| City | Region | Country | Time Zone | Population | |
|---|---|---|---|---|---|
| Camas | Washington | United States | Pacific Daylight Time | 21,846 | |
| Fort Walton Beach | Florida | United States | Central Daylight Time | 21,817 | |
| Geneva | Illinois | United States | Central Daylight Time | 21,806 | |
| Brent | Florida | United States | Central Daylight Time | 21,804 | |
| South Euclid | Ohio | United States | Eastern Daylight Time | 21,794 | |
| Brushy Creek | Texas | United States | Central Daylight Time | 21,764 | |
| Windsor | Colorado | United States | Mountain Daylight Time | 21,751 | |
| Westchase | Florida | United States | Eastern Daylight Time | 21,747 | |
| Sugar Hill | Georgia | United States | Eastern Daylight Time | 21,747 | |
| Chillicothe | Ohio | United States | Eastern Daylight Time | 21,727 | |
| South Lake Tahoe | California | United States | Pacific Daylight Time | 21,706 | |
| Anthem | Arizona | United States | Mountain Standard Time | 21,700 | |
| West Carson | California | United States | Pacific Daylight Time | 21,699 | |
| Massapequa | New York | United States | Eastern Daylight Time | 21,685 | |
| Canton | Massachusetts | United States | Eastern Daylight Time | 21,679 | |
| Roselle | New Jersey | United States | Eastern Daylight Time | 21,670 | |
| Lincoln | Rhode Island | United States | Eastern Daylight Time | 21,670 | |
| Lumberton | North Carolina | United States | Eastern Daylight Time | 21,667 | |
| Taylors | South Carolina | United States | Eastern Daylight Time | 21,617 | |
| Yucca Valley | California | United States | Pacific Daylight Time | 21,600 |
