| Site | State | Type | Population |
|---|---|---|---|
| Abilene, TX | Texas | City | 116219 |
| Aberdeen, MD | Maryland | City | 13984 |
| Aberdeen, WA | Washington | City | 13984 |
| Adams County, CO | Colorado | City | 420833 |
| Akron, OH | Ohio | City | 207934 |
| Alachua County, FL | Florida | City | 243574 |
| Albany, GA | Georgia | City | 75825 |
| Albany, NY | New York | City | 94172 |
| Albany, OR | Oregon | City | 50158 |
| Albuquerque, NM | New Mexico | City | 518271 |
| Alexandria, LA | Louisiana | City | 45857 |
| Alexandria, VA | Virginia | City | 140024 |
| Aliquippa, PA | Pennsylvania | City | 10759 |
| Allentown, PA | Pennsylvania | City | 107117 |
| Alliance, OH | Ohio | City | 22380 |
| Altamonte Springs, FL | Florida | City | 39942 |
| Alton, IL | Illinois | City | 29414 |
| Amarillo, TX | Texas | City | 189389 |
| Ambridge, PA | Pennsylvania | City | 7050 |
| Anaheim, CA | California | City | 333249 |
| Anchorage, AK | Alaska | City | 279671 |
| Anderson, SC | South Carolina | City | 26404 |
| Ankeny, IA | Iowa | City | 45753 |
| Ann Arbor, MI | Michigan | City | 112852 |
| Annapolis, MD | Maryland | City | 36603 |
| Anne Arundel County, MD | Maryland | City | 510507 |
| Anniston, AL | Alabama | City | 23689 |
| Antioch, CA | California | City | 99619 |
| Appleton, WI | Wisconsin | City | 70017 |
| Arlington County, VA | Virginia | City | 204,568 |
| Arlington, TX | Texas | City | 371038 |
| Arnold, PA | Pennsylvania | City | 5250 |
| Arvada, CO | Colorado | City | 106328 |
| Asbury Park, NJ | New Jersey | City | 16577 |
| Asheville, NC | North Carolina | City | 73875 |
| Ashland, KY | Kentucky | City | 21352 |
| Ashland, OR | Oregon | City | 21299 |
| Ashtabula, OH | Ohio | City | 19824 |
| Athens, AL | Alabama | City | 22936 |
| Athens, GA | Georgia | City | 85576 |
| Atlanta, GA | Georgia | City | 519145 |
| Atlantic Beach, FL | Florida | City | 13280 |
| Atlantic City, NJ | New Jersey | City | 39684 |
| Auburn, MA | Massachusetts | City | 16259 |
| Auburn, WA | Washington | City | 49808 |
| Aurora, CO | Colorado | City | 311794 |
| Aurora, IL | Illinois | City | 197899 |
| Austin, TX | Texas | City | 743074 |
| Baker, LA | Louisiana | City | 13575 |
