| Buena Vista City | 6,800 | Buena Vista | Virginia | Roanoke-Harrisonburg, VA | View → |
| Buffalo | 51,000 | Kearney | Nebraska | Lincoln, NE | View → |
| Buffalo | 13,500 | Alma | Wisconsin | Madison-La Crosse, WI | View → |
| Buffalo | 2,100 | Gann Valley | South Dakota | Sioux Falls-Rapid City, SD | View → |
| Bullitt | 82,000 | Shepherdsville | Kentucky | Louisville, KY-Evansville, IN | View → |
| Bulloch | 79,000 | Statesboro | Georgia | Savannah-Augusta, GA | View → |
| Bullock | 10,400 | Union Springs | Alabama | Montgomery-Dothan, AL | View → |
| Buncombe | 270,000 | Asheville | North Carolina | Greenville, SC-Asheville, NC | View → |
| Bureau | 34,000 | Princeton | Illinois | Davenport, IA-Moline, IL | View → |
| Burke | 2,100 | Bowbells | North Dakota | Bismarck, ND | View → |
| Burke | 91,000 | Morganton | North Carolina | Charlotte-Greensboro, NC | View → |
| Burke | 23,000 | Waynesboro | Georgia | Savannah-Augusta, GA | View → |
| Burleigh | 100,000 | Bismarck | North Dakota | Bismarck, ND | View → |
| Burleson | 20,500 | Caldwell | Texas | Austin-Waco, TX | View → |
| Burlington | 466,468 | Mount Laurel | New Jersey | Philadelphia, PA | View → |
| Burnet | 50,000 | Burnet | Texas | Austin-Waco, TX | View → |
| Burnett | 16,000 | Grantsburg | Wisconsin | Minneapolis-St. Paul, MN | View → |
| Burt | 6,500 | Tekamah | Nebraska | Omaha, NE-Sioux City, IA | View → |
| Butler | 15,000 | Allison | Iowa | Cedar Rapids, IA | View → |
| Butler | 391,500 | Hamilton | Ohio | Cincinnati-Dayton, OH | View → |
| Butler | 12,500 | Morgantown | Kentucky | Lexington-Bowling Green, KY | View → |
| Butler | 19,100 | Greenville | Alabama | Montgomery-Dothan, AL | View → |
| Butler | 8,100 | David City | Nebraska | Omaha, NE-Sioux City, IA | View → |
| Butler | 42,000 | Poplar Bluff | Missouri | Paducah, KY | View → |
| Butler | 195,000 | Butler | Pennsylvania | Pittsburgh-Erie, PA | View → |
| Butler | 67,000 | El Dorado | Kansas | Wichita, KS | View → |
| Butte | 2,600 | Arco | Idaho | Boise-Pocatello, ID | View → |
| Butte | 220,000 | Chico | California | Sacramento, CA | View → |
| Butte | 10,500 | Belle Fourche | South Dakota | Sioux Falls-Rapid City, SD | View → |
| Butts | 25,000 | Jackson | Georgia | Atlanta, GA | View → |
| Cabarrus | 235,000 | Concord | North Carolina | Charlotte-Greensboro, NC | View → |
| Cabell | 91,000 | Huntington | West Virginia | Charleston-Bluefield, WV | View → |
| Cache | 135,000 | Logan | Utah | Salt Lake City, UT | View → |
| Caddo | 28,000 | Anadarko | Oklahoma | Oklahoma City, OK | View → |
| Caddo | 245,000 | Shreveport | Louisiana | Shreveport, LA | View → |
| Calaveras | 46,000 | San Andreas | California | Sacramento, CA | View → |
| Calcasieu | 205,000 | Lake Charles | Louisiana | New Orleans-Baton Rouge, LA | View → |
| Caldwell | 44,000 | Lockhart | Texas | Austin-Waco, TX | View → |
| Caldwell | 83,000 | Lenoir | North Carolina | Charlotte-Greensboro, NC | View → |
| Caldwell | 9,000 | Kingston | Missouri | Kansas City, MO | View → |
| Caldwell | 13,000 | Princeton | Kentucky | Paducah, KY | View → |
| Caldwell | 10,000 | Columbia | Louisiana | Shreveport, LA | View → |
| Caledonia | 29,000 | St. Johnsbury | Vermont | Burlington, VT | View → |
| Calhoun | 116,400 | Anniston | Alabama | Birmingham-Huntsville, AL | View → |
| Calhoun | 7,100 | Grantsville | West Virginia | Charleston-Bluefield, WV | View → |
| Calhoun | 14,119 | St. Matthews | South Carolina | Columbia, SC | View → |
| Calhoun | 9,600 | Rockwell City | Iowa | Des Moines, IA | View → |
| Calhoun | 132,000 | Battle Creek | Michigan | Grand Rapids, MI | View → |
| Calhoun | 22,000 | Port Lavaca | Texas | Houston, TX | View → |
| Calhoun | 5,000 | Hampton | Arkansas | Little Rock, AR | View → |
