| City, 
                State County Country | Intersection (Lat, Lng) | Type Status | Control Type / Other Control Type | Approaches / Driveways / ICD (m) | Functional Class / LaneType | Year Completed | Comments | 
|---|---|---|---|---|---|---|---|
| Rubí,
                Catalonia Barcelona Spain | C1413a (Carretera de Molins de Rei) / Pont de Cova Solera / Calle de Edison (41.48314, 2.03004) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Multilane (2 Lane, unspecified) | ||
| Cleveland,
                OH Cuyahoga Co. United States | Franklin Blvd. / W 58th St. (41.48290, -81.72638) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 19.8120 | Other (At-Grade) Single-lane w/ Traversable Central Island | 2022 | Oval shaped. ICD = 65 ft x 50 ft. https://thelandcle.org/stories/how-residents-fought-for-and-won-a-slower-franklin-boulevard/ | 
| El Masnou,
                Catalonia Barcelona Spain | Avenida de Juan XXIII / Avenida de la Virgen del Pilar / Calle del Pintor Marià Fortuny / Calle de San Crispín (41.48281, 2.31147) | Other Existing | All-Way Yield None | 5 Approaches 0 Driveways | Other (At-Grade) Single-Lane | Pedestrian access to central island. | |
| Scotchtown,
                NY Orange Co. United States | Circle Dr. (41.48216, -74.36876) | Other Existing | Unknown Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | ||
| Cleveland,
                OH Cuyahoga Co. United States | Franklin Blvd. / W 74th St. (41.48048, -81.73575) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 21.3360 | Other (At-Grade) Single-Lane | 2022 | Oval shaped. ICD = 70 ft x 50 ft. https://thelandcle.org/stories/how-residents-fought-for-and-won-a-slower-franklin-boulevard/ | 
| Schererville,
                IN Lake Co. United States | Cline Ave. / 77th Ave. / Rohrman Rd. (41.47846, -87.43203) | Roundabout Existing | All-Way Yield Unknown | 5 Approaches 0 Driveways 40.2658 | Other (At-Grade) Single-Lane | 2014 | ICD estimated from Google Maps linework. | 
| Salem,
                CT New London Co. United States | Rte 85 (Hartford Rd.-New London Rd.) / Rte 82 (E Haddam Rd.-Norwich Rd.) (41.47662, -72.26473) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 33.1084 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2012 | ICD estimated from Google Maps linework. | 
| Schererville,
                IN Lake Co. United States | Pine Island Dr. / W 81st Pl. (41.47142, -87.39784) | Other Existing | One-Way/Two-Way Stop None | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | No splitter islands on two legs. | |
| Valparaiso,
                IN Porter Co. United States | Laporte Ave. / Silhavy Rd. (41.46915, -87.02706) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 43.8513 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2019 | https://www.chicagotribune.com/suburbs/post-tribune/ct-ptb-valpo-roundabout-st-1130-20191129-csayjggqvzgz7cjciclev2mw5q-story.html ICD estimated from Google Maps linework. | 
| Valparaiso,
                IN Porter Co. United States | Laporte Ave. / Sturdy Rd. (41.46645, -87.03669) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 42.6720 | Other (At-Grade) Single-Lane | 2008 | Right-turn-only lanes on west, east, and south legs. | 
| Cleveland,
                OH Cuyahoga Co. United States | Quigley Rd. / W. 14th St. / I-71 NB Offramp / I-71 SB Onramp (41.46614, -81.69114) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 50.1181 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2006 | Opened August 21, 2006. ICD estimated from Google Maps linework. | 
| Badalona,
                Catalonia Barcelona Spain | Avenida de Pomar / Carretera de Pomar / Calle del Torrente de Vallmajor / Avenida de Sabadell / Carrer Masnou / Carrer Malgrat de Mar (41.46580, 2.25316) | Roundabout Existing | All-Way Yield Metering Signal | 7 Approaches 0 Driveways | Other (At-Grade) Multilane (2 Lane, unspecified) | ||
| Montgat,
                Catalonia Barcelona Spain | Calle de San Antonio María Claret / Carretera de Tiana / Calle de Guixeres (41.46405, 2.26831) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Cleveland,
                OH Cuyahoga Co. United States | Chagrin Blvd. / Pinetree Rd. / Lander Rd. (41.46235, -81.46332) | Other Existing | Other None | 5 Approaches 3 Driveways 92.1870 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Shaker Heights,
                OH Cuyahoga Co. United States | Hwy 8 / Northfield Rd. / (cemetery access) (41.46013, -81.53311) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 30.4317 | Other (At-Grade) Single-Lane | 2014 | Year Completed estimated (2014-2015). ICD estimated from Google Maps linework. | 
| Middleton Township,
                OH Wood Co. United States | SR 582 (Middleton Pike) / (unknown) (41.45838, -83.63843) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 45.7200 | Other (At-Grade) Single-Lane | 2024 | https://www.sent-trib.com/2024/11/20/roundabout-on-rt-582-opens/ | 
| Cleveland,
                OH Cuyahoga Co. United States | Scranton Rd. / View Rd. (41.45800, -81.70001) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 30.4800 | Other (At-Grade) Single-Lane | 2023 | |
| Columbus,
                NE Platte Co. United States | 41st Ave. / Discoverer Dr. (41.45678, -97.37745) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 36.5760 | Other (At-Grade) Single-Lane | 2015 | |
| South Kingstown,
                RI Washington Co. United States | Kingstown Rd. / High St. (41.45105, -71.50018) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 28.6456 | Other (At-Grade) Single-Lane | 2007 | Retrofitted rotary. No deflection on east leg. ICD estimated from Google Maps linework. | 
| Syracuse,
                IN Elkhart Co. United States | US 6 / SR 13 / CR 33 (41.45058, -85.75045) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2020 | |
| Valparaiso,
                IN Porter Co. United States | SR 2 / Heavilin Rd. (41.45024, -87.07577) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 45.7200 | Other (At-Grade) Single-Lane | 2021 | https://www.chicagotribune.com/suburbs/post-tribune/ct-ptb-porter-roundabouts-st-0905-20210903-r56brms7wreczmlol3foavyhfu-story.html | 
| Crown Point,
                IN Lake Co. United States | W 93rd Ave. / Chase St. / Britney Meux Dr. (41.44979, -87.37395) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 47.4452 | Other (At-Grade) Single-Lane | 2016 | Year Completed estimated (2015-2017). ICD estimated from Google Maps linework. | 
| Fremont,
                NE Dodge Co. United States | Diers Pkwy. / Johnson Rd. / E 16th St. / (parking) (41.44422, -96.45389) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 54.8640 | Other (At-Grade) Single-Lane | 2001 | Year Completed estimated (1999-2003). | 
| St John,
                IN Lake Co. United States | Joliet St. / W 101st Ave. / Parrish St. (41.44113, -87.45029) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2019 | Year Completed estimated (2017-2020). | 
| Merrillville,
                IN Lake Co. United States | E 98th Ave. (Connecticut Dr.) / (future road) (41.43973, -87.33358) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 60.9600 | Other (At-Grade) Single-Lane | 2004 | Year Completed estimated (2003-2005). | 
| Channahon,
                IL Will Co. United States | S Navajo Dr. / St Ann Way (41.43729, -88.22099) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 39.6240 | Other (At-Grade) Single-Lane | 2004 | Year Completed estimated (2002-2005). | 
| Valparaiso,
                IN Porter Co. United States | Edinburgh St. / Dundee St. (41.43673, -87.10985) | Other Existing | Uncontrolled None | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | Pedestrian access to central island. | |
| Merrillville,
                IN Lake Co. United States | Connecticut Dr. / E 100th Pl. / Delaware St. (41.43632, -87.33005) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 60.9600 | Other (At-Grade) Single-Lane | 2006 | |
| Muscatine,
                IA Muscatine Co. United States | Cedar St. / Logan St. (41.43575, -91.06473) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 27.7570 | Other (At-Grade) Single-Lane | 2015 | Year Completed estimated (2014-2016). ICD estimated from Google Maps linework. | 
| St John,
                IN Lake Co. United States | Park Pl. / W 101st Pl. (41.43466, -87.43845) | Other Existing | All-Way Yield None | 4 Approaches 0 Driveways 45.7200 | Other (At-Grade) Single-Lane | No splitter island on east leg. Pedestrian access to central island. | |
| Kingston,
                RI Washington Co. United States | Kingstown Rd. / Point Judith Rd. (41.43422, -71.48238) | Rotary Existing | Unknown Unknown | 3 Approaches 0 Driveways 81.4821 | Other (At-Grade) Multilane (2 Lane, unspecified) | Functional Class: Arterial ICD estimated from Google Maps linework. | |
| St John,
                IN Lake Co. United States | Park Pl. / W 103rd St. / W 105th Ave. (41.42981, -87.44027) | Other Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | Pedestrian access to central island. | |
| Wawayanda,
                NY Orange Co. United States | Dolsontown Rd. / Genung St. / Schutt Rd. / Airport Rd. (41.42955, -74.40313) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 25.9687 | Other (At-Grade) Single-Lane | 2015 | Year Completed estimated (2013-2016). ICD estimated from Google Maps linework. | 
| St John,
                IN Lake Co. United States | W 105th Pl. / Bridlewood St. (41.42788, -87.44468) | Other Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | No splitter islands. | |
| Crown Point,
                IN Lake Co. United States | E Summit St. / Beacon Hill Dr. (41.42735, -87.33382) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 44.1960 | Other (At-Grade) Single-Lane | 2019 | Year Completed estimated (2017-2021). | 
| Crown Point,
                IN Lake Co. United States | Delaware Pkwy. / E Summit St. (41.42642, -87.33059) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 44.1960 | Other (At-Grade) Single-Lane | 2019 | Year Completed estimated (2017-2021). | 
| St John,
                IN Lake Co. United States | W 107th Ave. / Olcott Ave. (41.42519, -87.48115) | Other Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | Pedestrian access to central island. | |
| Middletown,
                NY Orange Co. United States | Rte 78 / Rte 108 (James P Kelly Way) (41.42510, -74.43364) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 18.8062 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2018 | https://www.recordonline.com/news/20181002/middletown-roundabout-nearly-completed ICD estimated from Google Maps linework. | 
| St John,
                IN Lake Co. United States | Sagebrook / Scarlett Oak / Bridlewood St. / W 107th Ln. (41.42453, -87.44468) | Other Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | Pedestrian access to central island; no splitter islands. | |
| North Stonington,
                CT New London Co. United States | Rte 2 / Rte 184 (41.42439, -71.86039) | Rotary Existing | All-Way Yield None | 4 Approaches 0 Driveways 103.6320 | Other (At-Grade) Single-Lane | Yield signs added 1999? | |
| Crown Point,
                IN Lake Co. United States | Delaware Pkwy. / E 107th Ave. (41.42389, -87.33001) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 44.1960 | Other (At-Grade) Single-Lane | 2019 | Year Completed estimated (2017-2021). | 
| Muscatine,
                IA Muscatine Co. United States | Mulberry Ave. / 2nd St. (41.42371, -91.04141) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2020 | https://www.youtube.com/watch?v=nyJfLuvBF_A | 
| St John,
                IN Lake Co. United States | Hillcrest Ln. / Edgewood Ct. (41.42248, -87.49663) | Other Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | Pedestrian access to central island. No splitter islands on north, east, and west legs. | |
| Monee,
                IL Will Co. United States | W Court St. / S Egyptian Trl. (41.42154, -87.74755) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 33.5280 | Other (At-Grade) Single-Lane | 2018 | Year Completed estimated (2017-2018). | 
| Lorain,
                OH Lorain Co. United States | Oak Point Estates (41.42126, -82.24709) | Traffic Calming Circle Existing | Unknown Unknown | 2 Approaches 1 Driveways 0.0000 | Other (At-Grade) Unknown | ||
| Lorain,
                OH Lorain Co. United States | Oak Point Estates (41.42122, -82.24337) | Traffic Calming Circle Existing | Unknown Unknown | 2 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | ||
| Oak Bluffs,
                MA Dukes Co. United States | Barnes Rd / Edgartown Vineyard Haven Rd (41.42083, -70.60172) | Roundabout Existing | Unknown None | 4 Approaches 0 Driveways 28.6589 | Other (At-Grade) Single-Lane | 2013 | ICD estimated from Google Maps linework. | 
| Valparaiso,
                IN Porter Co. United States | SR 2 / CR 100 S / S 300 W (41.42049, -87.12410) | Roundabout Existing | All-Way Yield None | 5 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2020 | https://www.facebook.com/INDOTNorthwest/videos/roundabout-at-state-road-2-and-cr-100-s-porter-county-south-of-valparaiso-now-op/597923314253697/ | 
| Crown Point,
                IN Lake Co. United States | E 109th Ave. / I-65 SB Ramps (41.42023, -87.32277) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 0.0000 | Freeway Ramps (Grade-Separated) Unknown | 2021 | Raindrop shaped. | 
| Winfield,
                IN Lake Co. United States | E 109th Ave. / Green Pl. (41.42020, -87.26608) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2024 | https://www.instagram.com/mattscottmedia/reel/DDNztI8hQq3/ | 
| Crown Point,
                IN Lake Co. United States | E 109th Ave. / Iowa St. (41.42018, -87.30678) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | 2021 | |
| Crown Point,
                IN Lake Co. United States | E 109th Ave. / Mississippi St. (41.42017, -87.31533) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2020 | https://www.nwitimes.com/news/work-on-roundabout-along-109th-nears-completion-project-remains-on-schedule-officials-say/article_d93047e1-111e-5877-976d-7bba61436da2.html | 
| Crown Point,
                IN Lake Co. United States | E 109th Ave. / I-65 NB Ramps (41.42017, -87.31963) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 0.0000 | Freeway Ramps (Grade-Separated) Unknown | 2021 | Raindrop shaped. | 
| North Ridgeville,
                OH Lorain Co. United States | SR 83 / Mills Rd. (41.41884, -82.01865) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 36.7204 | Other (At-Grade) Single-Lane | 2017 | ICD estimated from Google Maps linework. | 
| North Ridgeville,
                OH Lorain Co. United States | Stoney Ridge Rd. / Avalon Dr. / Mils Rd. (41.41849, -82.04192) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2024 | Peanut shaped. Replaced two offset T-intersections. https://www.youtube.com/watch?v=JgKCpyMR-aE. | 
| Inglewood,
                NE Dodge Co. United States | US 77 / S Broad St. / S Main St. (41.40986, -96.49868) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 67.0560 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2023 | Left-through-right and right-turn-only lanes on northwest leg. Year Completed estimated (2023-2024). | 
| Napoleon,
                OH Henry Co. United States | SR 108 / US 6-US 24 WB Ramps (41.40926, -84.13197) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 0.0000 | Freeway Ramps (Grade-Separated) Single-Lane | 2023 | https://www.northwestsignal.net/news/image_e08cef2c-9084-52ef-9bc1-bfd8ab955679.html | 
| Fremont,
                NE Dodge Co. United States | US 77 (Fremont Southeast Beltway) / S Downing St. (41.40772, -96.47361) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 67.0560 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2022 | |
| Napoleon,
                OH Henry Co. United States | SR 424 (E Riverview Ave.) / Industrial Dr. (41.40593, -84.10515) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2021 | https://www.crescent-news.com/news/local_news/second-napoleon-traffic-roundabout-opens/article_a0a29aab-464d-5d54-aa2d-b73a72ca2c49.html | 
| Fremont,
                NE Dodge Co. United States | US 77 / US 275 SB Ramps (41.40474, -96.44633) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 48.7680 | Freeway Ramps (Grade-Separated) Single-Lane | 2023 | Raindrop shaped. Yield-controlled right-turn-only lane on west leg. Year Completed estimated (2021-2024). | 
| Fremont,
                NE Dodge Co. United States | US 77 / US 275 NB Ramps / Old Highway 8 (41.40473, -96.44391) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 50.2920 | Freeway Ramps (Grade-Separated) Single-Lane | 2023 | Raindrop shaped. Year Completed estimated (2021-2024). | 
| Napoleon,
                OH Henry Co. United States | SR 110 / Industrial Dr. (41.40239, -84.10034) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2020 | https://nbc24.com/newsletter-daily/roundabout-opens-on-state-route-110-in-napoleon | 
| Sandusky,
                OH Erie Co. United States | W Bogart Rd. / Campbell St (41.39657, -82.70683) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 39.4208 | Other (At-Grade) Unknown | 2018 | ICD estimated from Google Maps linework. | 
| Molins de Rei,
                Catalonia Barcelona Spain | Calle del Pla / Calle de la Huerta (41.39496, 2.02982) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Multilane (2 Lane, unspecified) | ||
| Molins de Rei,
                Catalonia Barcelona Spain | B-23-E90 / Carretera de Torrelles (connector to BV 2005) (41.39363, 2.02575) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | ||
| Crown Point,
                IN Lake Co. United States | US 231 / Saint Francis Dr. (41.38987, -87.31972) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Multilane (2 Lane, 2x2 max) | 2023 | Roundabout serves hospital. Year Completed estimated (2023-2024). | 
| Danbury,
                CT Fairfield Co. United States | Reserve Rd. / Old Ridgebury Rd. (41.38810, -73.53322) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 34.0496 | Other (At-Grade) Single-Lane | 2007 | ICD estimated from Google Maps linework. | 
| Bethel,
                CT Fairfield Co. United States | Great Hill Dr. / Summit Rd. / Briar Ridge Dr. (41.38629, -73.41336) | Other Existing | Unknown Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | No splitter islands. | |
| Bethel,
                CT Fairfield Co. United States | Briar Ridge Dr. / Old Lookout Way (41.38544, -73.41093) | Other Existing | Unknown Unknown | 2 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | No splitter islands. | |
| Cedar Lake,
                IN Lake Co. United States | Lake Shore Dr. / Cline Ave. (41.38527, -87.43120) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2020 | https://cedarlakein.org/blog-post/cline-lake-shore-drive-roundabout-update-05-27-20/ | 
| Danbury,
                CT Fairfield Co. United States | Reserve Rd. / Milestone Rd. (41.38525, -73.51778) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 40.3237 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2013 | ICD estimated from Google Maps linework. | 
| Bethel,
                CT Fairfield Co. United States | Summit Rd. / Hunting Ridge Ln. (41.38386, -73.41104) | Other Existing | Unknown Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | No splitter islands. | |
| Elkhorn,
                NE Douglas Co. United States | N 204th St. (SR 31) / Pawnee Rd. (SR 36) (41.37871, -96.23428) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2020 | https://dcpostgazette.com/2020/05/28/construction-of-roundabout-completed/ | 
| Seymour,
                CT New Haven Co. United States | Rte. 188 / Rte. 334 (Great Hill Rd.) / Holbrook Rd. (41.37857, -73.12669) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 35.8466 | Other (At-Grade) Single-Lane | 2016 | Previous traffic circle was upgraded to modern roundabout design guidelines. 21442 | 
| Narragansett,
                RI Washington Co. United States | Succotash Rd. / Beach Row (41.37662, -71.51541) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 24.1972 | Other (At-Grade) Single-Lane | 2011 | Rotary retrofitted (signage and striping). No geometric changes to add deflection. ICD estimated from Google Maps linework. 21442 | 
| (unincorporated),
                NE Douglas Co. United States | Northern Hills Dr. / N 182nd St. / N 182nd Creek (41.37520, -96.19863) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 28.9560 | Other (At-Grade) Single-Lane | 2008 | Traversable splitter islands. | 
| Bowling Green,
                OH Wood Co. United States | E Wooster St. / I-75 SB Ramps (41.37453, -83.61786) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 34.0567 | Freeway Ramps (Grade-Separated) Single-Lane | 2019 | https://nbc24.com/news/local/wooster-street-roundabouts-to-open-in-bowling-green. ICD estimated from Google Maps linework. | 
| Bowling Green,
                OH Wood Co. United States | SR 64 (E Wooster St.) / Campbell Hill Rd. / Alumni Dr. (41.37449, -83.62357) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2023 | https://bgindependentmedia.org/another-learning-curve-in-bg-this-one-a-multi-lane-roundabout/ | 
| Bowling Green,
                OH Wood Co. United States | E Wooster St. / I-75 NB Ramps (41.37445, -83.61400) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 34.0568 | Freeway Ramps (Grade-Separated) Single-Lane | 2019 | https://nbc24.com/news/local/wooster-street-roundabouts-to-open-in-bowling-green. ICD estimated from Google Maps linework. | 
| Plymouth,
                IN Marshall Co. United States | Michigan Rd. / Veterans Pkwy. (41.37295, -86.31351) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 51.8160 | Other (At-Grade) Single-Lane | 2015 | |
| Tashkent,
                Tashkent Uzbekistan | (unknown) (41.36723, 69.28548) | Other Existing | Unknown Unknown | 3 Approaches 3 Driveways | Other (At-Grade) Multilane (3+ Lane) | ||
| North Ridgeville,
                OH Lorain Co. United States | Gatestone Rd. / Gatewood Dr. / Riverwood Dr. (41.36401, -81.98573) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 24.3840 | Other (At-Grade) Single-Lane | 2021 | Originally circular intersection with pedestrian access to circulatory roadway. Converted to roundabout 2020-2021. One-stage pedestrian crossings. | 
| Bowling Green,
                OH Wood Co. United States | Napoleon Rd. / Campbell Hill Rd. (41.36356, -83.62468) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2022 | https://bgindependentmedia.org/new-roundabout-in-bg-to-reduce-crashes-at-campbell-hill-and-napoleon-roads/ | 
| North Utica,
                IL La Salle Co. United States | US 6 / SR 178 (41.36088, -89.01022) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2023 | https://www.shawlocal.com/news-tribune/2023/04/20/utica-roundabout-is-functional-and-open/ | 
| Madison,
                CT New Haven Co. United States | Rte. 80 / Rte. 79 (41.35976, -72.63807) | Rotary Existing | All-Way Yield None | 4 Approaches 0 Driveways 98.6077 | Other (At-Grade) Single-Lane | Old traffic circle converted to yield on entry. ICD estimated from Google Maps linework. | |
| Killingworth,
                CT Middledex Co. United States | Rte. 80 / Rte. 81 (41.35801, -72.56517) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.6240 | Other (At-Grade) Single-Lane | 1997 | First rotary modification in Connecticut. 21442 | 
| Oakwood,
                OH Cuyahoga Co. United States | Pettibone Rd. / Richmond Rd. (41.35765, -81.48895) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 34.9620 | Other (At-Grade) Single-Lane | 2013 | Year Completed estimated (2012-2014). ICD estimated from Google Maps linework. | 
| North Ridgeville,
                OH Lorain Co. United States | SR 83 Alternate / Chestnut Ridge Rd. (41.35685, -82.02792) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2021 | https://www.cleveland.com/community/2021/08/north-ridgeville-celebrates-the-opening-of-a-new-roundabout.html | 
| New London,
                CT New London Co. United States | Lincoln Ave. / Colver St. (41.35554, -72.11288) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | ||
| Fremont,
                OH Sandusky Co. United States | US 6 (OH-53) / Terra State Community College access (41.35386, -83.16530) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 39.4467 | Other (At-Grade) Single-Lane | 2015 | ICD estimated from Google Maps linework. | 
| L'Hospitalet de Llobregat,
                Catalonia Barcelona Spain | Rambla de la Marina / Travessia Industrial (41.35307, 2.10703) | Other Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Multilane (3+ Lane) | Pedestrian access to central island. | |
| Mystic,
                CT Southeastern Connecticut United States | US 1 / E Main St. / Broadway Ave. (41.35291, -71.96408) | Traffic Calming Circle Existing | One-Way/Two-Way Stop Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | ||
| Groton Township,
                OH Erie Co. United States | SR 4 / SR 99 / Skadden Rd. (41.35214, -82.75329) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2023 | Realignment of skewed intersection. https://www.transportation.ohio.gov/projects/projects/110898. https://sanduskyregister.com/news/477684/new-roundabout-opens/. | 
| Amherst,
                OH Lorain Co. United States | SR 113 (Telegraph Rd.) / Baumhart Rd. (41.34723, -82.27481) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2021 | https://www.newskudo.com/ohio/lorain/government/3951055-odot-route-113-baumhart-road-roundabout-work-continuing | 
| Twinsburg,
                OH Summit Co. United States | Darrow Rd. (SR 91) / Meadowood Blvd. / Ethans Dr. (41.34696, -81.44008) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 45.7200 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2020 | http://www.dot.state.oh.us/districts/D04/Documents/2019%20construction%20book%20ver%203.pdf (page 9) | 
| New London,
                CT New London Co. United States | Shaw St. / Howard St. / Willets Ave. (41.34284, -72.09972) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 34.9700 | Other (At-Grade) Single-Lane | 2000 | ICD estimated from Google Maps linework. | 
| New London,
                CT New London Co. United States | Shaw St. / Pequot Ave. / Nameaug St. / Driveway to Pfizer (41.34204, -72.09873) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 35.8671 | Other (At-Grade) Single-Lane | 2000 | Functional Class: Collector ICD estimated from Google Maps linework. | 
| Reynolds Heights,
                PA Mercer Co. United States | Circle Dr. (41.34188, -80.40116) | Other Existing | Unknown Unknown | 2 Approaches 4 Driveways 0.0000 | Other (At-Grade) Unknown | ||
| Twinsburg,
                OH Summit Co. United States | Liberty Rd. / Glenwood Dr. (41.34166, -81.41895) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 25.1071 | Other (At-Grade) Single-Lane | 2009 | ICD estimated from Google Maps linework. | 
| Peru,
                IL La Salle Co. United States | Peoria St. / Plank Rd. / Sunset Dr. (41.34157, -89.13074) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2020 | https://www.mywebtimes.com/2020/10/07/la-salle-countys-first-roundabout-will-be-partially-opened-thursday/aix39n8/ |