| City, 
                State County Country | Intersection (Lat, Lng) | Type Status | Control Type / Other Control Type | Approaches / Driveways / ICD (m) | Functional Class / LaneType | Year Completed | Comments | 
|---|---|---|---|---|---|---|---|
| Nantucket,
                MA Nantucket Co. United States | Sparks Ave / Hooper Farm Rd / Lower Pleasant St (41.27122, -70.09086) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 27.8272 | Other (At-Grade) Single-Lane | 2007 | ICD estimated from Google Maps linework. | 
| Bargersville,
                IN Johnson Co. United States | CR 144 / Whiteland Rd. (39.54763, -86.20309) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 46.0471 | Other (At-Grade) Single-Lane | 2013 | ICD estimated from Google Maps linework. | 
| Bargersville,
                IN Johnson Co. United States | Whiteland Rd. / Morgantown Rd. (39.54793, -86.19682) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.6003 | Other (At-Grade) Single-Lane | 2013 | ICD estimated from Google Maps linework. | 
| Mooresville,
                IN Morgan Co. United States | IN-144 / Kitchen Rd. (39.58146, -86.31707) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 41.4222 | Other (At-Grade) Single-Lane | 2014 | ICD estimated from Google Maps linework. | 
| Greenwood,
                IN Johnson Co. United States | Morgantown Rd. / Fairview Rd. (39.61980, -86.19641) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 34.0394 | Other (At-Grade) Single-Lane | 2010 | ICD estimated from Google Maps linework. | 
| Indianapolis,
                IN Marion Co. United States | E Edgewood Ave. / McFarland Rd. (39.67987, -86.11095) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 28.4947 | Other (At-Grade) Single-Lane | 2014 | ICD estimated from Google Maps linework. | 
| Indianapolis,
                IN Marion Co. United States | Gray Rd. / Edgewood Ave. (39.68025, -86.09677) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 31.2521 | Other (At-Grade) Single-Lane | 2014 | ICD estimated from Google Maps linework. | 
| Plainfield,
                IN Hendricks Co. United States | E County Road 600 S / Sugar Grove Rd. (39.67425, -86.39889) | Roundabout Existing | All-Way Yield None | 3 Approaches 1 Driveways 54.8640 | Other (At-Grade) Single-Lane | 2013 | |
| Avon,
                IN Hendricks Co. United States | E County Road 200 S / S County Road 200 S (39.73367, -86.38084) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 49.5972 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2010 | ICD estimated from Google Maps linework. | 
| Avon,
                IN Hendricks Co. United States | N County Road 800 E / County Rd 100 (39.77772, -86.38114) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 44.9761 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2009 | Year Completed estimated (2008-2010). ICD estimated from Google Maps linework. | 
| Plainfield,
                IN Hendricks Co. United States | S County Road 800 E / E County Road 200 N (39.79270, -86.38114) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 40.3779 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2012 | Year completed estimated (2010-2012). ICD estimated from Google Maps linework. | 
| Brownsburg,
                IN Hendricks Co. United States | IN-267 (S Green Street) / E County Road 300 N (39.80671, -86.40066) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 49.5446 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2016 | ICD estimated from Google Maps linework. | 
| Logansport,
                IN Cass Co. United States | Chase Rd. / Davis Rd. / E Perrysburg Rd. (40.77079, -86.33787) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 36.1799 | Other (At-Grade) Single-Lane | 2014 | Year completed estimated (2012-2014). ICD estimated from Google Maps linework. | 
| Monticello,
                IN White Co. United States | E County Rd. 150 S / S 6th St. / S County Rd. 500 E / Gordon Rd. (40.73002, -86.77565) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 32.5819 | Other (At-Grade) Single-Lane | 2010 | ICD estimated from Google Maps linework. | 
| Cary,
                NC Wake Co. United States | Cornerstone Dr. / Valleystone Dr. (35.79087, -78.85090) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 34.8764 | Other (At-Grade) Single-Lane | 2006 | Wide circulatory roadway with no truck apron. ICD estimated from Google Maps linework. | 
| Greenfield,
                IN Hancock Co. United States | W 100 N / W McKenzie Rd. / N Meridian Rd. (39.79893, -85.80213) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 36.7039 | Other (At-Grade) Single-Lane | 2011 | Year completed estimated (2010-2012). ICD estimated from Google Maps linework. | 
| Greenfield,
                IN Hancock Co. United States | W McKenzie Rd. / N Franklin St. (39.79925, -85.78433) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 44.0445 | Other (At-Grade) Single-Lane | 2010 | ICD estimated from Google Maps linework. | 
| Greenfield,
                IN Hancock Co. United States | E McKenzie Rd. / Apple St. (39.79968, -85.75592) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 40.3738 | Other (At-Grade) Single-Lane | 2010 | ICD estimated from Google Maps linework. | 
| Cary,
                NC Wake Co. United States | E Chatham St. / E Durham Rd. (35.79015, -78.77221) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 24.2199 | Other (At-Grade) Single-Lane | 2013 | ICD estimated from Google Maps linework. | 
| Fishers,
                IN Hamilton Co. United States | E 96th St. / Cumberland Rd. / Mud Creek Rd. (39.92701, -85.99493) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 48.7680 | Other (At-Grade) Single-Lane | 2016 | On boundary between Fishers and Indianapolis and between Hamilton County and Marion County. | 
| Fishers,
                IN Hamilton Co. United States | E 96th St. / Fall Creek Rd. (39.92678, -85.97557) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 57.9120 | Other (At-Grade) Single-Lane | 2011 | On boundary between Fishers and Indianapolis and between Hamilton County and Marion County. Year completed estimated (2010-2012). | 
| Fishers,
                IN Hamilton Co. United States | Fall Creek Rd. / Brooks School Rd. (39.93465, -85.94744) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 36.5760 | Other (At-Grade) Single-Lane | 2013 | Right-turn bypass lane on north leg. | 
| Cary,
                NC Wake Co. United States | Lake Dr. / Allen Lewis Dr. (35.80221, -78.79631) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 33.9027 | Other (At-Grade) Single-Lane | 2006 | ICD estimated from Google Maps linework. | 
| Noblesville,
                IN Hamilton Co. United States | Olio Rd. / Tegler Rd. / E 141st St. (39.99437, -85.91898) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 43.9192 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2010 | ICD estimated from Google Maps linework. | 
| Carmel,
                IN Hamilton Co. United States | Range Line Rd. / Carmel Dr. (39.96149, -86.12697) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 48.7680 | Other (At-Grade) Multilane (2 Lane, 2x2 max) | 2016 | |
| Carmel,
                IN Hamilton Co. United States | N Pennsylvania St. / E 116th St. (39.95630, -86.15514) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 33.8733 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2016 | ICD estimated from Google Maps linework. | 
| Carmel,
                IN Hamilton Co. United States | E 111th St. / N Pennsylvania St. (39.94898, -86.15559) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 54.8640 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2015 | |
| Cary,
                NC Wake Co. United States | Macedonia Lake Dr. / Crossroads Manor Ct. (35.75036, -78.74228) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 41.6791 | Other (At-Grade) Single-Lane | 2007 | Approximately 210 ft of storage between roundabout and adjacent signalized intersection. ICD estimated from Google Maps linework. | 
| Carmel,
                IN Hamilton Co. United States | W 106th St. / Illinois St. (39.94160, -86.16133) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 50.2920 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2015 | Roundabout opened in 2015; however, work continued through mid-2016 on the east leg of the roundabout associated with construction of an adjacent roundabout at the 106th Street/Meridian Street interchange. | 
| Carmel,
                IN Hamilton Co. United States | W 96th St. / N Augusta Dr. (39.92622, -86.22490) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 45.7200 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2011 | On boundary between Carmel and Indianapolis and between Hamilton County and Marion County. | 
| Carmel,
                IN Hamilton Co. United States | W 96th St. / Shelbourne Rd. (39.92613, -86.22202) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 45.7200 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2011 | On boundary between Carmel and Indianapolis and between Hamilton County and Marion County. | 
| Carmel,
                IN Hamilton Co. United States | E 116th St. / Gray Rd. (39.95665, -86.08932) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 51.8160 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2016 | |
| Carmel,
                IN Hamilton Co. United States | Hazel Dell Pkwy. / Cherry Creek St. / Avian Way (39.99229, -86.07047) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 34.7705 | Other (At-Grade) Single-Lane | 2010 | ICD estimated from Google Maps linework. | 
| Indianapolis,
                IN Marion Co. United States | Castle Creek Pkwy. N Dr. / Nelson B Klein Pkwy. (39.91681, -86.06385) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 1 Driveways 36.6409 | Other (At-Grade) Single-Lane | 2010 | Year completed estimated (2008-2010). ICD estimated from Google Maps linework. | 
| Fort Worth,
                TX Denton Co. United States | Litsey Rd. / Cleveland Gibbs Rd. (33.00855, -97.26864) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 51.8160 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2013 | . | 
| Keller,
                TX Tarrant Co. United States | Reata Rd. / Newton Ranch Dr. (32.93879, -97.21864) | Traffic Calming Circle Existing | All-Way Yield None | 4 Approaches 0 Driveways 30.4800 | Other (At-Grade) Single-Lane | 2008 | |
| Keller,
                TX Tarrant Co. United States | Marshall Ridge Pkwy. / Ridge Point Pkwy. (32.96333, -97.24228) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 45.7200 | Other (At-Grade) Single-Lane | 2008 | |
| Fort Worth,
                TX Tarrant Co. United States | Rosedale St. / Ayers Ave. / E Ave. (32.73129, -97.27105) | Roundabout Existing | All-Way Yield None | 5 Approaches 0 Driveways 48.7680 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2016 | . | 
| Fort Worth,
                TX Tarrant Co. United States | E Rosedale St. / Mitchell Blvd. (32.73075, -97.29370) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 42.6710 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2015 | . | 
| Fort Worth,
                TX Tarrant Co. United States | Edwards Ranch Rd. / Clearfork Main St. (32.70876, -97.39592) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 53.3400 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2010 | . | 
| Fort Worth,
                TX Tarrant Co. United States | Basswood Blvd. / Robert W Downing Rd. (32.87072, -97.33296) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 42.6710 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2015 | . | 
| Fort Worth,
                TX Tarrant Co. United States | Basswood Blvd. / Horseman Rd. (32.87252, -97.32725) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 42.6710 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2017 | . | 
| Fort Worth,
                TX Tarrant Co. United States | Park Vista Blvd. / Timberland Blvd. (32.95550, -97.26479) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 51.8160 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2016 | . | 
| (unincorporated),
                MI Oakland Co. United States | W 14 Mile Rd. / Orchard Lake Rd. (42.52846, -83.36020) | Roundabout Existing | All-Way Yield Pedestrian Hybrid Beacon (PHB, HAWK) | 4 Approaches 0 Driveways 46.6480 | Other (At-Grade) Multilane (3+ Lane) | 2015 | ICD estimated from Google Maps linework. | 
| New Hudson,
                MI Oakland Co. United States | Grand River Ave. / New Hudson Dr. (42.51286, -83.62158) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 38.7363 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2008 | ICD estimated from Google Maps linework. | 
| New Hudson,
                MI Oakland Co. United States | Grand River Ave. / Lyon Center Dr. E (42.50967, -83.60697) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 42.2599 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2009 | ICD estimated from Google Maps linework. | 
| New Hudson,
                MI Oakland Co. United States | New Hudson Dr. / W Pontiac Trl. (42.50909, -83.62100) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 23.7714 | Other (At-Grade) Single-Lane | 2010 | Yield controlled right-turn bypass lane on north leg. ICD estimated from Google Maps linework. | 
| Highland,
                MI Oakland Co. United States | White Lake Rd. / Duck Lake Rd. N (42.69157, -83.57226) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 30.7247 | Other (At-Grade) Single-Lane | 2009 | ICD estimated from Google Maps linework. | 
| Highland,
                MI Oakland Co. United States | White Lake Rd. / Rose Center Rd. E (42.69312, -83.57431) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 35.9909 | Other (At-Grade) Single-Lane | 2009 | ICD estimated from Google Maps linework. | 
| Rochester Hills,
                MI Oakland Co. United States | W Hamlin Rd. / S Livernois Rd. (42.65198, -83.15281) | Roundabout Existing | All-Way Yield Pedestrian Hybrid Beacon (PHB, HAWK) | 4 Approaches 0 Driveways 33.3795 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2010 | ICD estimated from Google Maps linework. | 
| Rochester Hills,
                MI Oakland Co. United States | W Tienken Rd. / N Livernois Rd. (42.69527, -83.15397) | Roundabout Existing | All-Way Yield Pedestrian Hybrid Beacon (PHB, HAWK) | 4 Approaches 0 Driveways 46.5232 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2014 | ICD estimated from Google Maps linework. | 
| Cary,
                NC Wake Co. United States | McCrimmon Pkwy. / Residence Club Dr. / Sand Pine Dr. (35.83006, -78.90811) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 36.7958 | Other (At-Grade) Single-Lane | 2005 | ICD estimated from Google Maps linework. | 
| Cary,
                NC Wake Co. United States | Portrait Dr. / (unknown) (35.79986, -78.79715) | Other Existing | One-Way/Two-Way Stop Unknown | 4 Approaches 0 Driveways 30.9977 | Other (At-Grade) Single-Lane | 2006 | ICD estimated from Google Maps linework. | 
| Cary,
                NC Wake Co. United States | Searstone Dr. / Winston Hill Dr. / Walker Stone Dr. (35.78815, -78.84622) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 32.9399 | Other (At-Grade) Single-Lane | 2013 | Approximately 100 feet from adjacent signalized intersection. ICD estimated from Google Maps linework. | 
| Cary,
                NC Wake Co. United States | Tryon Manor Dr. / Tryon Village Dr. (35.74686, -78.74579) | Other Existing | One-Way/Two-Way Stop Unknown | 4 Approaches 0 Driveways 36.8343 | Other (At-Grade) Single-Lane | 2006 | Uncontrolled N-S legs, stop-controlled E leg. ICD estimated from Google Maps linework. | 
| Niagara Falls,
                NY Niagara Co. United States | Robert Moses State Pkwy / John Daly Blvd. (43.08093, -79.05098) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 45.3609 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2015 | ICD estimated from Google Maps linework. | 
| Buffalo,
                NY Erie Co. United States | Audubon Pkwy. / Lee Rd. (43.00547, -78.78589) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 38.4296 | Other (At-Grade) Single-Lane | 2011 | ICD estimated from Google Maps linework. | 
| Buffalo,
                NY Erie Co. United States | Aero Dr. / S. Youngs Rd. (42.94547, -78.72490) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 30.5988 | Other (At-Grade) Single-Lane | 2010 | Year completed estimated. ICD estimated from Google Maps linework. | 
| Buffalo,
                NY Erie Co. United States | Aero Dr. / Holtz Dr. (42.94093, -78.71780) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 27.1038 | Other (At-Grade) Single-Lane | 2010 | ICD estimated from Google Maps linework. | 
| Brockport,
                NY Monroe Co. United States | Rte 19 (Main St.-Lake Rd.) / West St. / East St. (43.22019, -77.93696) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 41.7763 | Other (At-Grade) Single-Lane | 2012 | ICD estimated from Google Maps linework. | 
| Rochester,
                NY Monroe Co. United States | E River Rd. / Murlin Dr. / Kendrick Rd. (43.11413, -77.63435) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.2334 | Other (At-Grade) Single-Lane | 2013 | Converted from three-way intersection into four-way intersection. ICD estimated from Google Maps linework. | 
| Rochester,
                NY Monroe Co. United States | Broad St. / Court St. / Broadway St. / Woodbury Blvd. (43.15493, -77.60059) | Roundabout Existing | All-Way Yield Unknown | 5 Approaches 0 Driveways 40.9497 | Other (At-Grade) Single-Lane | 2013 | ICD estimated from Google Maps linework. | 
| Canandaigua,
                NY Ontario Co. United States | CR 10 / CR 46 (42.88665, -77.24563) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 31.5031 | Other (At-Grade) Single-Lane | 2013 | ICD estimated from Google Maps linework. | 
| Canandaigua,
                NY Ontario Co. United States | CR 10 / CR 4 (42.90187, -77.24570) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 33.2451 | Other (At-Grade) Single-Lane | 2013 | ICD estimated from Google Maps linework. | 
| Utica,
                NY Oneida Co. United States | Marcy-SUNY IT Pkwy. / Technology Dr. (43.13456, -75.23939) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 57.5230 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2014 | ICD estimated from Google Maps linework. | 
| Marcy,
                NY Oneida Co. United States | Marcy-SUNY IT Pkwy. / Edic Rd. (43.13954, -75.23764) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 44.4460 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2014 | ICD estimated from Google Maps linework. | 
| Utica,
                NY Oneida Co. United States | Genesee St. / State St. / Park Ave. (43.09602, -75.24228) | Roundabout Existing | All-Way Yield Unknown | 5 Approaches 0 Driveways 29.6518 | Other (At-Grade) Single-Lane | 2013 | Year completed estimated (2011-2015) ICD estimated from Google Maps linework. | 
| Queensbury,
                NY Warren Co. United States | Aviation Rd. / Dixon Rd. / Farr Ln. (43.33074, -73.69979) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 33.0129 | Other (At-Grade) Single-Lane | 2014 | ICD estimated from Google Maps linework. | 
| Queensbury,
                NY Warren Co. United States | (unknown) / (unknown) (43.33112, -73.68898) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 24.3251 | Other (At-Grade) Single-Lane | 2011 | On high school campus. ICD estimated from Google Maps linework. | 
| East Greenbush,
                NY Rensselaer Co. United States | US 4 (Troy Rd) / Red Mill Rd. / Luther Rd. (42.61947, -73.70200) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 42.1856 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2012 | ICD estimated from Google Maps linework. | 
| Rensselaer,
                NY Rensselaer Co. United States | US 4 (Troy Rd.) / Mannix Rd. (42.63111, -73.70100) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 39.5416 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2014 | ICD estimated from Google Maps linework. | 
| Wantagh,
                NY Nassau Co. United States | Ocean Pkwy. / Jones Beach Causeway (40.59647, -73.50811) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 106.1035 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2009 | Converted rotary. ICD estimated from Google Maps linework. | 
| Patchogue,
                NY Suffolk Co. United States | Waverly Ave. / Holbrook Rd. (40.76705, -73.02555) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 27.1365 | Other (At-Grade) Single-Lane | 2010 | ICD estimated from Google Maps linework. | 
| Ellicott City,
                MD Howard Co. United States | Rogers Ave / Old Frederick Road (39.29904, -76.81308) | Roundabout Existing | All-Way Yield None | 3 Approaches 1 Driveways 26.8026 | Other (At-Grade) Single-Lane | 2004 | ICD estimated from Google Maps linework. Old Frederick Road is MD 985A but roundabout may be locally maintained and not state maintained | 
| Washington,
                DC City of Washington Co. United States | Brentwood Rd NE / Bryant Rd NE / 13th St NE (38.92115, -76.98915) | Roundabout Existing | All-Way Yield None | 4 Approaches 1 Driveways 39.0264 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2010 | First true roundabout in District of Columbia ICD estimated from Google Maps linework. | 
| Gloversville,
                NY Fulton Co. United States | S Kingsboro Ave. / Hales Mills Rd. (43.03311, -74.34221) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 37.5392 | Other (At-Grade) Single-Lane | 2012 | ICD estimated from Google Maps linework. | 
| Amsterdam,
                NY Fulton Co. United States | Rte 29 / Rte 30 (43.04745, -74.21695) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 41.0217 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2011 | ICD estimated from Google Maps linework. | 
| Schenectady,
                NY Schenectady Co. United States | Rte 29 / Glenridge Rd. (42.86709, -73.90634) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 36.7653 | Other (At-Grade) Single-Lane | 2012 | ICD estimated from Google Maps linework. | 
| Schenectady,
                NY Schenectady Co. United States | Curry Rd. / Carman Rd. / Hamburg St. (42.76513, -73.93874) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 41.2100 | Other (At-Grade) Single-Lane | 2010 | ICD estimated from Google Maps linework. | 
| Colonie,
                NY Albany Co. United States | Johnson Rd. / Boght Rd. / St. Agnes Hwy (42.76550, -73.73207) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 30.6881 | Other (At-Grade) Single-Lane | 2008 | ICD estimated from Google Maps linework. | 
| Watervliet,
                NY Albany Co. United States | Sutherland Dr. / Beacon Dr. / Mahogany Dr. (42.72840, -73.72327) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 32.4611 | Other (At-Grade) Single-Lane | 2010 | ICD estimated from Google Maps linework. | 
| Watervliet,
                NY Albany Co. United States | Billys Way / Beryl Way (42.73320, -73.72641) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 50.0038 | Other (At-Grade) Unknown | 2005 | ICD estimated from Google Maps linework. | 
| Pleasant Valley,
                NY Dutchess Co. United States | Rte 55 / Stringham Rd. (41.67121, -73.79673) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 26.7639 | Other (At-Grade) Single-Lane | 2014 | Entrance to high school. ICD estimated from Google Maps linework. | 
| Lagrangeville,
                NY Dutchess Co. United States | Rte 55 / (unknown) (41.67198, -73.80201) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 26.7636 | Other (At-Grade) Single-Lane | 2014 | ICD estimated from Google Maps linework. | 
| Pleasant Valley,
                NY Dutchess Co. United States | Rte 55 / Rte 47 (41.67244, -73.80512) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 28.5476 | Other (At-Grade) Single-Lane | 2014 | ICD estimated from Google Maps linework. | 
| Huntington,
                NY Suffolk Co. United States | New York Ave. / Park Ave. / Creek Rd. (40.88273, -73.41970) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 33.4100 | Other (At-Grade) Single-Lane | 2013 | ICD estimated from Google Maps linework. | 
| Huntington,
                NY Suffolk Co. United States | New York Ave. / Grist Mill Ln. / CR 35 (40.88407, -73.41909) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 31.6034 | Other (At-Grade) Single-Lane | 2012 | ICD estimated from Google Maps linework. | 
| Middle Island,
                NY Suffolk Co. United States | Miller Place Yaphank Rd. / Whiskey Rd. (40.90476, -72.95687) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 42.4256 | Other (At-Grade) Single-Lane | 2012 | ICD estimated from Google Maps linework. | 
| Riverhead,
                NY Suffolk Co. United States | Quogue Riverhead Rd. / Old Riverhead Rd. (40.87822, -72.63782) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 39.7335 | Other (At-Grade) Single-Lane | 2012 | ICD estimated from Google Maps linework. | 
| Water Mill,
                NY Suffolk Co. United States | Scuttlehole Rd. / Mitchells Ln. (40.95021, -72.32856) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 26.1595 | Other (At-Grade) Single-Lane | 2005 | Year completed estimated (2004-2006). ICD estimated from Google Maps linework. | 
| Shelter Island,
                NY Suffolk Co. United States | Rte 114 / Bateman Rd. / School St. (41.06829, -72.33887) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 19.8096 | Other (At-Grade) Single-Lane | 2010 | Converted from old traffic circle. ICD estimated from Google Maps linework. | 
| Shirley,
                NY Suffolk Co. United States | Lockwood Dr. / (unknown) (40.82729, -72.87614) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 29.8231 | Other (At-Grade) Single-Lane | 2008 | ICD estimated from Google Maps linework. | 
| Brookfield,
                WI Waukesha Co. United States | North Ave. (CTH M) / Brookfield Rd. (43.06123, -88.14588) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 17.4521 | Other (At-Grade) Single-Lane | 2015 | ICD estimated from Google Maps linework. | 
| (unincorporated),
                FL Lake Co. United States | CR 455 / CR 561 (28.66685, -81.73738) | Roundabout Existing | One-Way/Two-Way Stop None | 4 Approaches 0 Driveways 55.5404 | Other (At-Grade) Single-Lane | 2015 | ICD estimated from Google Maps linework. | 
| Polk City,
                FL Polk Co. United States | Deen Still Rd. / Commonwealth Ave. (28.25849, -81.82458) | Roundabout Existing | One-Way/Two-Way Stop None | 4 Approaches 0 Driveways 38.9236 | Other (At-Grade) Single-Lane | 2016 | ICD estimated from Google Maps linework. | 
| Lake Wales,
                FL Polk Co. United States | US 27 / Hunt Brothers Rd. (27.87209, -81.58137) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 30.6176 | Other (At-Grade) Single-Lane | 2015 | ICD estimated from Google Maps linework. | 
| Kissimmee,
                FL Osceola Co. United States | Martin Luther King Blvd. / Dyer Blvd. (28.29608, -81.43683) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 43.1163 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2015 | Yield-controlled right-turn bypass lane in NE quadrant. 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. |