| State Name | County Name | City |
|---|---|---|
| Pennsylvania | Lackawanna | Carbondale |
| Arizona | Maricopa | Carefree |
| Louisiana | Lafayette | Carencro |
| Maine | Aroostook | Caribou |
| Missouri | Jasper | Carl Junction |
| New York | Nassau | Carle Place |
| Illinois | Macoupin | Carlinville |
| Massachusetts | Middlesex | Carlisle |
| Ohio | Warren | Carlisle |
| Pennsylvania | Cumberland | Carlisle |
| California | San Diego | Carlsbad |
| New Mexico | Eddy | Carlsbad |
| New Jersey | Bergen | Carlstadt |
| New York | Orleans | Carlton |
| Oregon | Yamhill | Carlton |
| Illinois | Clinton | Carlyle |
| Louisiana | Calcasieu | Carlyss |
| Indiana | Hamilton | Carmel |
| Maine | Penobscot | Carmel |
| New York | Putnam | Carmel |
| New York | Putnam | Carmel Hamlet |
| California | Monterey | Carmel Valley Village |
| California | Monterey | Carmel-by-the-Sea |
| Illinois | White | Carmi |
| California | Sacramento | Carmichael |
| Pennsylvania | Allegheny | Carnegie |
| Maryland | Baltimore | Carney |
| New Jersey | Salem | Carneys Point |
| Pennsylvania | Allegheny | Carnot-Moon |
| Michigan | Tuscola | Caro |
| Illinois | DuPage | Carol Stream |
| Puerto Rico | Carolina | Carolina |
| North Carolina | New Hanover | Carolina Beach |
| North Carolina | Brunswick | Carolina Shores |
| New York | Tompkins | Caroline |
| Illinois | Kane | Carpentersville |
| Florida | Franklin | Carrabelle |
| North Carolina | Orange | Carrboro |
| Puerto Rico | Hatillo | Carrizales |
| Texas | Dimmit | Carrizo Springs |
| Iowa | Carroll | Carroll |
| New York | Chautauqua | Carroll |
| Pennsylvania | Perry | Carroll - Perry |
| Pennsylvania | Washington | Carroll - Washington |
| Pennsylvania | York | Carroll - York |
| Pennsylvania | Adams | Carroll Valley |
| Georgia | Carroll | Carrollton |
| Kentucky | Carroll | Carrollton |
| Missouri | Carroll | Carrollton |
| Texas | Dallas | Carrollton |
| Virginia | Isle of Wight | Carrollton |
| Florida | Hillsborough | Carrollwood |
| California | Los Angeles | Carson |
| Washington | Skamania | Carson |
| Nevada | Carson City | Carson City |
| Iowa | Pottawattamie | Carter Lake |
| New Jersey | Middlesex | Carteret |
| Georgia | Bartow | Cartersville |
| Illinois | Williamson | Carterville |
| Missouri | Jasper | Carthage |
| Mississippi | Leake | Carthage |
| New York | Jefferson | Carthage |
| Tennessee | Smith | Carthage |
| Texas | Panola | Carthage |
| Missouri | Pemiscot | Caruthersville |
| Massachusetts | Plymouth | Carver |
| Minnesota | Carver | Carver |
| Illinois | McHenry | Cary |
| North Carolina | Wake | Cary |
| California | Ventura | Casa Conejo |
| California | San Diego | Casa de Oro-Mount Helix |
| Arizona | Pinal | Casa Grande |
| Arizona | Pima | Casas Adobes |
| Virginia | Loudoun | Cascades |
| Maine | Cumberland | Casco |
| Illinois | St. Clair | Caseyville |
| Washington | Chelan | Cashmere |
| Wyoming | Natrona | Casper |
| Florida | Seminole | Casselberry |
| Missouri | Barry | Cassville |
| California | Los Angeles | Castaic |
| New York | Wyoming | Castile |
| Texas | Bexar | Castle Hills |
| Colorado | Douglas | Castle Pines |
| Colorado | Douglas | Castle Pines Village |
| Missouri | St. Louis | Castle Point |
| Colorado | Douglas | Castle Rock |
| Washington | Cowlitz | Castle Rock |
| Pennsylvania | Allegheny | Castle Shannon |
| Vermont | Rutland | Castleton |
| California | Monterey | Castroville |
| Texas | Medina | Castroville |
| Arizona | Pima | Catalina |
| Arizona | Pima | Catalina Foothills |
| Puerto Rico | Catano | Catano |
| Ohio | Wyandot | Carey |
| Iowa | Warren | Carlisle |
| California | Santa Barbara | Carpinteria |
| Ohio | Carroll | Carrollton |
| California | Alameda | Castro Valley |
