| Abbeville | 23,507 | Abbeville | South Carolina | Greenville, SC-Asheville, NC | View → |
| Acadia | 62,000 | Crowley | Louisiana | New Orleans-Baton Rouge, LA | View → |
| Accomack | 32,000 | Onancock | Virginia | Norfolk, VA-Salisbury, MD | View → |
| Ada | 540,000 | Boise | Idaho | Boise-Pocatello, ID | View → |
| Adair | 7,000 | Greenfield | Iowa | Des Moines, IA | View → |
| Adair | 18,500 | Columbia | Kentucky | Lexington-Bowling Green, KY | View → |
| Adair | 25,500 | Kirksville | Missouri | Ottumwa, IA | View → |
| Adair | 22,200 | Stilwell | Oklahoma | Tulsa, OK-Fort Smith, AR | View → |
| Adams | 2,300 | Hettinger | North Dakota | Bismarck, ND | View → |
| Adams | 4,400 | Council | Idaho | Boise-Pocatello, ID | View → |
| Adams | 65,000 | Quincy | Illinois | Champaign-Peoria, IL | View → |
| Adams | 27,500 | West Union | Ohio | Cincinnati-Dayton, OH | View → |
| Adams | 560,000 | Brighton | Colorado | Denver-Colorado Springs, CO | View → |
| Adams | 20,000 | Adams | Wisconsin | Green Bay, WI-Duluth, MN | View → |
| Adams | 103,000 | Gettysburg | Pennsylvania | Harrisburg, PA | View → |
| Adams | 36,000 | Decatur | Indiana | Indianapolis-Fort Wayne, IN | View → |
| Adams | 30,000 | Natchez | Mississippi | Jackson, MS | View → |
| Adams | 31,000 | Hastings | Nebraska | Lincoln, NE | View → |
| Adams | 3,600 | Corning | Iowa | Omaha, NE-Sioux City, IA | View → |
| Adams | 20,500 | Othello | Washington | Spokane, WA | View → |
| Addison | 37,000 | Middlebury | Vermont | Burlington, VT | View → |
| Aiken | 171,470 | Aiken | South Carolina | Savannah-Augusta, GA | View → |
| Aitkin | 16,000 | Aitkin | Minnesota | Green Bay, WI-Duluth, MN | View → |
| Alachua | 280,900 | Gainesville | Florida | Orlando-Gainesville, FL | View → |
| Alamance | 171,000 | Burlington | North Carolina | Charlotte-Greensboro, NC | View → |
| Alameda | 1,680,000 | Oakland | California | San Francisco, CA | View → |
| Alamosa | 16,500 | Alamosa | Colorado | Denver-Colorado Springs, CO | View → |
| Alaska | 741,100 | Anchorage | Alaska | Anchorage, AK | View → |
| Albany | 313,000 | Albany | New York | Albany-Utica-Elmira, NY | View → |
| Albany | 39,000 | Laramie | Wyoming | Denver-Colorado Springs, CO | View → |
| Albermarle | 114,000 | Charlottesville | Virginia | Roanoke-Harrisonburg, VA | View → |
| Alcona | 10,500 | Harrisville | Michigan | Traverse City, MI | View → |
| Alcorn | 36,000 | Corinth | Mississippi | Memphis, TN | View → |
| Alexander | 38,000 | Taylorsville | North Carolina | Charlotte-Greensboro, NC | View → |
| Alexander | 5,500 | Cairo | Illinois | Paducah, KY | View → |
| Alexandria City | 160,000 | Alexandria | Virginia | Washington, DC | View → |
| Alfalfa | 5,600 | Cherokee | Oklahoma | Oklahoma City, OK | View → |
| Alger | 9,200 | Munising | Michigan | Marquette, MI | View → |
| Allamakee | 14,000 | Waukon | Iowa | Cedar Rapids, IA | View → |
| Allegan | 120,000 | Holland | Michigan | Grand Rapids, MI | View → |
| Allegany | 47,000 | Wellsville | New York | Buffalo-Rochester-Syracuse, NY | View → |
| Allegany | 68,000 | Cumberland | Maryland | Washington, DC | View → |
| Alleghany | 11,200 | Sparta | North Carolina | Charlotte-Greensboro, NC | View → |
| Alleghany | 15,000 | Clifton Forge | Virginia | Roanoke-Harrisonburg, VA | View → |
| Allegheny | 1,225,000 | Pittsburgh | Pennsylvania | Pittsburgh-Erie, PA | View → |
| Allen | 103,300 | Lima | Ohio | Detroit, MI-Toledo, OH | View → |
| Allen | 390,000 | Fort Wayne | Indiana | Indianapolis-Fort Wayne, IN | View → |
| Allen | 21,000 | Scottsville | Kentucky | Nashville, TN | View → |
| Allen | 26,000 | Oberlin | Louisiana | New Orleans-Baton Rouge, LA | View → |
| Allen | 12,500 | Iola | Kansas | Wichita, KS | View → |
