| City, 
                State County Country | Intersection (Lat, Lng) | Type Status | Control Type / Other Control Type | Approaches / Driveways / ICD (m) | Functional Class / LaneType | Year Completed | Comments | 
|---|---|---|---|---|---|---|---|
| Cooma,
                New South Wales Snowy Monaro Regional Australia | B23 (Sharp St.) / B72 (Sharp St.) / B23-B72 (Bombala St.) / Bombala St. (-36.23450, 149.12698) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Cooma,
                New South Wales Snowy Monaro Regional Australia | B23 (Monaro Hwy.) / Polo Flat Rd. (-36.21325, 149.15147) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Coombabah,
                Queensland Gold Coast Australia | Hansford Rd. / Burrinjuck Dr. / Numbat Ct. (-27.89915, 153.37993) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Coomera,
                Queensland Gold Coast Australia | Colman Rd. / Ragamuffin Dr. E (-27.83287, 153.36967) | Roundabout Existing | All-Way Yield None | 3 Approaches 1 Driveways | Other (At-Grade) Single-Lane | ||
| Coomera,
                Queensland Gold Coast Australia | Colman Rd. / Ragamuffin Dr. / Ragamuffin Dr. W (-27.83886, 153.36144) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Coomera,
                Queensland Gold Coast Australia | Ragamuffin Dr. W / Boambillee Dr. / Loki Rd. (-27.83905, 153.35291) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Coomera,
                Queensland Gold Coast Australia | Waterway Dr. / Beattie Rd. / Grand Waterway Dr. (-27.86913, 153.33247) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Coomera,
                Queensland Gold Coast Australia | Amity Rd. / Edwardson Dr. / O'Reilly Dr. (-27.84008, 153.34259) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Coomera,
                Queensland Gold Coast Australia | Edwardson Dr. / Orlando Dr. / (Picnic Creek State School entrance) (-27.83985, 153.33843) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Coomera,
                Queensland Gold Coast Australia | Celestial Way / Edwardson Dr. / Orlando Dr. / Santana Rd. (-27.84129, 153.33228) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Coonabarabran,
                New South Wales Warrumbungle Shire Australia | A39 (John St.) / Dalgarno St. (-31.27343, 149.27722) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Coopersville,
                MI Ottawa Co. United States | 68th Ave. / Randall St. (43.05976, -85.95670) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 38.3956 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2007 | ICD estimated from Google Maps linework. | 
| Cooroy,
                Queensland Noosa Australia | SR 6 (Cooroy Connection Rd. - Myall St.) / Nandroya Rd. (-26.43158, 152.91432) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways | Other (At-Grade) Multilane (2 Lane, unspecified) | ||
| Cooroy,
                Queensland Noosa Australia | Mary River Rd. / Sportsground Parade / Jarrah St. (-26.41472, 152.90322) | Roundabout Existing | All-Way Yield None | 4 Approaches 1 Driveways | Other (At-Grade) Single-Lane | Oval shaped. | |
| Copenhagen,
                Capital Region København Denmark | Ørestads Blvd. / Grønjordsvej (55.65493, 12.58862) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways | Other (At-Grade) Single-Lane | Bicycle lane around circulatory roadway. | |
| Copley Township,
                OH Summit Co. United States | Ridgewood Rd. / Hametown Rd. (41.11395, -81.66791) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 25.1947 | Other (At-Grade) Single-Lane | 2006 | Opened August 21, 2006. ICD estimated from Google Maps linework. | 
| Coppell,
                TX Dallas Co. United States | Westhaven Rd. (32.98920, -97.00581) | Other Existing | Uncontrolled None | 2 Approaches 0 Driveways 48.7680 | Other (At-Grade) Single-Lane | 2014 | Pedestrian access to central island; no splitter island on one leg. | 
| Coquelles,
                Hauts-de-France Pas-de-Calais France | D243E3 / D243E4 / Avenue Charles de Gaulle (50.92925, 1.79793) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 42.9074 | Other (At-Grade) Single-Lane | ICD estimated from Google Maps linework. | |
| Coquelles,
                Hauts-de-France Pas-de-Calais France | D243E4 / E402-A16 SB Ramps / Chemin des Veuves (50.92793, 1.80121) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 38.3919 | Freeway Ramps (Grade-Separated) Single-Lane | ICD estimated from Google Maps linework. | |
| Coquelles,
                Hauts-de-France Pas-de-Calais France | D243E4 / E402-A16 NB Ramps (50.92633, 1.80438) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 33.1236 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | ICD estimated from Google Maps linework. | |
| Coquelles,
                Hauts-de-France Pas-de-Calais France | Rond-Point des Sapins (D243E4 / Boulevard de l'Europe / Avenue des Longue Pièces) (50.92496, 1.80749) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 67.7547 | Other (At-Grade) Multilane (2 Lane, unspecified) | ICD estimated from Google Maps linework. | |
| Coquitlam,
                BC Greater Vancouver Canada | Woolridge St. / (parking lot) (49.23188, -122.85288) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 28.8561 | Other (At-Grade) Single-Lane | 2012 | Year Completed estimated (2011-2012). ICD estimated from Google Maps linework. | 
| Coquitlam,
                BC Greater Vancouver Canada | Soball St. / Gislason Ave. (49.28930, -122.75026) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 25.0000 | Other (At-Grade) Single-Lane | 2011 | Year Completed estimated (2009-2011). | 
| Coral,
                IL McHenry Co. United States | US 20 / Harmony Rd. (42.16114, -88.52668) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 48.7680 | Other (At-Grade) Single-Lane | 2020 | |
| Coral Gables,
                FL Miami-Dade Co. United States | Hernando St. / Sevilla Ave. (25.74563, -80.26461) | Traffic Calming Circle Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | ||
| Coral Gables,
                FL Miami-Dade Co. United States | Anderson Rd. / Sevilla Ave. (25.74534, -80.27075) | Traffic Calming Circle Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | ||
| Coral Gables,
                FL Miami-Dade Co. United States | N Greenway Dr. / S Greenway Dr. (25.75126, -80.28391) | Traffic Calming Circle Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | ||
| Coral Gables,
                FL Miami-Dade Co. United States | Hardee Rd. / Maynada St. (25.71218, -80.27336) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 19.3693 | Other (At-Grade) Single-Lane | 2008 | Year Completed estimated (2007-2008). ICD estimated from Google Maps linework. | 
| Coral Gables,
                FL Miami-Dade Co. United States | Maynada St. / S Alhambra Cir. (25.70666, -80.27317) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 21.5224 | Other (At-Grade) Single-Lane | 2006 | ICD estimated from Google Maps linework. | 
| Coral Gables,
                FL Miami-Dade Co. United States | Maynada St. / Alfonso Ave. (25.70778, -80.27321) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 18.2939 | Other (At-Grade) Single-Lane | 2007 | Year Completed estimated (2006-2007). ICD estimated from Google Maps linework. | 
| Coral Gables,
                FL Miami-Dade Co. United States | San Amaro Dr. / Certosa Ave. / Campo Sano Ave. (25.72365, -80.28086) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 27.9752 | Other (At-Grade) Single-Lane | 2002 | Year Completed estimated (1999-2002). ICD estimated from Google Maps linework. | 
| Coral Gables,
                FL Miami-Dade Co. United States | Segovia St. / Coral Way / N Greenway Dr. (25.74932, -80.26686) | Roundabout Existing | All-Way Yield Unknown | 5 Approaches 0 Driveways 36.5750 | Other (At-Grade) Single-Lane | 2009 | Year Completed estimated (2007-2010). ICD estimated from Google Maps linework. | 
| Coral Gables,
                FL Miami-Dade Co. United States | Segovia St. / Biltmore Way (25.74815, -80.26673) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 33.3481 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2010 | ICD estimated from Google Maps linework. | 
| Coral Gables,
                FL Miami-Dade Co. United States | Sevilla Ave. / Granada Blvd. / De Soto Blvd. (25.74517, -80.27483) | Other Existing | All-Way Stop Unknown | 6 Approaches 1 Driveways 51.6371 | Other (At-Grade) Single-Lane | ICD estimated from Google Maps linework. | |
| Coral Gables,
                FL Miami-Dade Co. United States | Sunset Rd (SW 72nd St) / LeJeune Rd (SW 42nd Ave) / Cocoplum Rd / Old Cutler Rd (25.70536, -80.26083) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 71.0248 | Other (At-Grade) Single-Lane | Entering traffic yields to circling traffic Functional Class: Collector ICD estimated from Google Maps linework. | |
| Coral Gables,
                FL Miami-Dade Co. United States | Ponce de Leon Blvd. / Greco Ave. / Ruiz Ave. (25.73047, -80.25832) | Roundabout Existing | All-Way Yield Unknown | 6 Approaches 0 Driveways 49.4917 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2002 | ICD estimated from Google Maps linework. | 
| Coral Gables,
                FL Miami-Dade Co. United States | Ponce de Leon Blvd. / Sevilla Ave. / Palermo Ave. (25.74597, -80.25848) | Other Existing | Unknown Unknown | 6 Approaches 0 Driveways 138.7738 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Coral Springs,
                FL Broward Co. United States | Blue Sage Way / Bay Leaf Ct. / Eden Manor (26.33207, -80.25658) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 58.8722 | Other (At-Grade) Single-Lane | 2005 | Functional Class: Local ICD estimated from Google Maps linework. | 
| Coral Springs,
                FL Broward Co. United States | W Atlantic Blvd. / Riverside Dr. (26.23802, -80.28348) | Other Existing | Unknown Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | Pedestrian access to central island. | |
| Coral Terrace,
                FL Miami-Dade Co. United States | Devonshire Blvd. / SW 58th Ave. / SW 29th St. (25.74383, -80.28909) | Roundabout Existing | All-Way Yield Unknown | 5 Approaches 0 Driveways 21.5157 | Other (At-Grade) Single-Lane | 2003 | ICD estimated from Google Maps linework. | 
| Coral Terrace,
                FL Miami-Dade Co. United States | Devonshire Blvd. / SW 59th Ave. / SW 30th St. (25.74284, -80.29109) | Roundabout Existing | All-Way Yield Unknown | 5 Approaches 0 Driveways 21.5159 | Other (At-Grade) Single-Lane | 2003 | ICD estimated from Google Maps linework. | 
| Coralville,
                IA Johnson Co. United States | Commerce Dr. / Commercial Park (41.69560, -91.61393) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.2389 | Other (At-Grade) Single-Lane | 2014 | ICD estimated from Google Maps linework. | 
| Coralville,
                IA Johnson Co. United States | 12th Av. / Holiday Rd. (41.69491, -91.58287) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 21.4032 | Other (At-Grade) Single-lane w/ Traversable Central Island | 2015 | Year Completed estimated (2014-2016). ICD estimated from Google Maps linework. | 
| Coralville,
                IA Johnson Co. United States | E 7th St. / E 2nd Ave. (41.67892, -91.56378) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 43.7092 | Other (At-Grade) Single-Lane | 2019 | Opened to traffic August 2019. East leg will re-open October 2019; north leg open to traffic summer 2020. ICD estimated from Google Maps linework. | 
| Coralville,
                IA Johnson Co. United States | Oakdale Blvd. / Jones Blvd. (41.70758, -91.61387) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 37.4483 | Other (At-Grade) Single-Lane | 2015 | Year Completed estimated (2014-2016). ICD estimated from Google Maps linework. | 
| Coralville,
                IA Johnson Co. United States | Heartland Dr. / Russell Dr. (41.70007, -91.61160) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 41.9113 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2013 | ICD estimated from Google Maps linework. | 
| Coralville,
                IA Johnson Co. United States | Ridgeway Dr / University Ct (41.71577, -91.59998) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 36.5520 | Other (At-Grade) Single-Lane | 2013 | ICD estimated from Google Maps linework. | 
| Coralville,
                IA Johnson Co. United States | University Ct / University Pkwy (41.71383, -91.60093) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 36.5531 | Other (At-Grade) Single-Lane | 2013 | ICD estimated from Google Maps linework. | 
| Coralville,
                IA Johnson Co. United States | 1st Ave. / Holiday Rd. (41.69276, -91.56655) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 33.8896 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2002 | Opened September 1, 2002. Previously controlled by one-way stop Functional Class: Collector ICD estimated from Google Maps linework. | 
| Coralville,
                IA Johnson Co. United States | 12th Ave. / Forevergreen Rd. (41.72284, -91.59520) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 32.9823 | Other (At-Grade) Single-Lane | 2005 | http://www.coralville.org/mod/press/documents/12th%20Ave%2011-18-05.pdf. Opened November 16, 2005. ICD estimated from Google Maps linework. | 
| Coralville,
                IA Johnson Co. United States | E. 9th St. / Quarry Rd. (41.68176, -91.55988) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 36.5714 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2006 | Opened August 15, 2006. ICD estimated from Google Maps linework. | 
| Coralville,
                IA Johnson Co. United States | Holiday Rd. / Corridor Way (41.69709, -91.60332) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 30.3202 | Other (At-Grade) Single-Lane | 2007 | ICD estimated from Google Maps linework. | 
| Coralville,
                IA Johnson Co. United States | E 9th St. / E 2nd Ave. (41.68169, -91.56306) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2020 | https://www.coralville.org/887/E-9th-Street | 
| Coralville,
                IA Johnson Co. United States | (unknown) / (unknown) (41.72647, -91.56882) | Unknown Existing | Unknown Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | 2023 | |
| Coralville,
                IA Johnson Co. United States | N Liberty Rd. NE / Forevergreen Rd. (41.72584, -91.57089) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2022 | https://www.johnsoncountyiowa.gov/news/secondary-roads/2022-04-21/construction-north-liberty-and-forevergreen-roads-roundabout-begins | 
| Coralville,
                IA Johnson Co. United States | Jones Blvd. / Spring Rose Cir. / Green Haven Blvd. (41.70355, -91.62132) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 45.7200 | Other (At-Grade) Single-Lane | 2022 | |
| Coraopolis,
                PA Allegheny Co. United States | (parking) (40.46293, -80.17648) | Other Unknown | Unknown Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | ||
| Coraopolis,
                PA Allegheny Co. United States | GSK Dr. / (parking) (40.45956, -80.17559) | Other Existing | Unknown Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | ||
| Coraopolis,
                PA Allegheny Co. United States | GSK Dr. / (parking) (40.46049, -80.17626) | Other Existing | Unknown Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | ||
| Corbin,
                KY Whitley Co. United States | Black Diamond Rd. / SR 727 (5th Street Rd.) (36.92753, -84.14583) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 42.6720 | Other (At-Grade) Single-Lane | 2024 | Intersection moved 150-200 feet to the west. | 
| Corbridge,
                England Northumberland United Kingdom | A68 / B6529 (Stagshaw Rd.) / A69 WB Ramps (54.98184, -2.02371) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | ||
| Corbridge,
                England Northumberland United Kingdom | A68 / B6529 (Stagshaw Rd.) / A69 WB Ramps (54.98196, -2.02370) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways | Freeway Ramps (Grade-Separated) Single-Lane | ||
| Corcoran,
                CA Kings Co. United States | SR 43 / SR 137 / Whitley Ave. (36.09805, -119.54584) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 46.3214 | Other (At-Grade) Single-Lane | 2017 | ICD estimated from Google Maps linework. | 
| Cordes Junction,
                AZ Yavapai Co. United States | Cordes Lakes Rd. / I-17 NB Off-ramp (34.32691, -112.11991) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 37.4800 | Freeway Ramps (Grade-Separated) Single-Lane | 2013 | date: https://www.azdot.gov/mobile/media/news/2013/07/24/modernized-cordes-junction-traffic-interchange-aids-local-regional-travel ICD estimated from Google Maps linework. | 
| Cordes Junction,
                AZ Yavapai Co. United States | E Cordes Lakes Rd. / E Arcosanti Rd. / AZ 69 NB On-ramp (34.33270, -112.12483) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 43.3949 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2013 | date: https://www.azdot.gov/mobile/media/news/2013/07/24/modernized-cordes-junction-traffic-interchange-aids-local-regional-travel ICD estimated from Google Maps linework. | 
| Cordoba,
                Cordoba Córdoba Argentina | Avenida Curazao [Calle Curazao / Avenida Renault / Calle Furlong / Calle 6 de Septiembre / Calle José Benito Cottolengo] (-31.47261, -64.23872) | Other Existing | Uncontrolled None | 6 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Cordoba,
                Cordoba Córdoba Argentina | Puente Gauss / Calle Miguel Lillo / Calle Costanera Suquia Norte / Avenida Ramón J. Cárcano Ramps (-31.37058, -64.25143) | Rotary Existing | All-Way Yield None | 6 Approaches 0 Driveways | Freeway Ramps (Grade-Separated) Multilane (3+ Lane) | ||
| Corenc,
                Auvergne-Rhone-Alpes Isère France | Avenue du Vercors / Avenue de Belledonne (45.21173, 5.76306) | Other Existing | Other Unknown | 4 Approaches 0 Driveways 21.8762 | Other (At-Grade) Single-Lane | Parking in circulatory roadway. ICD estimated from Google Maps linework. | |
| Corenc,
                Auvergne-Rhone-Alpes Isère France | Avenue de la Condamine / Allée des Séquoias / Allée de la Piscine (45.21100, 5.75096) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 23.5593 | Other (At-Grade) Single-Lane | ICD estimated from Google Maps linework. | |
| Corinth,
                MS Alcorn Co. United States | Harper Rd. / Droke Rd. (34.92347, -88.49539) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2010 | School 1000' west of roundabout. | 
| Corinth,
                Peloponnese Korinthia Greece | Patron / Georgiou Papandreou (37.93753, 22.92335) | Other Existing | All-Way Stop None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Corio,
                Victoria Greater Geelong Australia | C704 (Bacchus Marsh Rd.) / Plantation Rd. (-38.06658, 144.35862) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Cork,
                Co Cork Ireland | Airport Road Roundabout [N27 (Kinsale Rd.) / Avenue 2000] (51.84854, -8.47605) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Multilane (2 Lane, unspecified) | ||
| Cork,
                Co Cork Ireland | N40-N22 (South Ring Road) / N22 EB Ramps (51.87546, -8.57151) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways | Freeway Ramps (Grade-Separated) Single-Lane | ||
| Cork,
                Co Cork Ireland | N40-N22 (South Ring Road) / N22 WB Ramps (51.87417, -8.57157) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways | Freeway Ramps (Grade-Separated) Single-Lane | ||
| Cork Great, Ireland | R119 (Dublin Rd.) / R761 (Dublin Rd.) / M11 Ramps (53.21355, -6.11903) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways | Freeway Ramps (Grade-Separated) Single-Lane | ||
| Corlăteni,
                Rîșcani District Corlăteni Moldova | E583-M14 / R6 / Strada Decebal (47.78729, 27.88530) | Unknown Existing | Unknown None | 4 Approaches 0 Driveways | Other (At-Grade) Multilane (2 Lane, unspecified) | ||
| Cornelius,
                OR Washington Co. United States | N Davis St. / N 19th St. (45.52343, -123.04837) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-lane w/ Traversable Central Island | 2024 | |
| Corner Brook,
                NL Division 5 Canada | Confederation Dr. / West Valley Rd. (48.94181, -57.91709) | Roundabout Existing | All-Way Yield None | 3 Approaches 1 Driveways 35.0000 | Other (At-Grade) Single-Lane | 2021 | http://ntv.ca/corner-brook-opens-first-roundabout/ | 
| Corner Canyon,
                UT Salt Lake Co. United States | Aintree Ave. / Tuscalee Way (40.50470, -111.84045) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | No splitter islands on north. east, or south legs. | |
| Corning,
                NY Steuben Co. United States | Robert Dann Blvd. / Aurene Dr. / Creekside Dr. (42.16506, -77.11484) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 40.7216 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2003 | Access permits for research and development plant. ICD estimated from Google Maps linework. | 
| Cornubia,
                Queensland Logan Australia | California Creek Rd. / Carbrook Rd. (-27.66387, 153.21318) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Cornubia,
                Queensland Logan Australia | California Creek Rd. / Norman Dr. (-27.66498, 153.20768) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Cornwall,
                ON Stormont, Dundas and Glengarry Canada | Lemay St. / 13th St. / Reneal St. / Sydney St. (45.03504, -74.73812) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 34.0000 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2024 | Sydney St is approach only. https://www.cornwall.ca/en/live-here/2023-reconstruction-thirteenth-street_sydney_street.aspx | 
| Cornwall,
                PE Queens Canada | Capital Dr. (Trans Canada Hwy.) / York Point Rd. (PE-248) (46.25500, -63.19366) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 59.4589 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2017 | Year Completed estimated (2016-2017). ICD estimated from Google Maps linework. | 
| Cornwall,
                ON Stormont, Dundas and Glengarry Canada | Brookdale Ave. / 7th St. W (45.02273, -74.74777) | Rotary Existing | Other None | 4 Approaches 0 Driveways 139.2902 | Other (At-Grade) Multilane (2 Lane, unspecified) | Yield signs within circulatory roadway at Brookdale approaches. ICD estimated from Google Maps linework. | |
| Cornwall,
                PE Queens Canada | Cornwall Rd. / Trans Canada Hwy EB Ramps (46.24850, -63.21670) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 42.0000 | Freeway Ramps (Grade-Separated) Single-Lane | 2019 | |
| Cornwall,
                PE Queens Canada | Cornwall Rd. / Trans Canada Hwy WB Ramps (46.24966, -63.21614) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 42.0000 | Freeway Ramps (Grade-Separated) Single-Lane | 2019 | |
| Coronado,
                CA San Diego Co. United States | Star Park Cir. [Flora Ave. / Loma Ave. / Park Pl.] (32.68400, -117.18101) | Other Existing | All-Way Stop Unknown | 5 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | Parking along circulatory roadway. | |
| Coronado,
                CA San Diego Co. United States | Pomona Ave. / 7th St. / Adella Ave. (32.68808, -117.17250) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 30.4800 | Other (At-Grade) Single-Lane | 2008 | Installed initially as temporary construction with no landscaping in 2008. Made permanent in 2014. | 
| Coronado,
                CA San Diego Co. United States | Bay Circle (32.68240, -117.16935) | Other Existing | Unknown Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Multilane (2 Lane, unspecified) | ||
| Corroios,
                Setúbal Seixal Portugal | N10 (Avenida 25 de Abril) / CM1013 / Av Arsenal do Alfeite (38.63997, -9.15016) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Multilane (2 Lane, unspecified) | ||
| Corroios,
                Setúbal Seixal Portugal | Rua do Rouxinol / Rua da Igreja / Avenida Baía Natural do Seixal Ramps (38.64207, -9.14887) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | ||
| Cortlandt Manor,
                NY Northern Westchester Co. United States | Oregon Rd. / Jay Rd. / Westbrook Ct. (41.32445, -73.88305) | Roundabout Existing | All-Way Yield None | 5 Approaches 0 Driveways 30.4953 | Other (At-Grade) Single-Lane | 2006 | ICD estimated from Google Maps linework. | 
| Corvallis,
                OR Benton Co. United States | SW 53rd St. / SW West Hills Rd. (44.55634, -123.31206) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 31.4882 | Other (At-Grade) Single-Lane | 2015 | ICD estimated from Google Maps linework. | 
| Cosenza,
                Calabria Cosenza Italy | Piazza Europa (39.30677, 16.24771) | Other Unknown | Unknown Unknown | 4 Approaches 0 Driveways | Other (At-Grade) Multilane (2 Lane, unspecified) | Pedestrian access to central island; parking along circulatory roadway. | |
| Cosenza,
                Calabria Cosenza Italy | Via Guglielmo Marconi / Via Giuseppe Tommasi / Via Madre Venerabile Elena Aiello (39.31289, 16.24451) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Cosenza,
                Calabria Cosenza Italy | (SP90 connector) / (Viale Giovanni Formoso connector) / Via Guglielmo Marconi Ramps / Via Veterani dello Sport (39.31911, 16.24349) | Roundabout Existing | All-Way Yield Unknown | 5 Approaches 0 Driveways | Freeway Ramps (Grade-Separated) Single-Lane | ||
| Cosenza,
                Calabria Cosenza Italy | Via Panebianco / SP90 (39.31954, 16.24526) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Costa de Caparica,
                Setúbal Almada Portugal | N10-1 (Avenida de Dom Sebastião) / Rua Engenheiro Henrique Mendia (38.63925, -9.23049) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways | Other (At-Grade) Single-Lane |