| City, 
                State County Country | Intersection (Lat, Lng) | Type Status | Control Type / Other Control Type | Approaches / Driveways / ICD (m) | Functional Class / LaneType | Year Completed | Comments | 
|---|---|---|---|---|---|---|---|
| Glenarden,
                MD Prince George's Co. United States | Campus Way N / Woodmore Center Dr. (38.92263, -76.84787) | Other Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | Inside shopping center. No splitter islands on northwest and southeast legs. | |
| Cinnaminson,
                NJ Burlington Co. United States | Branch Pike / Burlington Pike (39.99064, -75.00752) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 32.0040 | Other (At-Grade) Single-Lane | 2008 | Inside shopping center. Year Completed estimated (2007-2008). | 
| Stone Mountain Park,
                GA DeKalb Co. United States | Robert E Lee Blvd. / Covered Bridge Ln. (33.80518, -84.13525) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 23.8178 | Other (At-Grade) Single-Lane | 2003 | Inside Stone Mountain Park. Functional Class: Local ICD estimated from Google Maps linework. | 
| University City,
                MO St. Louis Co. United States | Delmar Blvd. / Trinity Ave. (38.65653, -90.31072) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 31.7103 | Other (At-Grade) Single-Lane | 2015 | Installed as temporary roundabout ~2013. Made permanent 2015. ICD estimated from Google Maps linework. | 
| Milwaukee,
                WI Milwaukee Co. United States | E Hampshire Ave. / N Bartlett Ave. (43.07567, -87.88907) | Traffic Calming Circle Existing | Uncontrolled Unknown | 4 Approaches 0 Driveways 16.1541 | Other (At-Grade) Single-Lane | Installed before April 2005. | |
| Milwaukee,
                WI Milwaukee Co. United States | N Cambridge Ave. / E Kenwood Blvd. (43.07468, -87.89152) | Traffic Calming Circle Existing | All-Way Stop Unknown | 3 Approaches 0 Driveways 9.7536 | Other (At-Grade) Single-lane w/ Traversable Central Island | Installed before April 2005. | |
| Milwaukee,
                WI Milwaukee Co. United States | E Kenwood Blvd. / N Newhall St. (43.07468, -87.89032) | Traffic Calming Circle Existing | Uncontrolled None | 4 Approaches 0 Driveways 17.6784 | Other (At-Grade) Single-Lane | Installed before April 2005. | |
| Milwaukee,
                WI Milwaukee Co. United States | E Kenwood Dr. / N Bartlett Ave. (43.07467, -87.88911) | Traffic Calming Circle Existing | Uncontrolled None | 4 Approaches 0 Driveways 16.4589 | Other (At-Grade) Single-Lane | Installed before April 2005. | |
| Milwaukee,
                WI Milwaukee Co. United States | E Brown St. / N Hubbard St. (43.05646, -87.90837) | Traffic Calming Circle Existing | Uncontrolled None | 4 Approaches 0 Driveways 19.8120 | Other (At-Grade) Single-Lane | Installed before February 2005. | |
| Milwaukee,
                WI Milwaukee Co. United States | E Hartford Ave. / N Newhall St. (43.07766, -87.89023) | Traffic Calming Circle Existing | Uncontrolled None | 4 Approaches 0 Driveways 16.7637 | Other (At-Grade) Single-Lane | Installed before March 2000, exact date unknown | |
| Milwaukee,
                WI Milwaukee Co. United States | E Hartford Ave. / N Bartlett Ave. (43.07765, -87.88901) | Traffic Calming Circle Existing | Uncontrolled None | 4 Approaches 0 Driveways 16.4589 | Other (At-Grade) Single-Lane | Installed before March 2000. | |
| Milwaukee,
                WI Milwaukee Co. United States | E Reservoir Ave. / N Hubbard St. (43.05516, -87.90840) | Traffic Calming Circle Existing | Uncontrolled None | 4 Approaches 0 Driveways 19.2024 | Other (At-Grade) Single-Lane | Installed before March 2000. | |
| Naples,
                FL Collier Co. United States | 8th St. S / 12th Ave. S (26.13267, -81.79491) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 18.2281 | Other (At-Grade) Single-Lane | 1996 | Installed for community enhancement. ICD estimated from Google Maps linework. | 
| Naples,
                FL Collier Co. United States | 7th St. N. / 12th Ave. N. (26.15734, -81.79282) | Traffic Calming Circle Existing | All-Way Yield None | 4 Approaches 0 Driveways 13.7160 | Other (At-Grade) Single-Lane | 1996 | Installed for traffic calming. Detailed traffic volume, speed data available. ICD estimated from Google Earth. | 
| Naples,
                FL Collier Co. United States | 7th St. N. / 3rd Ave. N. (26.15530, -81.80524) | Traffic Calming Circle Existing | All-Way Yield None | 4 Approaches 0 Driveways 9.6483 | Other (At-Grade) Single-Lane | 1998 | Installed for traffic calming. Detailed traffic volume, speed data available. ICD estimated from Google Maps linework. | 
| Naples,
                FL Collier Co. United States | 7th St. N. / 7th Ave. N. (26.15619, -81.79971) | Traffic Calming Circle Existing | All-Way Yield None | 4 Approaches 0 Driveways 22.5125 | Other (At-Grade) Single-Lane | 1998 | Installed for traffic calming. Detailed traffic volume, speed data available. Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework. | 
| Naples,
                FL Collier Co. United States | 7th St. N. / 11th Ave. N. (26.15712, -81.79420) | Traffic Calming Circle Existing | All-Way Yield None | 4 Approaches 0 Driveways 13.7160 | Other (At-Grade) Single-Lane | 1996 | Installed for traffic calming. Painted splitter islands. Detailed traffic volume, speed data available. ICD estimated from Google Earth. | 
| Coronado,
                CA San Diego Co. United States | Pomona Ave. / 7th St. / Adella Ave. (32.68808, -117.17250) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 30.4800 | Other (At-Grade) Single-Lane | 2008 | Installed initially as temporary construction with no landscaping in 2008. Made permanent in 2014. | 
| South Mountain,
                AZ Maricopa Co. United States | S 20th St. / E Euclid St. (33.36686, -112.04021) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 19.2024 | Other (At-Grade) Single-Lane | 2015 | Installed initially as traffic calming circle in 2007-2009. Converted to roundabout 2014-2015. | 
| Bargersville,
                IN Johnson Co. United States | SR 144 / I-69 SB Ramps (39.56591, -86.24760) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 0.0000 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2022 | Interchange replaced at-grade signalized intersection. | 
| Bargersville,
                IN Johnson Co. United States | SR 144 / CR 144 / I-69 NB Ramps (39.56557, -86.24616) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 0.0000 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2022 | Interchange replaced at-grade signalized intersection. | 
| Wentzville,
                MO St. Charles Co. United States | Prospect Rd. / I-64 EB Exit Ramp (38.79596, -90.82043) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 42.6717 | Freeway Ramps (Grade-Separated) Single-Lane | 2008 | Interchange replaced single at-grade intersection. Year Completed estimated (2008-2009). | 
| Wentzville,
                MO St. Charles Co. United States | Prospect Rd. / Corporate Pkwy. / I-64 WB Exit Ramp (38.79597, -90.81810) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 42.6720 | Freeway Ramps (Grade-Separated) Single-Lane | 2008 | Interchange replaced single at-grade intersection. Year Completed estimated (2008-2009). | 
| Janesville,
                WI Rock Co. United States | N Harmony Town Hall Rd. / STH 26 NB Ramps (42.75114, -88.95416) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 39.6240 | Freeway Ramps (Grade-Separated) Single-Lane | 2012 | Interchange replaced single at-grade two-way stop-controlled intersection. | 
| Janesville,
                WI Rock Co. United States | N Harmony Town Hall Rd. / STH 26 SB Ramps (42.75331, -88.95426) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 39.6240 | Freeway Ramps (Grade-Separated) Single-Lane | 2012 | Interchange replaced single at-grade two-way stop-controlled intersection. | 
| McFarland,
                WI Dane Co. United States | CR AB / US 12-US 18 WB Ramps (43.04036, -89.24278) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 0.0000 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2023 | Interchange replaced single stop-controlled intersection. | 
| McFarland,
                WI Dane Co. United States | CR AB / US 12-US 18 EB Ramps (43.03910, -89.24354) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 0.0000 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2023 | Interchange replaced single stop-controlled intersection. | 
| Charlotte,
                NC Mecklenburg Co. United States | Moores Chapel Rd. / I-485 SB Ramp (35.27376, -80.96779) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 37.0520 | Freeway Ramps (Grade-Separated) Single-Lane | 2005 | Interchange terminal. Fatal crash June 28, 2011. ICD estimated from Google Maps linework. | 
| Charlotte,
                NC Mecklenburg Co. United States | Moores Chapel Rd. / I-485 NB Ramp (35.27366, -80.96478) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 37.0520 | Freeway Ramps (Grade-Separated) Single-Lane | 2005 | Interchange terminal. Fatal crash May 14, 2008. ICD estimated from Google Maps linework. | 
| Modesto,
                CA Stanislaus Co. United States | Coffee Rd. / Claratina Ave. (37.69985, -120.97630) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 32.1294 | Other (At-Grade) Single-Lane | 2008 | Interim configuration ICD estimated from Google Maps linework. | 
| American Fork,
                UT Utah Co. United States | N 4850 W / 620 S (40.36393, -111.77437) | Roundabout Existing | All-Way Yield None | 3 Approaches 1 Driveways 53.3400 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2021 | Interim configuration with north, south, and west legs only. Right-turn-only lane on west leg and striped out receiving lane in circulatory roadway. Two circulating lanes on north leg in interim configuration. Year Completed estimated (2021-2022). | 
| Celina,
                TX Collin Co. United States | Choate Pkwy. / Kinship Pkwy. (33.29258, -96.76976) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 60.9600 | Other (At-Grade) Multilane (2 Lane, 2x2 max) | 2021 | Interim scenario - ultimate lane configuration striped out on initial build. | 
| Bend,
                OR Deschutes Co. United States | NW Crossing Dr. / Shevlin Park Road (44.06410, -121.34480) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 34.3280 | Other (At-Grade) Single-Lane | 2006 | Intersection as part of NW Crossing Development. Connection to existing NW Shevlin Park Road. ICD estimated from Google Maps linework. | 
| Topeka,
                KS Shawnee Co. United States | Wanamaker Rd. / SW 6th Ave. (39.05662, -95.76134) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 54.7180 | Other (At-Grade) Single-Lane | 2004 | Intersection expanded for new development. Previously T with 6th controlled by stop sign. Previously controlled by one-way stop ICD estimated from Google Maps linework. | 
| Colonie,
                NY Albany Co. United States | Albany Shaker Rd. / Maxwell Rd. (42.72396, -73.79143) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 37.7278 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2011 | Intersection is being relocated to east. Addition of a fourth leg is planned. Previously controlled by one-way stop Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Nampa,
                ID Canyon Co. United States | N Happy Valley Rd. / E Victory Rd. (43.57444, -116.51303) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2021 | Intersection moved 0.1 mile south due to airport. https://www.idahopress.com/news/local/1903-wright-flyer-sculpture-featured-at-new-roundabout-near-nampa-airport/article_a2bb7a2a-7fdf-5110-b36f-8657c33dda60.html | 
| Corbin,
                KY Whitley Co. United States | Black Diamond Rd. / SR 727 (5th Street Rd.) (36.92753, -84.14583) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 42.6720 | Other (At-Grade) Single-Lane | 2024 | Intersection moved 150-200 feet to the west. | 
| Buffalo,
                MN Wright Co. United States | 35th St. NE / Braddock Ave. (45.20177, -93.87000) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2023 | Intersection moved 250-300 feet to the west. | 
| Oxford,
                MS Lafayette Co. United States | S Lamar Blvd. / Belk Blvd. (34.34730, -89.52118) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 42.4013 | Unknown Single-Lane | 2018 | Intersection moved about 100 feet north. https://www.oxfordeagle.com/2018/07/13/construction-continues-on-south-lamar-roundabout/ ICD estimated from Google Maps linework. | 
| Canton,
                OH Stark Co. United States | Harrisburg Rd. NE / 30th St. NE / (unknown) (40.82993, -81.34759) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 38.1000 | Other (At-Grade) Single-Lane | 2019 | Intersection moved about 100 feet south. Year Completed estimated (2019-2020). | 
| Anderson,
                SC Anderson Co. United States | Brown Rd. / Kings Rd. / Frances Cannon Dr. (34.56968, -82.66937) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 23.6029 | Other (At-Grade) Single-Lane | 2018 | Intersection moved about 100 ft south; Frances Cannon Dr rerouted to the roundabout. Truck apron takes up almost the entire center island. https://www.independentmail.com/story/news/local/2017/12/28/roundabouts-coming-anderson-two-years-after-they-were-announced/871867001/ ICD estimated from Google Maps linework. | 
| Bradford West Gwillimbury,
                ON Simcoe Canada | 6th Line / Sideroad 10 (44.09236, -79.59798) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | 2023 | Intersection moved about 100 m south. https://www.townofbwg.com/en/business-development/south-west-arterial-road-swar.aspx. | 
| (unincorporated),
                GA Bibb County United States | US 80-SR 22 (Eisenhower Pkwy.) / Knoxville Rd. (32.79855, -83.78279) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 41.1480 | Other (At-Grade) Single-Lane | 2023 | Intersection moved about 150 feet west. | 
| Fishers,
                IN Hamilton Co. United States | E 136th St. / Southeastern Pkwy. / (unknown) (39.98700, -85.91258) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 37.5184 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2018 | Intersection moved about 500 feet east. ICD estimated from Google Maps linework. | 
| Sherwood,
                OR Washington Co. United States | SW Elwert Rd. / SW Kruger Rd. / Cedar Ln. (45.35477, -122.86786) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2020 | Intersection of Kruger/Elwert was moved north a few hundred feet. That intersection was previously a two-way stop. | 
| Maple Grove,
                MN Hennepin Co. United States | Norwood Ln. / 85th Pl. (45.10971, -93.43961) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 44.6737 | Other (At-Grade) Single-Lane | 2006 | Intersection of local and collector street in residential development. Functional Class: Collector ICD estimated from Google Maps linework. | 
| Bryan,
                TX Brazos Co. United States | Wildflower Dr. / Towne Centre Way (30.66316, -96.32273) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 42.6717 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2009 | Intersection of two low-volume collector roadways in a shopping center development. Circular roadway is two lanes wide (with no lane markings) plus a 13' truck apron. | 
| West Des Moines,
                IA Dallas Co. United States | S. Crescent Way / Stagecoach Dr. (41.56252, -93.78701) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 33.9581 | Other (At-Grade) Single-Lane | 2007 | Intersection of two private residential streets on former Ponderosa Golf Course. ICD estimated from Google Maps linework. | 
| West Des Moines,
                IA Dallas Co. United States | S. Crescent Way / S. Ridgefield Way / Fairway Dr. (41.56541, -93.78633) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 33.9566 | Other (At-Grade) Single-Lane | 2007 | Intersection of two private residential streets on former Ponderosa Golf Course. ICD estimated from Google Maps linework. | 
| Beltsville,
                MD Prince George's Co. United States | Sellman Rd. / Woodbine Rd. (39.03418, -76.93680) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 45.7200 | Other (At-Grade) Single-Lane | 2008 | Intersection relocated south of previous TWSC intersection. | 
| Gainesville,
                FL Alachua Co. United States | Tower Rd. / SW 14th Ave. (29.63804, -82.42244) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 32.1802 | Other (At-Grade) Single-Lane | 2018 | Intersection relocated to south of previous 14th Ave. alignment. ICD estimated from Google Maps linework. | 
| Florence,
                AZ Pinal Co. United States | SR 79 Business / E Florence Heights Dr. (33.01869, -111.38695) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2024 | Intersection shifted approximately 200 ft to south. https://azdot.gov/projects/southcentral-district-projects/state-route-28779b-roundabout-florence | 
| Frankfort,
                IN Clinton Co. United States | SR 28 / Banderas Dr. / CR 800 W (40.26283, -86.64985) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2024 | Intersection shifted approximately 250 ft east. https://www.facebook.com/FrankfortPoliceDepartment/videos/its-national-roundabout-week-here-is-a-video-of-frankforts-own-roundabout-taken-/1952011948594793/ | 
| Goshen,
                IN Elkhart Co. United States | Peddlers Village Rd. / Reliance Rd. (41.60870, -85.88765) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2025 | Intersection shifted to west 100 ft. https://www.facebook.com/photo/?fbid=1196760372498683&set=a.233900875451309. | 
| Des Plaines,
                IL Cook Co. United States | N. Wolf Rd. / State St. / N. Broadway St. / E. Golf Rd. (42.05374, -87.91028) | Roundabout Existing | All-Way Yield None | 5 Approaches 0 Driveways 49.3776 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2018 | Intersection upgraded by IDOT to roundabout in 2018. | 
| Springfield,
                MO Greene Co. United States | S Lone Pine Ave. / E Galloway St. (37.14679, -93.23946) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 42.6720 | Other (At-Grade) Single-Lane | 2025 | Intersection was moved approximately 280 feet south. Railroad tracks near the intersection were removed. News article: https://www.ozarksfirst.com/news/new-roundabout-in-galloway-opens/ Images: https://www.facebook.com/groups/545630289548289/posts/1900650577379580/. | 
| Middletown,
                DE New Castle Co. United States | St Annes Church Rd. / Levels Rd. (39.42842, -75.73887) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 35.9783 | Other (At-Grade) Single-Lane | 2010 | Intersection was relocated when converted to roundabout. ICD estimated from Google Maps linework. | 
| Federal Way,
                WA King Co. United States | S 333rd St. / Community Center Entrance (47.30548, -122.32380) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 29.1550 | Other (At-Grade) Single-Lane | 2006 | January 2006. ICD estimated from Google Maps linework. | 
| Gig Harbor,
                WA Thurston Co. United States | Harbor Hill Dr. / (parking) (47.35845, -122.60116) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 45.7200 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2008 | January 2008. | 
| Maple Valley,
                WA King Co. United States | Witte Rd. SE / SE 248th St. (47.37966, -122.04813) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 36.5760 | Other (At-Grade) Single-Lane | 2011 | January 2011. | 
| Clearwater,
                FL Pinellas Co. United States | Palmetto St. / Casler Ave. (27.97541, -82.76752) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 21.0954 | Other (At-Grade) Single-Lane | 2003 | John F. Kennedy Middle School on NE corner. Crossing guard operation across N and E legs. ICD estimated from Google Maps linework. | 
| Rayville,
                LA Richland Par. United States | US 425 (Julia St. - Louisa St.) / Grimshaw St. / Christian Dr. (32.46006, -91.75859) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | 2022 | Julia Street on north leg is one-way into the roundabout; Louisa Street is one-way out of the roundabout. https://www.knoe.com/2022/09/15/town-rayville-celebrates-new-51-million-us-425-roundabout/ | 
| Monroe,
                WA Snohomish Co. United States | Country Crescent SE / County Crescent SE (47.86547, -121.96140) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 30.4800 | Other (At-Grade) Single-Lane | 2002 | July 2002. | 
| Auburn,
                WA King Co. United States | 124 Ave. SE / SE 304th St. (47.32978, -122.17640) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 33.1891 | Other (At-Grade) Single-Lane | 2008 | July 2008. ICD estimated from Google Maps linework. | 
| Tumwater,
                WA Thurston Co. United States | Littlerock Rd. SW / Tumwater Blvd. SW (46.98283, -122.93544) | Roundabout Existing | All-Way Yield None | 3 Approaches 1 Driveways 45.7200 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2009 | July 2009. | 
| Port Townsend,
                WA Jefferson Co. United States | SR 20 (Sims Way) / Thomas St. (48.10333, -122.79891) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 41.1480 | Other (At-Grade) Single-Lane | 2010 | July 2010. | 
| Renton,
                WA King Co. United States | N 10th St. / N 10th Pl. (47.49781, -122.20468) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 33.5280 | Other (At-Grade) Single-Lane | 2008 | June 2008. | 
| Woodland,
                WA Cowlitz Co. United States | Insel Rd. / Willow St. (45.92237, -122.73400) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 35.0520 | Other (At-Grade) Single-Lane | 2009 | June 2009. | 
| Kennewick,
                WA Benton Co. United States | SR 240 / US 395 SB Ramps (46.21697, -119.13980) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 47.9307 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2009 | June 2009. ICD estimated from Google Maps linework. | 
| Kennewick,
                WA Benton Co. United States | SR 240 / US 395 NB Ramps / Columbia Dr. (46.21688, -119.13680) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 28.0973 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2009 | June 2009. ICD estimated from Google Maps linework. | 
| Tumwater,
                WA Thurston Co. United States | Littlerock Rd. SW / Odegard Rd. SW (46.98985, -122.92650) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 36.5760 | Other (At-Grade) Single-Lane | 2010 | June 2010. | 
| Puyallup,
                WA Pierce Co. United States | 15th Ave. SE / 3rd St. SE (47.17741, -122.29100) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 32.0040 | Other (At-Grade) Single-Lane | 2010 | June 2010. | 
| Palmerston North,
                Wanganui-Manawatu Palmerston North New Zealand | Tremaine Ave. / Botanical Rd. / Gillespies Line (-40.35091, 175.58457) | Roundabout Existing | All-Way Yield None | 5 Approaches 0 Driveways | Other (At-Grade) Single-Lane | Kidney shaped. | |
| Giessendam,
                South Holland Hardinxveld-Giessendam Netherlands | Sportlaan / Schapedrift / Zwijnskade (51.82574, 4.80473) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 34.6936 | Other (At-Grade) Single-Lane | Kidney-shaped. ICD estimated from Google Maps linework. | |
| Arlington,
                TX Tarrant Co. United States | Beaver Creek Dr. / Park View Pl. (32.81111, -97.07518) | Traffic Calming Circle Existing | All-Way Stop None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2018 | Landscaped splitter island only on northwest leg. No apron; small landscaped central island with concrete curb. | 
| Euless,
                TX Tarrant Co. United States | Smokey Quartz Ln. / Blue Topaz Trl. (32.80268, -97.08013) | Traffic Calming Circle Existing | All-Way Stop None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-lane w/ Traversable Central Island | 2019 | Landscaped splitter islands on Smokey Quartz Ln; small brick-paved central island. | 
| Burlington,
                NC Alamance Co. United States | Boone Station Dr. / Boston Dr. (36.07077, -79.50516) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 50.2920 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2007 | Lane change required for northbound left turn. | 
| Austin,
                TX Williamson Co. United States | (unknown) (30.44990, -97.74539) | Other Existing | Unknown Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2022 | Lane change required for west-to-north movement. | 
| East Hanover,
                NJ Morris Co. United States | Health Plaza / (unknown) (40.80689, -74.39206) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 36.5760 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2012 | Lane change required to exit from left entry lane on west leg. Year Completed estimated (2010-2012). | 
| Hamburg,
                NY Erie Co. United States | Rte 179 / Gateway Blvd. / Rte 5 (Lake Shore Rd.) Ramps (42.79021, -78.84711) | Rotary Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 128.8386 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | Lane change required to go further than the next exit. ICD estimated from Google Maps linework. | |
| Bowling Green,
                KY Warren Co. United States | Frist Blvd. / Golden Autumn Way (36.96509, -86.40386) | Other Existing | All-Way Yield None | 2 Approaches 0 Driveways 0.0000 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2018 | Lane change required to make left turn. | 
| Catonsville,
                MD Baltimore Co. United States | Hilltop Cir. / UMBC Blvd. (39.25178, -76.71442) | Rotary Existing | All-Way Yield None | 4 Approaches 0 Driveways 60.1156 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2015 | Lane changes needed for some through movements. ICD estimated from Google Maps linework. | 
| Budejovice,
                South Bohemia Budweis Czechia | E49 / České Vrbné (49.00361, 14.45250) | Rotary Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways | Other (At-Grade) Multilane (2 Lane, unspecified) | Lane changes required for left-turn movements. | |
| Smyrna,
                GA Cobb Co. United States | Belmont Blvd. / Belmont Pl. SE (33.89147, -84.52132) | Other Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2013 | Lane changes required for through movements or left turns to circulate or exit. | 
| Sharpsburg,
                GA Coweta Co. United States | Fischer Crossing Blvd. / (unknown) (33.39771, -84.61863) | Other Existing | Uncontrolled None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | Lane changes required to exit three legs. Painted splitter islands on west, north, and east legs. | |
| Columbus,
                GA Muscogee Co. United States | Flat Rock Rd. / (unknown) (32.54468, -84.87492) | Other Existing | All-Way Yield None | 4 Approaches 0 Driveways 41.1480 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2021 | Lane changes required to exit. Year Completed estimated (2020-2022). | 
| Columbus,
                GA Muscogee Co. United States | Flat Rock Rd. / Midland Commons Blvd. (32.54189, -84.87478) | Other Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2021 | Lane changes required to exit. Year Completed estimated (2022-2022). | 
| Gainesville,
                FL Alachua Co. United States | Celebration Pointe Ave. / SW 35th Blvd. (29.62530, -82.38860) | Other Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Multilane (2 Lane, unspecified) | Lane changes required within circulatory roadway. | |
| Venice,
                Veneto Venice Italy | Rotonda Romea: Via Romea / A57 Ramps (45.47424, 12.21233) | Rotary Existing | All-Way Yield Unknown | 3 Approaches 4 Driveways | Other (At-Grade) Multilane (3+ Lane) | Lane changes required. | |
| Conyers,
                GA Rockdale Co. United States | Renaissance Dr. NE / Rockdale Health Care NE (33.68116, -83.98846) | Other Existing | Other None | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Multilane (2 Lane, unspecified) | Lane changing required for some movements; mix of stop and yield control. | |
| Sarasota,
                FL Sarasota Co. United States | US 41 (Tamiami Trl.) / Fruitville Rd. (27.33888, -82.54680) | Roundabout Existing | All-Way Yield Pedestrian Hybrid Beacon (PHB, HAWK) | 4 Approaches 0 Driveways 54.8640 | Other (At-Grade) Multilane (2 Lane, 2x2 max) | 2020 | Lane dividers using striping and raised pavement markers. Yield-controlled right-turn bypass lanes on south and east legs. https://www.heraldtribune.com/story/news/local/sarasota/2020/11/27/fruitville-roundabout-open-city-leaders-urge-motorists-slow-down/6398860002/ | 
| South Bend,
                IN St. Joseph Co. United States | Fellows St. / Dean Johnson Blvd. (41.66300, -86.24449) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 29.4441 | Other (At-Grade) Single-Lane | Lane drops on north and west legs without signs. Year Completed unknown (<1998). ICD estimated from Google Maps linework. | |
| Ephrata,
                WA Grant Co. United States | SR 282 / Dodson Rd. / A St. SE (47.30659, -119.55504) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 33.5280 | Other (At-Grade) Single-Lane | 2019 | Lane line extensions over exits. http://www.ifiberone.com/columbia_basin/ephrata-roundabout-drastically-reduces-collisions-17-months-after-its-completion/article_e3201c6e-0818-11eb-9a93-572d8357bf49.html | 
| Brighton,
                MA Suffolk Co. United States | Beacon St / Soldiers Field Parkway / Parsons St / US 20 (42.35821, -71.16022) | Rotary Existing | Other None | 5 Approaches 0 Driveways 147.3851 | Other (At-Grade) Multilane (3+ Lane) | Lane redesign in approx. 2013 Pavement markings redone in approx. 2010. Control Type: mix of Signal, stop and yield signs. All approaches have their own treatment. ICD estimated from Google Maps linework. | |
| Buford,
                GA Hall Co. United States | Lanier Islands Pkwy. / Bulldog Bite / Red Bud Ln. (34.17443, -84.01147) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2009 | Lane use arrow markings (without left arrows) but no visible striping on entries, circulating, or exit. Year Completed estimated (2008-2009). | 
| Jessup,
                MD Anne Arundel Co. United States | MD 198 (Laurel Fort Meade Rd.) / MD 32 WB Ramps (39.09178, -76.75688) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 53.3400 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2002 | Lanes reduced in 2010. 21442 | 
| Jessup,
                MD Anne Arundel Co. United States | MD 198 (Laurel Fort Meade Rd.) / MD 32 EB Ramps (39.08997, -76.75736) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 53.3400 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2002 | Lanes reduced in 2010. 21442 | 
| Lutz,
                FL Pasco Co. United States | Serenoa Dr. / Long Lake Ranch Blvd. / Nature View Dr. (28.18685, -82.50182) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 96.8480 | Other (At-Grade) Single-Lane | 2015 | Large central island to preserve grove of trees. ICD estimated from Google Maps linework. | 
| (unincorporated),
                FL Broward Co. United States | Heron Bay Blvd. N / Osprey Trl. (26.32849, -80.28289) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 83.4940 | Other (At-Grade) Single-Lane | 2003 | Large diameter. Two right-turn bypass lanes. Functional Class: Local ICD estimated from Google Maps linework. | 
| (unincorporated),
                FL Broward Co. United States | Heron Run Dr. / NW 122nd Ave. (26.31755, -80.28892) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 79.2198 | Other (At-Grade) Single-Lane | 2003 | Large diameter. Functional Class: Local ICD estimated from Google Maps linework. |