| City, 
                State County Country | Intersection (Lat, Lng) | Type Status | Control Type / Other Control Type | Approaches / Driveways / ICD (m) | Functional Class / LaneType | Year Completed | Comments | 
|---|---|---|---|---|---|---|---|
| Carmel,
                IN Hamilton Co. United States | Old Meridian St. / W Smokey Row Rd. (39.98359, -86.14087) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 42.6720 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2014 | ICD estimated from Google Maps linework. | 
| Carmel,
                IN Hamilton Co. United States | Spring Mill Rd. / Illinois St. (39.93194, -86.16465) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 47.2440 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2014 | Southeast leg added 2023-2024. | 
| Indianapolis,
                IN Marion Co. United States | Crawfordsville Rd. / W Main St. (39.78814, -86.24068) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 79.2480 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2015 | Right-turn-only lane on south leg. | 
| Juneau,
                AK Juneau United States | Glacier Hwy. / Mendenhall Loop Rd. (Back Loop) (58.38637, -134.64432) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 40.0674 | Other (At-Grade) Single-Lane | 2015 | ICD estimated from Google Maps linework. | 
| Catonsville,
                MD Baltimore Co. United States | Edmundson Avenue / Old Frederick Road (39.27533, -76.76612) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 20.3400 | Other (At-Grade) Single-Lane | 2010 | ICD estimated from Google Maps linework. | 
| Portland,
                OR Multnomah Co. United States | SE 13th Ave. / SE Salmon St. (45.51434, -122.65264) | Traffic Calming Circle Existing | One-Way/Two-Way Stop Unknown | 4 Approaches 0 Driveways 17.5750 | Other (At-Grade) Single-Lane | 1989 | Completed 1/11/1989. ICD estimated from Google Maps linework. | 
| Brunswick,
                MD Frederick Co. United States | MD 17 / Rosemont Drive / Dutchmans Creek (39.33480, -77.63671) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 43.4167 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2010 | ICD estimated from Google Maps linework. | 
| Brunswick,
                MD Frederick Co. United States | MD 17 / Volunteer Drive (39.33261, -77.63365) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 36.9516 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2010 | ICD estimated from Google Maps linework. | 
| Brunswick,
                MD Frederick Co. United States | Potomac View Parkway / Dutchmans Creek (39.33265, -77.63770) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 32.3326 | Other (At-Grade) Single-Lane | 2010 | ICD estimated from Google Maps linework. | 
| Brunswick,
                MD Frederick Co. United States | Potomac View Parkway / Volunteer Drive (39.33145, -77.63483) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 34.1808 | Other (At-Grade) Single-Lane | 2010 | ICD estimated from Google Maps linework. | 
| Baltimore,
                MD Baltimore City Co. United States | Old Frederick Road / Maple Wood Road (39.29094, -76.69283) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 25.8815 | Other (At-Grade) Single-Lane | 2013 | 4th leg not built yet - for future development ICD estimated from Google Maps linework. | 
| Baltimore,
                MD Baltimore City Co. United States | Wilkens Ave / Mount St / Ramsey St (39.28325, -76.64332) | Roundabout Existing | All-Way Yield None | 5 Approaches 0 Driveways 31.4310 | Other (At-Grade) Single-Lane | 2001 | Completed prior to 2002 ICD estimated from Google Maps linework. | 
| Baltimore,
                MD Baltimore City Co. United States | Canterbury Rd. / W 39th St. (39.33569, -76.62047) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 16.6275 | Other (At-Grade) Single-lane w/ Traversable Central Island | 2013 | ICD estimated from Google Maps linework. | 
| Cincinnati,
                OH Hamilton Co. United States | Fulton Ave / Eden Park Drive (39.11472, -84.49347) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 34.2865 | Other (At-Grade) Single-Lane | 1999 | ICD estimated from Google Maps linework. | 
| St Simons Island,
                GA Glynn Co. United States | Brockinton Dr. / Hanging Moss Dr. (31.16501, -81.39671) | Traffic Calming Circle Existing | Unknown None | 3 Approaches 0 Driveways 40.8785 | Other (At-Grade) Single-Lane | ICD estimated from Google Maps linework. | |
| Temecula,
                CA Riverside Co. United States | Rancho California Rd. / Anza Rd. (33.53401, -117.05592) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 39.8217 | Other (At-Grade) Single-Lane | 2012 | ICD estimated from Google Maps linework. | 
| Baltimore,
                MD Baltimore City Co. United States | Guilford Ave. / 22nd St. (39.31441, -76.61263) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 6.4682 | Other (At-Grade) Single-lane w/ Traversable Central Island | 2012 | ICD estimated from Google Maps linework. | 
| Baltimore,
                MD Baltimore City Co. United States | Guilford Ave. / E 24th St. (39.31650, -76.61276) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 9.2400 | Other (At-Grade) Single-lane w/ Traversable Central Island | 2012 | ICD estimated from Google Maps linework. | 
| Baltimore,
                MD Baltimore City Co. United States | Guilford Ave. / E 32nd St. (39.32703, -76.61345) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-lane w/ Traversable Central Island | 2012 | |
| Avon,
                CO Eagle Co. United States | William J Post Blvd. / Swift Gulch Rd. (39.62841, -106.49309) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 34.0351 | Other (At-Grade) Single-Lane | 2007 | Year completed estimated. ICD estimated from Google Maps linework. | 
| Eagle,
                CO Eagle Co. United States | Eby Creek Rd. / Chambers Ave. (39.65871, -106.82638) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 45.9733 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2013 | Estimated year completed; built sometime between 2011 and 2015. ICD estimated from Google Maps linework. | 
| Eagle,
                CO Eagle Co. United States | Eby Creek Rd. / I-70 EB Ramps (39.65961, -106.82719) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 37.6976 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2013 | Right-turn bypass lane in southeast quadrant. Estimated year completed; built sometime between 2011 and 2015. ICD estimated from Google Maps linework. | 
| Eagle,
                CO Eagle Co. United States | Eby Creek Rd. / I-70 WB Ramps (39.66068, -106.82819) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 32.1804 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2013 | Estimated year completed; built sometime between 2011 and 2015. ICD estimated from Google Maps linework. | 
| Eagle,
                CO Eagle Co. United States | Eby Creek Rd. / Market St. (39.66135, -106.82905) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 29.4218 | Other (At-Grade) Single-Lane | 2013 | Estimated year completed; built sometime between 2011 and 2015. ICD estimated from Google Maps linework. | 
| Eagle,
                CO Eagle Co. United States | US 6 / Sylvan Lake Rd. / Violet Ln. (39.64773, -106.83799) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 42.3021 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2007 | Estimated year completed. ICD estimated from Google Maps linework. | 
| Elmira,
                NY Chemung Co. United States | Maple Ave. / Caldwell Ave. (42.08399, -76.79589) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 8.8639 | Other (At-Grade) Single-lane w/ Traversable Central Island | 2012 | Year completed estimated (2011-2013). ICD estimated from Google Maps linework. | 
| Elmira,
                NY Chemung Co. United States | Maple Ave. / Horner St. (42.08282, -76.79445) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 17.7281 | Other (At-Grade) Single-lane w/ Traversable Central Island | 2012 | Year completed estimated (2011-2013). ICD estimated from Google Maps linework. | 
| Horseheads,
                NY Chemung Co. United States | Rte 13 / E. Franklin St. (42.16756, -76.80553) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 32.7531 | Other (At-Grade) Single-Lane | 2012 | ICD estimated from Google Maps linework. | 
| Horseheads,
                NY Chemung Co. United States | Rte 13 / Old Ithaca Rd. / Breesport Rd. (42.18851, -76.79076) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 29.2025 | Other (At-Grade) Single-Lane | 2012 | ICD estimated from Google Maps linework. | 
| Hamburg,
                NY Erie Co. United States | US 62 (Buffalo St.) / Prospect Ave. (42.72197, -78.82588) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 28.9548 | Other (At-Grade) Single-Lane | 2009 | ICD estimated from Google Maps linework. | 
| Hamburg,
                NY Erie Co. United States | US 62 (Buffalo St.) / Legion St. / Clark St. (42.72590, -78.82574) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 42.1134 | Other (At-Grade) Single-Lane | 2009 | ICD estimated from Google Maps linework. | 
| Buffalo,
                NY Erie Co. United States | Tifft St. / Rte 5 NB Ramps (42.83952, -78.85611) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 32.4029 | Freeway Ramps (Grade-Separated) Single-Lane | 2010 | ICD estimated from Google Maps linework. | 
| Buffalo,
                NY Erie Co. United States | Fuhrmann Blvd. / Outer Harbor Dr. (42.86220, -78.87408) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 39.3945 | Other (At-Grade) Single-Lane | 2010 | ICD estimated from Google Maps linework. | 
| Kill Devil Hills,
                NC Dare Co. United States | Veterans Dr. / (high school) (36.00637, -75.66875) | Other Existing | Uncontrolled None | 3 Approaches 0 Driveways 45.4086 | Other (At-Grade) Single-Lane | 2003 | Built for new high school. ICD estimated from Google Maps linework. | 
| Kill Devil Hills,
                NC Dare Co. United States | Veterans Dr. / 6th Ave. (36.00818, -75.66412) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways | Other (At-Grade) Single-Lane | 2003 | Built for new high school. | 
| New Bern,
                NC Craven Co. United States | Broad St. / Front St. (35.10776, -77.03563) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 27.3573 | Other (At-Grade) Single-Lane | 2001 | Part of enhancement project. ICD estimated from Google Maps linework. | 
| Chapel Hill,
                NC Durham Co. United States | Ephesus Church Rd. / Pope Rd. (35.93135, -78.99929) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 27.0780 | Other (At-Grade) Single-Lane | 2005 | Built by developer. ICD estimated from Google Maps linework. | 
| Durham,
                NC Durham Co. United States | NC 751 / Old Erwin Rd. (36.00068, -78.96225) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 27.0543 | Other (At-Grade) Single-Lane | 2003 | Spot safety project. Right-turn bypass lane. ICD estimated from Google Maps linework. | 
| Durham,
                NC Durham Co. United States | Circuit Dr. / Research Dr. (36.00615, -78.94078) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 22.2216 | Other (At-Grade) Single-Lane | 2003 | New north-south road through Duke University campus. ICD estimated from Google Maps linework. | 
| Durham,
                NC Durham Co. United States | Towerview Rd. / Campus Dr. (35.99779, -78.93916) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 24.1565 | Other (At-Grade) Single-Lane | 2004 | New entrance to parking areas on Duke University campus. ICD estimated from Google Maps linework. | 
| Durham,
                NC Durham Co. United States | Woodcroft Pkwy. / Highgate Rd. (35.92228, -78.93601) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 34.8186 | Other (At-Grade) Single-Lane | 2005 | City safety project in lieu of signal. ICD estimated from Google Maps linework. | 
| Durham,
                NC Durham Co. United States | Southpoint Auto Park Blvd. / Johnson Victory Cir. (35.90882, -78.94987) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 42.5633 | Other (At-Grade) Single-Lane | 2004 | Built by developer. ICD estimated from Google Maps linework. | 
| Durham,
                NC Durham Co. United States | Glendale Ave. / Washington St. (36.02251, -78.90046) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 34.7744 | Other (At-Grade) Single-Lane | 2000 | Modified circle, part of I-85 detour route. ICD estimated from Google Maps linework. | 
| Wake Forest,
                NC Wake Co. United States | South Ave. (NC 98-US 1 Alt) / S Main St. (35.97893, -78.51203) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 21.2627 | Other (At-Grade) Single-Lane | 2006 | Moving Ahead project. ICD estimated from Google Maps linework. | 
| Greensboro,
                NC Guilford Co. United States | Bluford St. / Obemeyer St. (36.07512, -79.77265) | Other Existing | Unknown Unknown | 3 Approaches 0 Driveways 23.1675 | Other (At-Grade) Single-Lane | 2005 | North Carolina A&T University campus redevelopment. ICD estimated from Google Maps linework. | 
| Southern Pines,
                NC Moore Co. United States | S Knoll Rd. / Voit Gilmore Rd. / Felton Capei Ln. (35.18869, -79.43085) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 41.1480 | Other (At-Grade) Single-Lane | 2005 | At Pinecrest High School. Lane line extensions across exits. | 
| Winston-Salem,
                NC Forsyth Co. United States | Turfwood Dr. / Long Creek Dr. (36.19996, -80.32156) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 1 Driveways 29.8771 | Other (At-Grade) Single-Lane | 2002 | Built by developer. ICD estimated from Google Maps linework. | 
| Clemmons,
                NC Forsyth Co. United States | Kinnamon Rd. / Kinnamon Ct. / Bay Meadows Ct. (36.04185, -80.38411) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 32.8345 | Other (At-Grade) Single-Lane | 2007 | Built by developer. ICD estimated from Google Maps linework. | 
| Winston-Salem,
                NC Forsyth Co. United States | Westview Dr. / Buckingham Rd. (36.09549, -80.28940) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 30.4800 | Other (At-Grade) Single-Lane | 2001 | City project. Painted splitter islands. | 
| Concord,
                NC Cabarrus Co. United States | Cabarrus Ave. / Old Charlotte Rd. / Cascade Dr. (35.40025, -80.59350) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 41.8617 | Other (At-Grade) Single-Lane | 2007 | TIP project. ICD estimated from Google Maps linework. | 
| Charlotte,
                NC Mecklenburg Co. United States | Park Rd. / Brookside Ave. / Tremont Ave. (35.20321, -80.85256) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 17.5662 | Other (At-Grade) Single-Lane | 2003 | City- possible traffic calming location. 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. | 
| 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. | 
| Davidson,
                NC Mecklenburg Co. United States | Griffith St. / Davidson Gateway Dr. (35.50277, -80.86375) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 36.9469 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2006 | Built by developer - multilane existing intersection. ICD estimated from Google Maps linework. | 
| Davidson,
                NC Mecklenburg Co. United States | Griffith St. / Jetton St. (35.50210, -80.86121) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 39.8641 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2006 | Built by developer - multilane existing intersection. ICD estimated from Google Maps linework. | 
| Huntersville,
                NC Mecklenburg Co. United States | Stumptown Rd. / Hugh Torance Pkwy. (35.42301, -80.87071) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 58.3951 | Other (At-Grade) Single-Lane | 2004 | Built by developer. ICD estimated from Google Maps linework. | 
| Norwood,
                NC Stanly Co. United States | Cottonville Rd. / S. Stanly School Rd. (35.23319, -80.16761) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 33.1684 | Other (At-Grade) Single-Lane | 2006 | ICD estimated from Google Maps linework. | 
| Waxhaw,
                NC Union Co. United States | Waxhaw-Indian Trl. / Potter Rd. (35.02373, -80.69185) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 33.2538 | Other (At-Grade) Single-Lane | 2006 | Safety location. ICD estimated from Google Maps linework. | 
| Mulberry,
                NC Wilkes Co. United States | Yellowbanks Rd. / Haymeadow Rd. (36.26457, -81.14713) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 36.5760 | Other (At-Grade) Single-Lane | 2002 | Spot safety site. | 
| Gastonia,
                NC Gaston Co. United States | Gaston Day School Rd. / Kendrick Rd. (35.21435, -81.13301) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 32.2003 | Other (At-Grade) Single-Lane | 2005 | Safety problem - did not meet signal warrants. ICD estimated from Google Maps linework. | 
| McAdenville,
                NC Gaston Co. United States | Wesleyan Ave. / Church St. (35.25438, -81.07686) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 75.0970 | Other (At-Grade) Single-Lane | 2006 | ICD estimated from Google Maps linework. | 
| Asheville,
                NC Buncombe Co. United States | Bleachery Blvd. / Wal-Mart parking lot entrance (35.57649, -82.51315) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 36.9130 | Other (At-Grade) Single-Lane | 2006 | Built by developer - entrance to Wal-Mart parking lot. ICD estimated from Google Maps linework. | 
| Waynesville,
                NC Haywood Co. United States | US 23B (Asheville Rd.-N Main St) / Ratcliffe Cove Rd. / Zemery Ln. (35.49899, -82.96632) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 38.8933 | Other (At-Grade) Single-Lane | 2004 | TIP project. Right turn bypass lane. Fatal crash June 5, 2007. ICD estimated from Google Maps linework. | 
| Waynesville,
                NC Haywood Co. United States | Hyatt Creek Rd. / US 23-US 74 SB Ramps (35.46494, -83.01322) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 30.1551 | Freeway Ramps (Grade-Separated) Single-Lane | 2008 | ICD estimated from Google Maps linework. | 
| Columbus,
                NC Polk Co. United States | NC 108 / I-26 EB Ramps (35.24493, -82.20628) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 35.1144 | Freeway Ramps (Grade-Separated) Single-Lane | 2004 | Part of interchange - two-lane bridge. ICD estimated from Google Maps linework. | 
| Columbus,
                NC Polk Co. United States | NC 108 / I-26 WB Ramps (35.24627, -82.20499) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 34.1384 | Freeway Ramps (Grade-Separated) Single-Lane | 2007 | Part of interchange - two-lane bridge. ICD estimated from Google Maps linework. | 
| Concord,
                NC Mecklenburg Co. United States | Christenbury Rd. / Millstream Ridge Dr. (35.38115, -80.74506) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 27.2652 | Other (At-Grade) Single-Lane | 2003 | Developer subdivision. ICD estimated from Google Maps linework. | 
| Mount Vernon,
                WA Skagit Co. United States | SR 538 (E College Way) / SR 9 (48.43002, -122.26460) | Roundabout Existing | Unknown Unknown | 3 Approaches 1 Driveways 38.0389 | Other (At-Grade) Single-Lane | 2007 | Opened July 2007. Rural. Fatal crash December 22, 2011. 11861-05. ICD estimated from Google Maps linework. | 
| North Bend,
                WA King Co. United States | SR 202 / I-90 EB Ramps (47.48782, -121.79730) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 41.9673 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2007 | Opened November 2007. ICD estimated from Google Maps linework. | 
| Olympia,
                WA Thurston Co. United States | Evergreen Pkwy. NW / McCann Plaza (47.06936, -122.97440) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 42.3006 | Other (At-Grade) Single-Lane | 2005 | Entrance to college. Opened November 2005. ICD estimated from Google Maps linework. | 
| Olympia,
                WA Thurston Co. United States | 14th Ave. SE / E Bay Dr. / Henderson Blvd. SE (47.02971, -122.89140) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 33.3772 | Other (At-Grade) Single-Lane | 2005 | Opened July 2005. Southbound right turn bypass lane. ICD estimated from Google Maps linework. | 
| Sammamish,
                WA King Co. United States | Issaquah Pine Lake Rd. / SE 32nd Way (47.57894, -122.02810) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 33.8378 | Other (At-Grade) Single-Lane | 2005 | Opened March 2005. ICD estimated from Google Maps linework. | 
| Sequim,
                WA Clallam Co. United States | N Sequim Ave. / Old Olympic Hwy. (48.09418, -123.10230) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 25.5265 | Other (At-Grade) Single-Lane | 2005 | Opened September 2005. ICD estimated from Google Maps linework. | 
| Sequim,
                WA Clallam Co. United States | W Washington St. / River Rd. (48.07758, -123.13480) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 31.9184 | Other (At-Grade) Single-Lane | 2004 | Opened June 2004. Northbound right turn bypass lane. ICD estimated from Google Maps linework. | 
| Spokane,
                WA Spokane Co. United States | E. Sharp Ave. / N. Columbus St. (47.66950, -117.39490) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 22.5195 | Other (At-Grade) Single-Lane | 1992 | September 1992. ICD estimated from Google Maps linework. | 
| Tacoma,
                WA Pierce Co. United States | 49th Ave. NE / 33rd St. NE / Norpoint Way NE (47.28643, -122.38220) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 25.9249 | Other (At-Grade) Single-Lane | 2004 | Opened December 2004. ICD estimated from Google Maps linework. | 
| Tacoma,
                WA Pierce Co. United States | S Tyler St. / S 66th St. (47.19746, -122.49280) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 25.9685 | Other (At-Grade) Single-Lane | 2005 | Opened July 2005. Fatal crash August 12. 2006. 11861-05. ICD estimated from Google Maps linework. | 
| Vancouver,
                WA Clark Co. United States | W. 6th St. / Esther St. (45.62572, -122.67610) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 29.2336 | Other (At-Grade) Single-Lane | 2005 | Opened June 2005. ICD estimated from Google Maps linework. | 
| Vancouver,
                WA Clark Co. United States | NE 137th Ave. / NE 49th St. (45.65733, -122.53190) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 40.0691 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2008 | Opened January 2008. ICD estimated from Google Maps linework. | 
| West Richland,
                WA Benton Co. United States | Bombing Range Rd. / Keene Rd. (46.26271, -119.34237) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 45.7200 | Other (At-Grade) Single-Lane | 2005 | Free-flow bypass lane on east leg. Opened October 2005. Plans underway to replace with signalized intersection: https://www.tricitiesbusinessnews.com/2021/12/wr-traffic-circle/ | 
| White Center,
                WA King Co. United States | 10th Ave. SW / SW 100th St. (47.51379, -122.34770) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 12.1000 | Other (At-Grade) Single-lane w/ Traversable Central Island | 2006 | Opened April 2006. Previously controlled by two-way stop ICD estimated from Google Maps linework. | 
| White Center,
                WA King Co. United States | 9th Ave. SW / SW 100th St. (47.51379, -122.34640) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 14.5200 | Other (At-Grade) Single-lane w/ Traversable Central Island | 2006 | Opened April 2006. Previously controlled by two-way stop Functional Class: Neighborhood Collector ICD estimated from Google Maps linework. | 
| Woodinville,
                WA King Co. United States | 136th Ave. NE / Woodinville High School Entrance (47.77161, -122.15860) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 25.6862 | Other (At-Grade) Single-Lane | 2003 | Opened October 2003. ICD estimated from Google Maps linework. | 
| University Place,
                WA Pierce Co. United States | 64th St W / Park Entrance (47.19891, -122.56530) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 28.4022 | Other (At-Grade) Single-Lane | 2004 | Completed before July 2004. ICD estimated from Google Maps linework. | 
| University Place,
                WA Pierce Co. United States | Cirque Dr. W / Alameda Ave. W / 56th St. W (47.20639, -122.51600) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 54.3624 | Other (At-Grade) Single-Lane | 2002 | Completed December 2002. ICD estimated from Google Maps linework. | 
| University Place,
                WA Pierce Co. United States | 40th St. W / Drexler Dr. W (47.22084, -122.53430) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 31.6351 | Other (At-Grade) Single-Lane | 2006 | Completed June 2006. ICD estimated from Google Maps linework. | 
| Lacey,
                WA Thurston Co. United States | Vashon Dr. NE / Columbia Way NE (47.09724, -122.77000) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 26.0175 | Other (At-Grade) Single-Lane | 2005 | Opened December 2005. ICD estimated from Google Maps linework. | 
| Lacey,
                WA Thurston Co. United States | Britton Pkwy. NE / Gateway Blvd. (47.06858, -122.78590) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 42.3012 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2007 | Opened September 2007. ICD estimated from Google Maps linework. | 
| Fruitland,
                MD Wicomico Co. United States | MD 513 Cedar Ln. / Division St. (38.32094, -75.61021) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 29.0471 | Other (At-Grade) Single-Lane | 2007 | ICD estimated from Google Maps linework. | 
| Saint Leonard,
                MD Calvert Co. United States | Calvert Beach Rd. / MD 765 Saint Leonard Rd. (38.47316, -76.50607) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 25.2460 | Other (At-Grade) Single-Lane | 2002 | ICD estimated from Google Maps linework. | 
| Annapolis Junction,
                MD Anne Arundel Co. United States | Guilford Rd. / MD 32 WB Ramps (39.12294, -76.78472) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 32.4293 | Freeway Ramps (Grade-Separated) Single-Lane | 2002 | Bypass lanes on all legs. ICD estimated from Google Maps linework. | 
| Hampstead,
                MD Carroll Co. United States | MD 88 / MD 833 (39.60434, -76.83682) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 34.0470 | Other (At-Grade) Single-Lane | 2004 | ICD estimated from Google Maps linework. | 
| Chaptico,
                MD St. Marys Co. United States | MD 234 / MD 238 (38.36791, -76.78179) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 35.5833 | Other (At-Grade) Single-Lane | 2007 | ICD estimated from Google Maps linework. | 
| Clarksville,
                MD Howard Co. United States | Brighton Dam Rd. / Ten Oaks Rd. (39.20491, -76.95455) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 35.1680 | Other (At-Grade) Single-Lane | 2008 | ICD estimated from Google Maps linework. | 
| Deale,
                MD Anne Arundel Co. United States | MD 256 / MD 258 (38.79327, -76.54586) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 34.4423 | Other (At-Grade) Single-Lane | 2006 | ICD estimated from Google Maps linework. | 
| Bel Air,
                MD Harford Co. United States | Constant Friendship Blvd. / BJ's (39.45546, -76.31870) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 29.5092 | Other (At-Grade) Single-Lane | 1995 | Functional Class: Local ICD estimated from Google Maps linework. | 
| Hughesville,
                MD Charles Co. United States | MD 231 / MD 5 NB Ramps (38.53426, -76.77790) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 54.1863 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2005 | ICD estimated from Google Maps linework. | 
| Hughesville,
                MD Charles Co. United States | MD 231 / MD 5 SB Ramps (38.53381, -76.77969) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 58.8579 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2005 | ICD estimated from Google Maps linework. | 
| Odenton,
                MD Anne Arundel Co. United States | MD 175 / MD 677 / Higgins Dr. (39.07831, -76.68481) | Roundabout Existing | All-Way Yield Unknown | 5 Approaches 0 Driveways 57.9120 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2004 | Reduced from two lanes to one lane in 2010. 21442 | 
| Loveland,
                CO Larimer Co. United States | Monte Vista Dr. East / W. 22nd St. (40.41451, -105.13180) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 24.5519 | Other (At-Grade) Single-Lane | 2000 | ICD estimated from Google Maps linework. |