| State Name | County Name | City |
|---|---|---|
| Florida | Broward | Coconut Creek |
| Pennsylvania | York | Codorus |
| Wyoming | Park | Cody |
| Idaho | Kootenai | Coeur d'Alene |
| Kansas | Montgomery | Coffeyville |
| Massachusetts | Norfolk | Cohasset |
| New York | Albany | Cohoes |
| Minnesota | Wright | Cokato |
| Kansas | Thomas | Colby |
| Connecticut | New London | Colchester |
| Vermont | Chittenden | Colchester |
| Kentucky | Campbell | Cold Spring |
| Minnesota | Stearns | Cold Spring |
| New York | Putnam | Cold Spring |
| New York | Suffolk | Cold Spring Harbor |
| Nevada | Washoe | Cold Springs |
| New York | Erie | Colden |
| Michigan | Branch | Coldwater |
| Ohio | Mercer | Coldwater |
| Pennsylvania | Berks | Colebrookdale |
| Texas | Coleman | Coleman |
| Pennsylvania | Lancaster | Colerain |
| Maryland | Montgomery | Colesville |
| California | Placer | Colfax |
| Washington | Whitman | Colfax |
| Alaska | Fairbanks North Star | College |
| Pennsylvania | Centre | College |
| Georgia | Fulton | College Park |
| Maryland | Prince George's | College Park |
| Washington | Walla Walla | College Place |
| Texas | Brazos | College Station |
| Tennessee | Hamilton | Collegedale |
| Pennsylvania | Montgomery | Collegeville |
| Texas | Tarrant | Colleyville |
| Pennsylvania | Allegheny | Collier |
| Tennessee | Shelby | Collierville |
| Pennsylvania | Delaware | Collingdale |
| New Jersey | Camden | Collingswood |
| New York | Erie | Collins |
| Connecticut | Hartford | Collinsville |
| Illinois | Madison | Collinsville |
| Oklahoma | Tulsa | Collinsville |
| Virginia | Henry | Collinsville |
| Illinois | Henry | Colona |
| New Jersey | Middlesex | Colonia |
| Tennessee | Sullivan | Colonial Heights |
| Virginia | Colonial Heights | Colonial Heights |
| Pennsylvania | Dauphin | Colonial Park |
| New York | Albany | Colonie |
| Arizona | Mohave | Colorado City |
| Texas | Mitchell | Colorado City |
| Colorado | El Paso | Colorado Springs |
| California | San Bernardino | Colton |
| New Jersey | Monmouth | Colts Neck |
| Connecticut | Tolland | Columbia |
| Illinois | Monroe | Columbia |
| Maryland | Howard | Columbia |
| Missouri | Boone | Columbia |
| Mississippi | Marion | Columbia |
| Pennsylvania | Lancaster | Columbia |
| South Carolina | Richland | Columbia |
| Tennessee | Maury | Columbia |
| Indiana | Whitley | Columbia City |
| Montana | Flathead | Columbia Falls |
| Minnesota | Anoka | Columbia Heights |
| Alabama | Shelby | Columbiana |
| Ohio | Columbiana | Columbiana |
| Colorado | Jefferson | Columbine |
| Georgia | Muscogee | Columbus |
| Indiana | Bartholomew | Columbus |
| Kansas | Cherokee | Columbus |
| Minnesota | Anoka | Columbus |
| Mississippi | Lowndes | Columbus |
| Nebraska | Platte | Columbus |
| Ohio | Franklin | Columbus |
| Texas | Colorado | Columbus |
| Wisconsin | Columbia | Columbus |
| California | Colusa | Colusa |
| Washington | Stevens | Colville |
| Texas | Comanche | Comanche |
| Florida | Polk | Combee Settlement |
| Texas | Cameron | Combes |
| Puerto Rico | Comerío | Comerío |
| Texas | Kendall | Comfort |
| New York | Suffolk | Commack |
| California | Los Angeles | Commerce |
| Georgia | Jackson | Commerce |
| Texas | Hunt | Commerce |
| Colorado | Adams | Commerce City |
| New Jersey | Cumberland | Commercial |
| California | Los Angeles | Compton |
| Michigan | Kalamazoo | Comstock Northwest |
| Michigan | Kent | Comstock Park |
| California | Contra Costa | Concord |
| Massachusetts | Middlesex | Concord |
| New York | Albany | Coeymans |
| New York | Broome | Colesville |
| Virginia | Westmoreland | Colonial Beach |
| Kentucky | Adair | Columbia |
| Wisconsin | Outagamie | Combined Locks |
