| City, 
                State County Country | Intersection (Lat, Lng) | Type Status | Control Type / Other Control Type | Approaches / Driveways / ICD (m) | Functional Class / LaneType | Year Completed | Comments | 
|---|---|---|---|---|---|---|---|
| Ottawa,
                ON Ottawa Canada | Longfields Dr. / Beatrice Dr. / Mountshannon Dr. (45.28857, -75.73400) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 26.0479 | Other (At-Grade) Single-Lane | 2014 | ICD estimated from Google Maps linework. | 
| Ottawa,
                ON Ottawa Canada | Goulbourn Forced Rd. / Badgeley Ave. (45.32371, -75.92870) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 26.0317 | Other (At-Grade) Single-Lane | 2011 | ICD estimated from Google Maps linework. | 
| Ottawa,
                ON Ottawa Canada | King Edward Ave. / Union St. (45.43738, -75.69400) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 20.9512 | Other (At-Grade) Single-Lane | 2013 | ICD estimated from Google Maps linework. | 
| Ottawa,
                ON Ottawa Canada | Anderson Rd. / Weir Rd. / Renaud Rd. (45.41979, -75.56765) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.4005 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2015 | ICD estimated from Google Maps linework. | 
| Ottawa,
                ON Ottawa Canada | Old Montreal Rd. / St.Joseph Blvd. / Trim Rd. (45.48900, -75.47775) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 34.3285 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2015 | ICD estimated from Google Maps linework. | 
| Ottawa,
                ON Ottawa Canada | Brian Coburn Blvd. / Portobello Blvd. (45.45470, -75.46491) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 34.3494 | Other (At-Grade) Single-Lane | 2016 | Right-turn-only lane on north leg. ICD estimated from Google Maps linework. | 
| Ottawa,
                ON Ottawa Canada | Brian Coburn Blvd. / Fern Casey St. (45.44112, -75.50947) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 37.7096 | Other (At-Grade) Single-Lane | 2016 | ICD estimated from Google Maps linework. | 
| Roanoke,
                VA Roanoke Co. United States | VA 687 / Penn Forest Blvd / Colonial Ave (37.22386, -80.00757) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 1 Driveways 25.6775 | Other (At-Grade) Single-Lane | 2010 | ICD estimated from Google Maps linework. | 
| Richmond,
                VA Richmond Co. United States | 9 Mile Road / 25th Street / Fairmount Avenue (37.54049, -77.41056) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 26.5163 | Other (At-Grade) Single-Lane | 2015 | ICD estimated from Google Maps linework. | 
| Richmond,
                VA Richmond Co. United States | Fairfield Avenue / 23rd Street (37.54821, -77.40652) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 29.3543 | Other (At-Grade) Single-Lane | 2015 | ICD estimated from Google Maps linework. | 
| Richmond,
                VA Richmond Co. United States | Brookland Park Blvd. / Meadowbridge Rd. / 2nd Ave. (37.56990, -77.41815) | Roundabout Existing | All-Way Yield Unknown | 6 Approaches 0 Driveways 30.2924 | Other (At-Grade) Single-Lane | 2016 | ICD estimated from Google Maps linework. | 
| Richmond,
                VA Richmond Co. United States | Belmont Rd. / W Belmont Rd. (37.46750, -77.49435) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 26.5422 | Other (At-Grade) Single-Lane | 2017 | ICD estimated from Google Maps linework. | 
| Purcellville,
                VA Loudoun Co. United States | VA 287 / Main Street (39.13559, -77.69229) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 38.9082 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2013 | ICD estimated from Google Maps linework. | 
| St George's, Bermuda | Blue Hole Hill / Kindley Field Rd. / Cahow Way (32.35955, -64.70547) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 34.3011 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Idaho Falls,
                ID Bonneville Co. United States | Bridgeport Dr. / River Walk Dr. (43.48855, -112.04801) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 29.4610 | Other (At-Grade) Single-Lane | 2007 | Originally built without splitter islands. Splitter islands added to north and west legs in 2016. ICD estimated from Google Maps linework. | 
| Bowmanville,
                ON Durham Canada | Holt Rd. / Energy Dr. (43.88136, -78.72109) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 47.3464 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2016 | ICD estimated from Google Maps linework. | 
| Whitchurch-Stouffville,
                ON York Canada | Ninth Line / Bayberry St. / Baker Hill Blvd. (43.98000, -79.25804) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 32.6579 | Other (At-Grade) Single-Lane | 2016 | ICD estimated from Google Maps linework. | 
| Welland,
                ON Niagara Canada | Hwy 27 (E Main St.) / Hwy 406 (42.99357, -79.22298) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 57.6555 | Other (At-Grade) Multilane (3+ Lane) | 2013 | Year Completed estimated (2010-2015). ICD estimated from Google Maps linework. | 
| London,
                ON Middlesex Canada | Sunningdale Rd. W / Wonderland Rd. N (43.03011, -81.31690) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 50.6368 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2014 | Year Completed estimated (2013-2015). ICD estimated from Google Maps linework. | 
| High Point,
                NC Guilford Co. United States | Lindsay St. / N Elm St. / W Parkway Ave. (35.96684, -80.01495) | Other Existing | All-Way Yield None | 4 Approaches 0 Driveways 37.6989 | Other (At-Grade) Single-Lane | 2013 | Non-circular. Pedestrian access to center island. ICD estimated from Google Maps linework. | 
| Fayetteville,
                NC Cumberland Co. United States | Coalition Blvd. / Civil Ct. (35.10245, -78.96667) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 49.8326 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2011 | ICD estimated from Google Maps linework. | 
| Picton,
                ON Prince Edward Canada | Loyalist Pkwy. / Sandy Hook Rd. (43.99449, -77.17838) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 40.3828 | Other (At-Grade) Single-Lane | 2009 | This was the first highway roundabout in Ontario. Constructed in 2009. https://www.auto123.com/en/news/ontarios-first-roundabout-intersection-opens-near-picton/5652/ ICD estimated from Google Maps linework. | 
| Hobart, Village of,
                WI Brown Co. United States | N Packerland Dr. / Badgerland Dr. (44.54245, -88.09075) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 45.9667 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2013 | Year Completed estimated (2011-2015). ICD estimated from Google Maps linework. | 
| Missoula,
                MT Missoula Co. United States | Miller Creek Rd. / Lower Miller Creek Rd. / Upper Miller Creek Rd. (46.82569, -114.05048) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 39.2248 | Other (At-Grade) Single-Lane | 2010 | Year Completed estimated (2009-2011). ICD estimated from Google Maps linework. | 
| Green Bay,
                WI Brown Co. United States | Shawano Ave. / Duck Creek Pkwy. (44.54055, -88.08010) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 40.0093 | Other (At-Grade) Multilane (3+ Lane) | 2013 | Year Completed estimated (2011-2015). ICD estimated from Google Maps linework. | 
| Howard,
                WI Brown Co. United States | Cardinal Ln. / Duck Creek Pkwy. / Elmhurst Ave. (44.54540, -88.08519) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 42.5596 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2013 | Year Completed estimated (2011-2015). ICD estimated from Google Maps linework. | 
| Bozeman,
                MT Gallatin Co. United States | W College St. / S 11th Ave. (45.67113, -111.05200) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.2247 | Other (At-Grade) Single-Lane | 2010 | Year Completed estimated (2009-2011). ICD estimated from Google Maps linework. | 
| Elkridge,
                MD Howard Co. United States | Elkridge Crossing Way / Doctor Patel Dr. (39.21091, -76.72512) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 31.4634 | Other (At-Grade) Single-Lane | 2007 | East leg stubbed for future. ICD estimated from Google Maps linework. | 
| Essex,
                MD Baltimore Co. United States | Southeast Blvd. (MD 702) / Hyde Park Rd. (39.29884, -76.43951) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 40.6663 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2006 | Built as temporary installation, then converted to permanent design. ICD estimated from Google Maps linework. | 
| Owings Mills,
                MD Baltimore Co. United States | Tollgate Rd. / Lastgage Rd. (39.42149, -76.78482) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 28.6010 | Other (At-Grade) Single-Lane | 2004 | ICD estimated from Google Maps linework. | 
| Sykesville,
                MD Carroll Co. United States | Smithfield Ave. / Warfield Ave. (39.37673, -76.96410) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 47.0835 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2007 | Elliptical shape. ICD estimated from Google Maps linework. | 
| Bowie,
                MD Prince George's Co. United States | Melford Blvd. / Science Dr. (38.96089, -76.71320) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 43.6480 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2008 | Concentric striping in circulatory roadway. ICD estimated from Google Maps linework. | 
| Bowie,
                MD Prince George's Co. United States | Melford Blvd. / Curie Dr. (38.95842, -76.70683) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 78.9406 | Other (At-Grade) Single-Lane | 2008 | ICD estimated from Google Maps linework. | 
| Abingdon,
                MD Harford Co. United States | Merchants Blvd. / Wegmans Blvd. (39.46815, -76.30901) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 29.5039 | Other (At-Grade) Single-Lane | 2012 | ICD estimated from Google Maps linework. | 
| Laurel,
                MD Howard Co. United States | Whiskey Bottom Rd. / All Saints Rd. (39.12478, -76.84257) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 25.9428 | Other (At-Grade) Single-Lane | 2007 | ICD estimated from Google Maps linework. | 
| Laurel,
                MD Howard Co. United States | Stephens Rd. / Whiskey Bottom Rd. (39.12704, -76.84608) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 29.6480 | Other (At-Grade) Single-Lane | 2005 | ICD estimated from Google Maps linework. | 
| Gambrills,
                MD Anne Arundel Co. United States | 2498 Mt Tabor Rd (38.99855, -76.66414) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 22.2765 | Other (At-Grade) Single-Lane | 2007 | ICD estimated from Google Maps linework. | 
| Greenbelt,
                MD Prince George's Co. United States | Cherrywood Ln. / Greenbelt Metro Dr. (39.00985, -76.90330) | Roundabout Existing | All-Way Yield Other | 3 Approaches 0 Driveways 24.1290 | Other (At-Grade) Single-Lane | 2012 | Raised crosswalks. ICD estimated from Google Maps linework. | 
| Havre de Grace,
                MD Harford Co. United States | Chapel Rd. / Bulle Rock Pkwy. (39.55465, -76.12813) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 34.9922 | Other (At-Grade) Single-Lane | 2005 | ICD estimated from Google Maps linework. | 
| Havre de Grace,
                MD Harford Co. United States | Blenheim Farm Ln. / Bounding Home Ct. (39.54665, -76.13521) | Other Existing | All-Way Yield None | 4 Approaches 0 Driveways 30.3915 | Other (At-Grade) Single-Lane | 2006 | Painted splitter islands on north and south legs, no splitter islands on east and west legs. ICD estimated from Google Maps linework. | 
| North East,
                MD Cecil Co. United States | Charlestown Crossing Blvd. / Claiborne Rd. (39.59472, -75.97957) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 27.6095 | Other (At-Grade) Single-Lane | 2011 | ICD estimated from Google Maps linework. | 
| Dundalk,
                MD Baltimore Co. United States | Dundalk Ave. / Sollers Point Rd. (39.24534, -76.50786) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 24.9734 | Other (At-Grade) Single-Lane | 2007 | ICD estimated from Google Maps linework. | 
| North East,
                MD Cecil Co. United States | Seahawk Dr. / (parking lot) (39.64098, -75.95714) | Roundabout Existing | All-Way Yield None | 3 Approaches 1 Driveways 28.5107 | Other (At-Grade) Single-Lane | 2000 | Year Completed estimated (1995-2005). ICD estimated from Google Maps linework. | 
| Hampstead,
                MD Carroll Co. United States | MD 30 (Hampstead Bypass) / Business MD 30 (Hanover Pike) (39.58178, -76.84261) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 56.1498 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2009 | ICD estimated from Google Maps linework. | 
| Hampstead,
                MD Carroll Co. United States | MD 30 (Hampstead Bypass) / MD 482 (Hampstead Mexico Rd.) (39.61108, -76.86457) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 53.3657 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2009 | ICD estimated from Google Maps linework. | 
| Hampstead,
                MD Carroll Co. United States | MD-30 (Hampstead Bypass) / Business MD 30 (Hanover Pike) (39.63466, -76.86675) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 49.6684 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2009 | ICD estimated from Google Maps linework. | 
| Windsor Mill,
                MD Baltimore Co. United States | Lord Baltimore Dr. / Wildlife Dr. (39.31993, -76.75019) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 14.7833 | Other (At-Grade) Single-Lane | 1998 | Year Completed estimated (1993-2002). ICD estimated from Google Maps linework. | 
| Windsor Mill,
                MD Baltimore Co. United States | Lord Baltimore Dr. / Glen Spring Rd. / Kettle Ct. (39.31750, -76.75152) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 17.5558 | Other (At-Grade) Single-Lane | 1998 | Year Completed estimated (1993-2002). ICD estimated from Google Maps linework. | 
| Queenstown,
                MD Queen Anne's Co. United States | Nesbit Rd. / Shoreway Dr. (38.96600, -76.18291) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | 2011 | Fourth leg stubbed. | 
| Terre Haute,
                IN Vigo Co. United States | Antioch Cir. / Antioch Cir. Access Road (39.44227, -87.33917) | Other Existing | Unknown None | 3 Approaches 0 Driveways 25.8255 | Other (At-Grade) Single-Lane | Parking in circulatory roadway. ICD estimated from Google Maps linework. | |
| Terre Haute,
                IN Vigo Co. United States | 2440 Huber Ln (39.43817, -87.38012) | Traffic Calming Circle Existing | Unknown None | 2 Approaches 4 Driveways 23.0598 | Other (At-Grade) Single-Lane | ICD estimated from Google Maps linework. | |
| Terre Haute,
                IN Vigo Co. United States | 2328 Huber Ln (39.43817, -87.38160) | Traffic Calming Circle Existing | Unknown None | 2 Approaches 2 Driveways 23.0598 | Other (At-Grade) Single-Lane | ICD estimated from Google Maps linework. | |
| Terre Haute,
                IN Vigo Co. United States | 2216 Huber Ln (39.43806, -87.38327) | Traffic Calming Circle Existing | Unknown None | 1 Approaches 2 Driveways 23.0599 | Other (At-Grade) Single-Lane | ICD estimated from Google Maps linework. | |
| Terre Haute,
                IN Vigo Co. United States | E Haythorne Ave. / N Fruitridge Ave. (39.52062, -87.36024) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 16.5834 | Other (At-Grade) Single-Lane | 2015 | ICD estimated from Google Maps linework. | 
| Terre Haute,
                IN Vigo Co. United States | Willow Run Ct. / Aspen Ct. / Magnolia Ct. (39.42072, -87.32787) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 101.4886 | Other (At-Grade) Single-Lane | ICD estimated from Google Maps linework. | |
| Terre Haute,
                IN Vigo Co. United States | IN-42 / Swalls Dr. (39.46157, -87.28667) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 36.8833 | Other (At-Grade) Single-Lane | 2013 | Year Completed estimated (2011-2014). ICD estimated from Google Maps linework. | 
| Cary,
                NC Wake Co. United States | Parkman Grant Dr. / Beacon Falls Ct. (35.81964, -78.88697) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 29.0531 | Other (At-Grade) Single-Lane | 2005 | ICD estimated from Google Maps linework. | 
| Cary,
                NC Wake Co. United States | Beacon Falls Ct. / Cameron Pond Dr. (35.81996, -78.88966) | Roundabout Existing | All-Way Yield None | 4 Approaches 1 Driveways 28.0846 | Other (At-Grade) Single-Lane | 2005 | ICD estimated from Google Maps linework. | 
| Cary,
                NC Wake Co. United States | Ledsome Ln. / (parking lots) (35.76283, -78.74796) | Other Existing | All-Way Stop None | 4 Approaches 0 Driveways 17.4443 | Other (At-Grade) Single-Lane | 2013 | ICD estimated from Google Maps linework. | 
| Woodlake,
                CA Tulare Co. United States | Hwy 216 / Hwy 245 (36.41367, -119.09891) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 30.7564 | Other (At-Grade) Single-Lane | 2016 | ICD estimated from Google Maps linework. | 
| Oakland,
                NE Burt Co. United States | US 77 / SR 32 (41.82428, -96.46580) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 48.9503 | Other (At-Grade) Single-Lane | 2015 | ICD estimated from Google Maps linework. | 
| Mansfield,
                OH Richland Co. United States | Middle Bellville Rd. / Straub Rd. (40.71063, -82.53678) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 35.3074 | Other (At-Grade) Single-Lane | 2012 | ICD estimated from Google Maps linework. | 
| Forest Grove,
                OR Washington Co. United States | OR Hwy 47 / Verboort Rd. / Purdin Rd. (45.54784, -123.10578) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 48.5115 | Other (At-Grade) Single-Lane | 2017 | ICD estimated from Google Maps linework. | 
| Forest Grove,
                OR Washington Co. United States | OR Hwy 47 / David Hill Rd. (45.53898, -123.10728) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 50.1922 | Other (At-Grade) Single-Lane | 2017 | ICD estimated from Google Maps linework. | 
| Hillsboro,
                OR Washington Co. United States | NW Jackson School Rd. / NW Scotch Church Rd. / NW Meek Rd. (45.57257, -122.96991) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 48.4901 | Other (At-Grade) Single-Lane | 2017 | ICD estimated from Google Maps linework. | 
| Hillsboro,
                OR Washington Co. United States | NE Veterans Dr. / NE 34th Ave. (45.52864, -122.94667) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 30.9575 | Other (At-Grade) Single-Lane | 2012 | ICD estimated from Google Maps linework. | 
| Hillsboro,
                OR Washington Co. United States | NE Butler St. / NE 65th Ave. (45.53838, -122.91368) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 35.1349 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2014 | ICD estimated from Google Maps linework. | 
| Earlysville,
                VA Albemarle Co. United States | VA 606 (Dickerson Rd) / CR 743 (Earlysville Rd) (38.12790, -78.46013) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 46.9750 | Other (At-Grade) Single-Lane | 2008 | ICD estimated from Google Maps linework. | 
| Prince George,
                VA Prince George Co. United States | VA 106 (Courthouse Rd) / VA 634 (Allin Rd) (37.22338, -77.29979) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 38.0409 | Other (At-Grade) Single-Lane | 2010 | ICD estimated from Google Maps linework. | 
| Berryville,
                VA Clarke Co. United States | SR 636 (Westwood Rd) / SR 7 Business (W Main St) (39.16190, -77.99695) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 31.4854 | Other (At-Grade) Single-Lane | 2013 | ICD estimated from Google Maps linework. | 
| Chantilly,
                VA Fairfax Co. United States | VA 620 (Braddock Rd.) / VA 609 (Pleasant Valley Rd.) (38.88170, -77.48570) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 25.1024 | Other (At-Grade) Single-Lane | 2016 | ICD estimated from Google Maps linework. | 
| Petersburg,
                VA Dinwiddie Co. United States | SR 600 (Westgate Dr) / SR 226 (Cox Rd) (37.21434, -77.45870) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 46.6057 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2017 | ICD estimated from Google Maps linework. | 
| Lincoln,
                NE Lancaster Co. United States | Yankee Woods Dr. / S 78th St. (40.72171, -96.61358) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 75.1288 | Other (At-Grade) Single-Lane | 2011 | ICD estimated from Google Maps linework. | 
| Lincoln,
                NE Lancaster Co. United States | Yankee Woods Dr. / (unknown) (40.72289, -96.60408) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.8266 | Other (At-Grade) Single-Lane | 2017 | ICD estimated from Google Maps linework. | 
| Lincoln,
                NE Lancaster Co. United States | Yankee Woods Dr. / (unknown 2) (40.72556, -96.60085) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 42.5404 | Other (At-Grade) Single-Lane | 2017 | ICD estimated from Google Maps linework. | 
| Keizer,
                OR Marion Co. United States | Verda Ln NE / Chemawa Rd NE (44.99750, -123.01251) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 28.7149 | Other (At-Grade) Single-Lane | 2016 | ICD estimated from Google Maps linework. | 
| Idaho Falls,
                ID Bonneville Co. United States | S Utah Ave. / Bridgeport Dr. (43.48859, -112.04979) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 47.6574 | Other (At-Grade) Single-Lane | 2002 | Eagle Rock Fountain in center island. Roundabout was partially reconstructed with geometric improvements in 2014. Original construction was in 2002. ICD estimated from Google Maps linework. | 
| Great Falls,
                MT Cascade Co. United States | Division Rd. / Smelter Ave. NW (47.52454, -111.31037) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 37.0990 | Other (At-Grade) Single-Lane | 2013 | ICD estimated from Google Maps linework. | 
| Idaho Falls,
                ID Bonneville Co. United States | E Lincoln Rd. / E Hitt Rd. (N 25th) (43.51143, -111.98410) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 51.8160 | Other (At-Grade) Multilane (2 Lane, 2x2 max) | 2001 | Right-turn-only lane on west leg. Year Completed estimated (1992-2003). Converted from single-lane to multilane in 2018. 21442 | 
| Fayetteville,
                NC Cumberland Co. United States | 3499 Footbridge Ln (34.97892, -78.97495) | Other Existing | Other None | 3 Approaches 0 Driveways 19.5718 | Other (At-Grade) Single-Lane | 2009 | ICD estimated from Google Maps linework. | 
| Boise,
                ID Ada Co. United States | N 36th St. / W Hil Rd. / W Catalpa Dr. (43.65542, -116.23333) | Roundabout Existing | All-Way Yield Unknown | 6 Approaches 0 Driveways 74.3128 | Other (At-Grade) Single-Lane | 2016 | Dogbone shape. ICD estimated from Google Maps linework. | 
| West Lafayette,
                IN Tippecanoe Co. United States | S Martin Jischke Dr. / Harrison St. / Nimitz Dr. (40.42043, -86.92193) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 55.4643 | Other (At-Grade) Single-Lane | 2011 | On Purdue University campus. Year Completed estimated (2010-2012). ICD estimated from Google Maps linework. | 
| Spokane Valley,
                WA Spokane Co. United States | E Broadway Ave. / N Flora Rd. (47.66424, -117.17510) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 24.1305 | Other (At-Grade) Single-Lane | 2010 | Year Completed estimated (2009-2011). ICD estimated from Google Maps linework. | 
| Liberty Lake,
                WA Spokane Co. United States | E Mission Ave. / N Molter Rd. (47.67131, -117.08964) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 31.3654 | Other (At-Grade) Single-Lane | 2017 | ICD estimated from Google Maps linework. | 
| Hershey,
                PA Dauphin Co. United States | SR 322 / Homestead Ln (40.27526, -76.63332) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 36.4484 | Other (At-Grade) Single-Lane | 2016 | ICD estimated from Google Maps linework. | 
| Hershey,
                PA Dauphin Co. United States | SR 322 / Meadow Ln (40.27467, -76.62551) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 40.0936 | Other (At-Grade) Single-Lane | 2016 | ICD estimated from Google Maps linework. | 
| Lower Southampton Township,
                PA Bucks Co. United States | Bridgetown Pike / W Maple (SR 0213) / Bridgetown Pike (SR 2010) (40.17417, -74.96831) | Roundabout Existing | All-Way Yield None | 3 Approaches 1 Driveways | Other (At-Grade) Single-Lane | 2016 | |
| New Stanton,
                PA Westmoreland Co. United States | Bair Blvd / Rachel Dr (40.21929, -79.61572) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | 2016 | Year completed might be 2017. | 
| Baton Rouge,
                LA East Baton Rouge Par. United States | Dalrymple Dr. / Isaac Cline Dr. / W Lakeshore Dr. (30.41647, -91.17170) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 24.7188 | Other (At-Grade) Single-Lane | 2013 | ICD estimated from Google Maps linework. | 
| Newport,
                KY Campbell Co. United States | Louie B Nunn Dr. / University Dr. (39.03333, -84.45999) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 29.6874 | Other (At-Grade) Single-Lane | 2012 | ICD estimated from Google Maps linework. | 
| Highland Heights,
                KY Campbell Co. United States | Martha Layne Collins Blvd. / Johns Hill Rd. / University Dr. / Knollwood Dr. (39.02729, -84.46077) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 43.6071 | Other (At-Grade) Single-Lane | 2012 | ICD estimated from Google Maps linework. | 
| Liberty Township,
                OH Butler Co. United States | Kyles Station Rd. / Cincinnati Dayton Rd. (39.41390, -84.36743) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 40.5994 | Other (At-Grade) Single-Lane | 2016 | ICD estimated from Google Maps linework. | 
| Springboro,
                OH Warren Co. United States | Settlers Walk Blvd. / Remick Blvd. / Stolle Dr. (39.57782, -84.21781) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 64.4378 | Other (At-Grade) Single-Lane | 1998 | ICD estimated from Google Maps linework. | 
| Miamisburg,
                OH Montgomery Co. United States | Austin W Blvd. / Automation Way (39.59850, -84.24378) | Roundabout Existing | All-Way Yield None | 2 Approaches 0 Driveways 44.1728 | Other (At-Grade) Single-Lane | 2011 | ICD estimated from Google Maps linework. | 
| Kettering,
                OH Montgomery Co. United States | Forrer Blvd. / Madison St. (39.71565, -84.14854) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 51.4476 | Other (At-Grade) Multilane (2 Lane, unspecified) | 1996 | ICD estimated from Google Maps linework. | 
| Huber Heights,
                OH Miami Co. United States | Carriage Trails Pkwy. / Senna St. (39.89143, -84.12441) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 47.6508 | Other (At-Grade) Single-Lane | 2004 | Year Completed estimated (2002-2004). Side street did not open to traffic until 2009. ICD estimated from Google Maps linework. | 
| Tipp City,
                OH Miami Co. United States | Carriage Trails Pkwy. / Lakeside St. (39.89100, -84.11903) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 51.3166 | Other (At-Grade) Single-Lane | 2005 | Side street did not open to traffic until 2013. Has pedestrian underpass. ICD estimated from Google Maps linework. | 
| Huber Heights,
                OH Miami Co. United States | Carriage Trails Pkwy. / Forestedge St. (39.89052, -84.11278) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 46.7351 | Other (At-Grade) Single-Lane | 2005 | Side street did not open to traffic until 2005. ICD estimated from Google Maps linework. | 
| Huber Heights,
                OH Miami Co. United States | Carriage Trails Pkwy (39.88634, -84.10037) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 47.6544 | Other (At-Grade) Single-Lane | 2004 | ICD estimated from Google Maps linework. | 
| West Chester Township,
                OH Butler Co. United States | Centre Pointe Dr. / West Chester Township Centre Dr. (39.32694, -84.43063) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 37.8784 | Other (At-Grade) Single-Lane | 2006 | ICD estimated from Google Maps linework. |