| Chouteau | 5,700 | Fort Benton | Montana | Missoula-Billings-Butte, MT | View → |
| Chowan | 14,000 | Edenton | North Carolina | Norfolk, VA-Salisbury, MD | View → |
| Christian | 33,000 | Taylorville | Illinois | Champaign-Peoria, IL | View → |
| Christian | 72,000 | Hopkinsville | Kentucky | Nashville, TN | View → |
| Christian | 89,000 | Nixa | Missouri | Springfield, MO | View → |
| Churchill | 25,500 | Fallon | Nevada | Las Vegas-Reno, NV | View → |
| Cibola | 26,500 | Grants | New Mexico | Albuquerque, NM | View → |
| Cimarron | 2,300 | Boise City | Oklahoma | Amarillo, TX | View → |
| Citrus | 155,600 | Crystal River | Florida | Tampa, FL | View → |
| Clackamas | 425,000 | Oregon City | Oregon | Portland, OR | View → |
| Claiborne | 9,200 | Port Gibson | Mississippi | Jackson, MS | View → |
| Claiborne | 32,000 | Tazewell | Tennessee | Knoxville-Chattanooga, TN | View → |
| Claiborne | 16,000 | Homer | Louisiana | Shreveport, LA | View → |
| Clallam | 77,000 | Port Angeles | Washington | Seattle, WA | View → |
| Clare | 30,500 | Clare | Michigan | Traverse City, MI | View → |
| Clarendon | 34,000 | Manning | South Carolina | Columbia, SC | View → |
| Clarion | 38,000 | Clarion | Pennsylvania | Pittsburgh-Erie, PA | View → |
| Clark | 1,000 | Dubois | Idaho | Boise-Pocatello, ID | View → |
| Clark | 15,500 | Marshall | Illinois | Champaign-Peoria, IL | View → |
| Clark | 136,000 | Springfield | Ohio | Cincinnati-Dayton, OH | View → |
| Clark | 2,460,000 | Las Vegas | Nevada | Las Vegas-Reno, NV | View → |
| Clark | 37,000 | Winchester | Kentucky | Lexington-Bowling Green, KY | View → |
| Clark | 22,000 | Arkadelphia | Arkansas | Little Rock, AR | View → |
| Clark | 120,000 | Jeffersonville | Indiana | Louisville, KY-Evansville, IN | View → |
| Clark | 35,000 | Neillsville | Wisconsin | Madison-La Crosse, WI | View → |
| Clark | 7,000 | Kahoka | Missouri | Ottumwa, IA | View → |
| Clark | 515,000 | Vancouver | Washington | Portland, OR | View → |
| Clark | 3,700 | Clark | South Dakota | Sioux Falls-Rapid City, SD | View → |
| Clark | 2,000 | Ashland | Kansas | Wichita, KS | View → |
| Clarke | 130,000 | Athens | Georgia | Atlanta, GA | View → |
| Clarke | 9,600 | Osceola | Iowa | Des Moines, IA | View → |
| Clarke | 23,100 | Jackson | Alabama | Mobile, AL-Panama City, FL | View → |
| Clarke | 16,000 | Quitman | Mississippi | Tupelo-Meridian-Greenwood, MS | View → |
| Clarke | 14,500 | Berryville | Virginia | Washington, DC | View → |
| Clatsop | 41,000 | Astoria | Oregon | Portland, OR | View → |
| Clay | 11,000 | Hayesville | North Carolina | Atlanta, GA | View → |
| Clay | 14,200 | Ashland | Alabama | Birmingham-Huntsville, AL | View → |
| Clay | 14,000 | Louisville | Illinois | Champaign-Peoria, IL | View → |
| Clay | 8,800 | Clay | West Virginia | Charleston-Bluefield, WV | View → |
| Clay | 65,000 | Moorhead | Minnesota | Fargo, ND | View → |
| Clay | 27,000 | Brazil | Indiana | Indianapolis-Fort Wayne, IN | View → |
| Clay | 224,200 | Orange Park | Florida | Jacksonville-Tallahassee, FL | View → |
| Clay | 260,000 | Liberty | Missouri | Kansas City, MO | View → |
| Clay | 20,000 | Manchester | Kentucky | Lexington-Bowling Green, KY | View → |
| Clay | 6,400 | Clay Center | Nebraska | Lincoln, NE | View → |
| Clay | 3,000 | Fort Gaines | Georgia | Macon-Columbus, GA | View → |
| Clay | 7,800 | Celina | Tennessee | Nashville, TN | View → |
| Clay | 16,500 | Spencer | Iowa | Omaha, NE-Sioux City, IA | View → |
| Clay | 14,000 | Piggott | Arkansas | Paducah, KY | View → |
| Clay | 14,400 | Vermillion | South Dakota | Sioux Falls-Rapid City, SD | View → |
