| City, 
                State County Country | Intersection (Lat, Lng) | Type Status | Control Type / Other Control Type | Approaches / Driveways / ICD (m) | Functional Class / LaneType | Year Completed | Comments | 
|---|---|---|---|---|---|---|---|
| Millsboro,
                DE Sussex Co. United States | Sterling Blvd. / Peninsula Esplanade (38.60821, -75.16426) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | ||
| Marriottsville,
                MD Howard Co. United States | Sand Hill Rd. / Sand Hill Manor Dr. / Mount View Rd. (39.31018, -76.93043) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 28.9560 | Other (At-Grade) Single-Lane | 1998 | Year Completed estimated (1993-2002). | 
| Ijamsville,
                MD Frederick Co. United States | Whiskey Rd. / Whiskey Ct. (39.36078, -77.30012) | Other Existing | Unknown Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | ||
| Ijamsville,
                MD Frederick Co. United States | Royal Saint Andrews Pl. / Quail Creek Pl. (39.38039, -77.30788) | Other Existing | Unknown Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | ||
| Ballenger Creek,
                MD Frederick Co. United States | Newton Dr. / Hiteshow Dr. / Cheatham Way (39.36597, -77.44595) | Other Existing | Unknown Unknown | 5 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | ||
| Frederick,
                MD Frederick Co. United States | Jefferson Station Blvd. / Jefferson Commons Way (39.39479, -77.44916) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 45.7200 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2015 | Year Completed estimated (2013-2015). | 
| Ballenger Creek,
                MD Frederick Co. United States | Jefferson Technology Pkwy. / (unknown) (39.39256, -77.45666) | Unknown Existing | Unknown Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | ||
| Boonsboro,
                MD Washington Co. United States | Monument Dr. / West Wing Way (39.50248, -77.65503) | Other Existing | Unknown Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | ||
| Boonsboro,
                MD Washington Co. United States | Monument Dr. / Midlothian Way (39.50117, -77.65254) | Other Existing | Unknown Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | ||
| Boonsboro,
                MD Washington Co. United States | Monument Dr. / East Wing Way (39.50047, -77.65002) | Other Existing | Unknown Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | ||
| Winona,
                MN Winona Co. United States | US 14-US 61 / STH 43 (44.02956, -91.62216) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Multilane (2 Lane, 2x2 max) | 2022 | https://www.youtube.com/watch?v=xA9c17OwsGk | 
| Urbana,
                MD Frederick Co. United States | Stone Barn Dr. / Longleaf Dr. (39.33278, -77.36713) | Unknown Existing | Unknown Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | ||
| Gaithersburg,
                MD Montgomery Co. United States | Perry Pkwy. / (parking) (39.14899, -77.21048) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 47.2440 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2004 | Year Completed estimated (2002-2005). | 
| Redland,
                MD Montgomery Co. United States | Columbus Ave. / Gramercy Blvd. (39.12362, -77.16494) | Other Existing | All-Way Stop Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | ||
| King Farm,
                MD Montgomery Co. United States | Pleasant Circle (39.11623, -77.17518) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | Pedestrian access to central island. | |
| Potomac,
                MD Montgomery Co. United States | 10600 Morning Field Dr. / Sunny Brooke Ln. / Sunny Brooke Pl. (39.07423, -77.21561) | Other Existing | Unknown Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | ||
| Potomac,
                MD Montgomery Co. United States | Broad Green Dr. / Clagett Farm Dr. (39.04566, -77.19669) | Other Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | ||
| Potomac,
                MD Montgomery Co. United States | Larkmeade Ln. / Bells Ridge Dr. (39.03483, -77.16775) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | ||
| Leesburg,
                VA Loudoun Co. United States | Beauregard Dr. SE / Fortress Cir. SE (39.09720, -77.55053) | Other Existing | Unknown Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | ||
| Paeonian Springs,
                VA Loudoun Co. United States | Charles Town Pike / SR 7 WB Ramps (39.14190, -77.61205) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 53.3400 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x1 max) | 2015 | Year Completed estimated (2014-2016). | 
| Marana,
                AZ Pima Co. United States | N Sandario Rd. / W Twin Peaks Rd. (32.38076, -111.21671) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2022 | https://www.maranaaz.gov/news/2022/5/25/traffic-alert-construction-on-a-new-roundabout-located-at-the-twin-peaks-and-sandario-road-intersection | 
| Carpinteria,
                CA Santa Barbara Co. United States | Ogan Rd. / Via Real / US 101 NB On-Ramp (34.40144, -119.51551) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 38.1000 | Freeway Ramps (Grade-Separated) Single-Lane | 2020 | https://www.coastalview.com/news/roadways-open-with-improvements/article_979e3586-c6f1-11ea-bc84-b3d50932177b.html | 
| Lima,
                OH Allen Co. United States | Market St. / Main St. (40.73998, -84.10498) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2022 | https://www.hometownstations.com/news/more-downtown-parking-being-added-now-that-roundabout-in-limas-town-square-is-open/article_b354ae8e-085a-11ed-8496-e7e7595f316f.html [Note: previous intersection looked somewhat like a roundabout. Not quite round and it had stop signs on the N-S approaches and only pedestrian stop lights on E-W approaches.] | 
| Baton Rouge,
                LA East Baton Rouge Par. United States | Stumberg Ln. / Womans Way (30.38264, -91.03593) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 59.4360 | Other (At-Grade) Multilane (2 Lane, 2x2 max) | 2012 | Year Completed estimated (2011-2013). | 
| Port Vincent,
                LA Livingston Par. United States | LA 16 (Petes Hwy.) / LA 447 (Walker South Rd.) (30.35577, -90.84991) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 39.6240 | Other (At-Grade) Single-Lane | 2022 | |
| Baton Rouge,
                LA East Baton Rouge Par. United States | N Stadium Rd. / Field House Dr. (30.41398, -91.18246) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 30.4800 | Other (At-Grade) Single-Lane | 2006 | On campus of Louisiana State University. | 
| Baton Rouge,
                LA East Baton Rouge Par. United States | Capitol Access Rd. / Capitol Lake Dr. (30.45808, -91.18278) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 38.1000 | Other (At-Grade) Single-Lane | 2016 | |
| Baton Rouge,
                LA East Baton Rouge Par. United States | Capitol Lake Rd. / Capitol Access Rd. (30.45818, -91.18621) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 38.1000 | Other (At-Grade) Single-Lane | 2016 | |
| Casper,
                WY Natrona Co. United States | Rustic Dr. / Rustic Ct. / Rustic Pl. (42.82970, -106.28379) | Other Existing | Unknown Unknown | 5 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | ||
| Casper,
                WY Natrona Co. United States | Jasper Dr. / Preserve Cir. (42.82867, -106.28915) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | No splitter islands on three legs. | |
| Cheyenne,
                WY Laramie Co. United States | (unknown) / (parking) (41.10110, -104.78426) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 51.8160 | Other (At-Grade) Single-Lane | 2019 | Year Completed estimated (2019-2021). | 
| Cheyenne,
                WY Laramie Co. United States | (unknown) / (parking) (41.10103, -104.78019) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 51.8160 | Other (At-Grade) Single-Lane | 2019 | Year Completed estimated (2019-2021). | 
| Houston,
                TX Harris Co. United States | Point Park Dr. / (unknown) (29.90706, -95.63522) | Other Existing | Unknown Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | ||
| Cypress,
                TX Harris Co. United States | Fairfield Green Blvd. / Fairfield Park Dr. (30.00533, -95.75155) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | ||
| Cypress,
                TX Harris Co. United States | Fairfield Green Circle (30.00584, -95.74990) | Other Existing | Unknown Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | Building in central island. | |
| Cypress,
                TX Harris Co. United States | Golden Elm Circle (30.00926, -95.75279) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | Pedestrian access to central island. | |
| Magnolia,
                TX Montgomery Co. United States | Magnolia Ridge Blvd. / Jewett Meadow Dr. / Rogerdale River Dr. (30.21121, -95.73470) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | ||
| Vestal,
                NY Broome Co. United States | Glenn G Bartle Dr. / West Dr. (42.09200, -75.96836) | Other Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Multilane (2 Lane, 2x2 max) | Concentric striped circulatory roadway. | |
| Athol,
                ID Kootenai Co. United States | SR 54 / N Good Hope Rd. / N Perimeter Rd. (47.94732, -116.61237) | Rotary Existing | Other None | 4 Approaches 0 Driveways 126.4920 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | Yield signs on circulatory roadway. Elliptical shaped. ICD = 415 ft x 370 ft. | |
| Lincoln,
                NE Lancaster Co. United States | W A St. / S Folsom St. (40.79911, -96.73022) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-lane w/ Traversable Central Island | 2022 | https://www.lincoln.ne.gov/City/Departments/LTU/LTU-Projects/Projects/West-A-Street-Improvement-Project (video shows the roundabout at about 1:45) | 
| Princeton,
                NJ Mercer Co. United States | Rosedale Rd. / General Johnson Dr. (40.34571, -74.68801) | Roundabout Existing | All-Way Yield Rectangular Rapid Flashing Beacon (RRFB) | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-lane w/ Traversable Central Island | 2022 | https://planetprinceton.com/2022/08/25/rosedale-road-roundabout-project-now-complete/ | 
| Farmville,
                VA Prince Edward Co. United States | Farmville Rd. / Kingsville Rd. (37.24605, -78.44392) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2022 | Opened August 17, 2022. https://www.farmvilleherald.com/2022/08/kingsville-roundabout-finally-open/ | 
| Niagara Falls,
                ON Niagara Canada | Victoria Ave. / Bridge St. / Thorold Stone Rd. (43.10884, -79.07338) | Roundabout Existing | All-Way Yield None | 5 Approaches 0 Driveways 64.0000 | Other (At-Grade) Single-Lane | 2022 | https://www.youtube.com/watch?v=PJwDZ6g8cT0 | 
| St Joseph,
                MO Buchanan Co. United States | Robidoux St. / 8th St. (39.76984, -94.85063) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 24.3840 | Other (At-Grade) Single-Lane | 2015 | Year Completed estimated (2014-2015). https://www.newspressnow.com/opinion/editorials/progress-in-a-roundabout-way/article_3dba548e-dbbf-11ec-9a02-6faad919c23d.html | 
| Auraria,
                CO Denver Co. United States | Saint Francis Way / 11th St. (39.74196, -105.00110) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | ||
| Denver,
                CO Arapahoe Co. United States | S Yosemite St. / E Wesley Dr. (39.67305, -104.88513) | Other Existing | Unknown Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | No splitter islands. | |
| Saddle Rock East,
                CO Arapahoe Co. United States | E Roxbury Dr. / S Wenatchee Way (39.58699, -104.72125) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | ||
| Tallyns Reach,
                CO Arapahoe Co. United States | E Roxbury Dr. / E Easter Dr. (39.58714, -104.71273) | Other Existing | Unknown Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | ||
| Inspiration,
                CO Douglas Co. United States | Gartrell Rd. / E Rocky Top Ave. (39.55491, -104.70847) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 27.4320 | Other (At-Grade) Single-Lane | 2020 | Year Completed estimated (2019-2021). | 
| Rowley Downs,
                CO Douglas Co. United States | Aintree Ct. / Aintree Pl. (39.50899, -104.75397) | Other Existing | Unknown Unknown | 3 Approaches 2 Driveways 0.0000 | Other (At-Grade) Single-Lane | ||
| Hidden River,
                CO Douglas Co. United States | Club Dr. / Bridlewood Ln. (39.50029, -104.74912) | Other Existing | Unknown Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | No splitter islands; only diverging yellow lines. | |
| Parker,
                CO Douglas Co. United States | Blackmoor St. (39.50578, -104.72041) | Other Existing | Unknown Unknown | 2 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | ||
| The Farm,
                CO El Paso Co. United States | Ent Pkwy. / Federal Dr. (38.99879, -104.81095) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2021 | Year Completed estimated (2020-2022). | 
| Interquest,
                CO El Paso Co. United States | United Heights / (unknown) (38.98973, -104.80083) | Other Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 24.3840 | Other (At-Grade) Single-Lane | No splitter islands on north and south legs. | |
| Deerfield Hills,
                CO El Paso Co. United States | Drennan Rd. / Post Oak Dr. (38.78168, -104.74115) | Other Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | No splitter islands; only diverging yellow lines. | |
| Deerfield Hills,
                CO El Paso Co. United States | Drennan Rd. / Monica Dr. W (38.78171, -104.74739) | Other Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | No splitter islands; only diverging yellow lines. | |
| Deerfield Hills,
                CO El Paso Co. United States | Drennan Rd. / Springnite Dr. (38.78171, -104.75088) | Other Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | No splitter islands; only diverging yellow lines. | |
| McCalla,
                AL Jefferson Co. United States | Old Tuscaloosa Hwy. / McAdory School Rd. (33.33566, -87.01218) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.6240 | Other (At-Grade) Single-Lane | 2022 | https://www.youtube.com/watch?v=GS7xX-8KUkc | 
| Calgary,
                AB Division 6 Canada | Sarcee Trl. SW / Na'a Dr. SW / Trans-Canada Hwy EB Ramps (51.07800, -114.18891) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 55.0000 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x1 max) | 2017 | |
| Calgary,
                AB Division 6 Canada | Na'a Dr. SW / Na'a Plaza SW (51.07872, -114.19234) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 58.0000 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2020 | |
| Calgary,
                AB Division 6 Canada | 34 Ave. NW / Sarcee Trl. NW (51.08368, -114.18893) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 42.0000 | Other (At-Grade) Single-Lane | 2022 | |
| Calgary,
                AB Division 6 Canada | West Valley Rd. SW / 101 St. SW / 1 Ave. SW / Trans-Canada Hwy EB On-Ramp (51.08514, -114.23423) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 50.0000 | Freeway Ramps (Grade-Separated) Single-Lane | 2022 | |
| Calgary,
                AB Division 6 Canada | Valley Ridge Blvd. NW / Trans Canada Hwy EB Ramps (51.08743, -114.24755) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 67.0000 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 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. | 
| Celina,
                TX Collin Co. United States | Punk Carter Pkwy. / Kinship Pkwy. (33.28419, -96.76992) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 36.5760 | Other (At-Grade) Single-Lane | 2018 | |
| Celina,
                TX Collin Co. United States | W Ownsby Pkwy. / Etta Terrace (33.27912, -96.78895) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 47.2440 | Other (At-Grade) Single-Lane | 2020 | |
| Prosper,
                TX Collin Co. United States | Richland Blvd. / S Coleman St. (33.22432, -96.80275) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 53.3400 | Other (At-Grade) Multilane (2 Lane, 2x2 max) | 2020 | |
| McKinney,
                TX Collin Co. United States | Limousine Pkwy. / Rivercrest Dr. (33.24434, -96.65728) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.0144 | Other (At-Grade) Single-Lane | 2020 | |
| Fulshear,
                TX Fort Bend Co. United States | Parkside Passage Dr. / Fulshear Trace (29.67645, -95.89920) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 33.5280 | Other (At-Grade) Single-Lane | 2020 | |
| Fulshear,
                TX Fort Bend Co. United States | Texas Heritage Pkwy. / (unknown) (29.69670, -95.87960) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 51.8160 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2021 | |
| Richmond,
                TX Fort Bend Co. United States | Texas Heritage Pkwy. / (unknown) (29.68788, -95.87474) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 48.7680 | Other (At-Grade) Multilane (2 Lane, 2x2 max) | 2021 | |
| Katy,
                TX Waller Co. United States | Pederson Rd. / (unknown) (29.77246, -95.88083) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 51.8160 | Other (At-Grade) Multilane (2 Lane, 2x2 max) | 2021 | |
| Blackhorse Ranch South,
                TX Harris Co. United States | Autumn Light Ln. / Winding Star Ln. (29.95095, -95.71406) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 39.6240 | Unknown Single-Lane | 2018 | Constructed as traffic circle around 2004 with no splitter island on south leg and unknown control. Painted splitter island on south leg added 2017-2019. | 
| (unincorporated),
                SC Spartanburg Co. United States | SC 11 / Parris Bridge Rd. (35.15971, -81.91854) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2022 | Year Completed estimated (2021-2022). https://www.wspa.com/news/roundabout-proposed-at-hwy-11-parris-bridge-road/ | 
| Tulsa,
                OK Tulsa Co. United States | Sage Blvd. / (hospital entrance) / (parking) (36.03334, -95.85593) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 47.2440 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2010 | Oval shaped. ICD = 155 ft x 135 ft. | 
| Madison,
                WI Dane Co. United States | Felland Rd. / Tranquility Trl. (43.12504, -89.27625) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.6240 | Other (At-Grade) Single-Lane | 2021 | https://www.youtube.com/watch?v=nTuFFRcmDPY | 
| Waxahachie,
                TX Ellis Co. United States | Bessie Coleman Blvd. / Dean Box Dr. (32.42802, -96.82893) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 33.5280 | Other (At-Grade) Single-Lane | 2022 | |
| Red Oak,
                TX Ellis Co. United States | Harmony Way / Grand Meadow Blvd. (32.53842, -96.82920) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 35.0520 | Other (At-Grade) Single-Lane | 2022 | Add-lane right-turn bypass lanes on all legs. Two-lane pedestrian crossings across all entries and exits. | 
| Prosper,
                TX Denton Co. United States | Commons Way / Madison Square Way (33.24175, -96.85610) | Other Existing | All-Way Yield None | 3 Approaches 0 Driveways 32.0037 | Other (At-Grade) Single-Lane | 2017 | No splitter islands. | 
| Fort Worth,
                TX Tarrant Co. United States | Keller Haslet Rd. / (connector to Alliance Gateway Fwy. WB Frontage Road) / (parking) (32.97209, -97.28930) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 51.8160 | Other (At-Grade) Multilane (2 Lane, 2x2 max) | 2021 | |
| Weatherford,
                TX Parker Co. United States | College Park Dr. / Martin Dr. (32.73953, -97.78931) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.6240 | Other (At-Grade) Single-Lane | 2019 | |
| Tomball,
                TX Harris Co. United States | Willowcreek Ranch Rd. / Three Bears Trl. (30.05938, -95.65177) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 48.7680 | Other (At-Grade) Single-Lane | 2015 | |
| Colleyville,
                TX Tarrant Co. United States | John McCain Rd. / Westcoat Dr. (32.91156, -97.16404) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 25.9080 | Other (At-Grade) Single-Lane | 2020 | |
| Driftwood,
                TX Hays Co. United States | FM 150 (Rebel Rd.) / FM 3237 (30.04763, -97.98845) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 48.7680 | Other (At-Grade) Single-Lane | 2022 | https://haysfreepress.com/2022/07/27/hays-county-celebrates-the-latest-roundabout/ | 
| New Braunfels,
                TX Comal Co. United States | Main Plaza (Seguin Ave. / San Antonio St.) (29.70300, -98.12464) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Multilane (2 Lane, unspecified) | Pedestrian access to central island; parking along circulatory roadway. | |
| Wisconsin Rapids,
                WI Wood Co. United States | 4th Ave. N / W Jackson St. (44.39515, -89.82829) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 33.5280 | Other (At-Grade) Single-Lane | 2022 | https://finance.yahoo.com/news/west-jackson-street-construction-roundabout-100032878.html | 
| Blandon,
                PA Berks Co. United States | US 222 (Allentown Pike) / Tamarack Blvd. / Genesis Dr. (40.45234, -75.89067) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | 2022 | Year Completed estimated (2020-2022). | 
| South Patrick Shores,
                FL Brevard Co. United States | Berkeley St. / 1st Ave. (28.20050, -80.59852) | Other Existing | Other Unknown | 4 Approaches 2 Driveways 0.0000 | Other (At-Grade) Single-Lane | Painted splitter islands on three legs. Mix of yield and stop control. | |
| Farrell,
                PA Mercer Co. United States | Park Ave. / Shenango Blvd. (41.21390, -80.48867) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | No splitter islands. | |
| Farrell,
                PA Mercer Co. United States | Park Ave. / Buhl Terrace (41.21293, -80.48864) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | No splitter islands. | |
| Farrell,
                PA Mercer Co. United States | Park Ave. / Farrell Terrace (41.21112, -80.48861) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | No splitter islands. | |
| Salinas,
                CA Monterey Co. United States | E Alisal St. / Alisal Rd. / Bardin Rd. (36.67331, -121.60192) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 39.6240 | Other (At-Grade) Single-Lane | 2022 | Year Completed estimated (2021-2022). | 
| Salinas,
                CA Monterey Co. United States | Alisal Rd. / Sconberg Pkwy. (36.67234, -121.60073) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 39.0144 | Other (At-Grade) Single-Lane | 2022 | Year Completed estimated (2021-2022). | 
| Savage,
                MD Howard Co. United States | Washington St. / Foundry St. (39.13656, -76.82513) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 18.2880 | Other (At-Grade) Single-lane w/ Traversable Central Island | 2021 | Painted splitter islands. Pedestrian crossing on west leg adjacent to circulatory roadway. https://www.howardcountymd.gov/News120121 | 
| Glenelg,
                MD Howard Co. United States | Triadelphia Rd. / Ten Oaks Rd. (39.26399, -76.98621) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 32.0040 | Other (At-Grade) Single-Lane | 2000 | Year Completed estimated (1992-2002). | 
| Tuckahoe,
                VA Henrico Co. United States | Henrico Ave. / Glendale Dr. / Knowland Cir. / University Blvd. (37.59204, -77.56166) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2022 | Temporary installation. https://www.nbc12.com/video/2022/08/15/first-community-roundabout-henrico-complete/ | 
| Richmond,
                VA Richmond City United States | W Laburnum Ave. / I-195 SB Ramps (37.58383, -77.47494) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 30.4800 | Freeway Ramps (Grade-Separated) Single-lane w/ Traversable Central Island | 2020 | Central island made of pre-cast concrete. https://precast.org/2021/08/first-of-its-kind/ | 
| Moscow,
                ID Latah Co. United States | S Mountain View Rd. / E 6th St. (46.73023, -116.98020) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | 2022 | |
| Huntsville,
                AL Madison Co. United States | Jordan Rd. / Homer Nance Rd. / Tanglefoot Dr. (34.78628, -86.49546) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2022 | https://www.youtube.com/watch?v=Cn1O6eeHyy0 | 
| Charlottesville City,
                VA Charlottesville City United States | Oakhurst Circle (38.03147, -78.50666) | Other Existing | Unknown Unknown | 2 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown |