| Richmond | 9,300 | Warsaw | Virginia | Richmond, VA | View → |
| Richmond | 205,000 | Augusta | Georgia | Savannah-Augusta, GA | View → |
| Richmond City | 230,000 | Richmond | Virginia | Richmond, VA | View → |
| Riley | 79,000 | Manhattan | Kansas | Wichita, KS | View → |
| Ringgold | 4,700 | Mount Ayr | Iowa | Des Moines, IA | View → |
| Rio Arriba | 39,000 | Espanola | New Mexico | Albuquerque, NM | View → |
| Rio Blanco | 6,000 | Meeker | Colorado | Denver-Colorado Springs, CO | View → |
| Rio Grande | 11,000 | Monte Vista | Colorado | Denver-Colorado Springs, CO | View → |
| Ripley | 29,000 | Batesville | Indiana | Cincinnati-Dayton, OH | View → |
| Ripley | 13,000 | Doniphan | Missouri | Paducah, KY | View → |
| Ritchie | 9,500 | Harrisville | West Virginia | Wheeling-Clarksburg-Parkersburg, WV | View → |
| Riverside | 2,600,000 | Riverside | California | Los Angeles-San Diego, CA | View → |
| Roane | 13,500 | Spencer | West Virginia | Charleston-Bluefield, WV | View → |
| Roane | 53,000 | Kingston | Tennessee | Knoxville-Chattanooga, TN | View → |
| Roanoke | 94,000 | Roanoke | Virginia | Roanoke-Harrisonburg, VA | View → |
| Roanoke City | 100,000 | Roanoke | Virginia | Roanoke-Harrisonburg, VA | View → |
| Roberts | 900 | Miami | Texas | Amarillo, TX | View → |
| Roberts | 10,200 | Sisseton | South Dakota | Sioux Falls-Rapid City, SD | View → |
| Robertson | 17,000 | Hearne | Texas | Austin-Waco, TX | View → |
| Robertson | 2,200 | Mount Olivet | Kentucky | Cincinnati-Dayton, OH | View → |
| Robertson | 75,000 | Springfield | Tennessee | Nashville, TN | View → |
| Robeson | 118,000 | Lumberton | North Carolina | Charleston-Florence, SC | View → |
| Rock | 1,400 | Bassett | Nebraska | Lincoln, NE | View → |
| Rock | 163,000 | Janesville | Wisconsin | Madison-La Crosse, WI | View → |
| Rock | 9,700 | Luverne | Minnesota | Sioux Falls-Rapid City, SD | View → |
| Rock Island | 142,000 | Moline | Illinois | Davenport, IA-Moline, IL | View → |
| Rockbridge | 22,000 | Lexington | Virginia | Roanoke-Harrisonburg, VA | View → |
| Rockcastle | 17,000 | Mount Vernon | Kentucky | Lexington-Bowling Green, KY | View → |
| Rockdale | 93,000 | Conyers | Georgia | Atlanta, GA | View → |
| Rockingham | 320,000 | Derry | New Hampshire | Boston-Springfield, MA | View → |
| Rockingham | 92,000 | Reidsville | North Carolina | Charlotte-Greensboro, NC | View → |
| Rockingham | 83,000 | Harrisonburg | Virginia | Roanoke-Harrisonburg, VA | View → |
| Rockland | 330,000 | New City | New York | New York, NY | View → |
| Rockwall | 123,000 | Rockwall | Texas | Dallas-Fort Worth, TX | View → |
| Roger Mills | 3,650 | Cheyenne | Oklahoma | Oklahoma City, OK | View → |
| Rogers | 93,600 | Claremore | Oklahoma | Tulsa, OK-Fort Smith, AR | View → |
| Rolette | 14,000 | Belcourt | North Dakota | Bismarck, ND | View → |
| Rooks | 4,900 | Stockton | Kansas | Wichita, KS | View → |
| Roosevelt | 19,500 | Portales | New Mexico | Amarillo, TX | View → |
| Roosevelt | 11,000 | Wolf Point | Montana | Bismarck, ND | View → |
| Roscommon | 24,000 | Houghton Lake | Michigan | Traverse City, MI | View → |
| Roseau | 15,500 | Roseau | Minnesota | Fargo, ND | View → |
| Rosebud | 9,000 | Forsyth | Montana | Missoula-Billings-Butte, MT | View → |
| Ross | 77,000 | Chillicothe | Ohio | Columbus, OH | View → |
| Routt | 28,000 | Steamboat Springs | Colorado | Denver-Colorado Springs, CO | View → |
| Rowan | 146,000 | Salisbury | North Carolina | Charlotte-Greensboro, NC | View → |
| Rowan | 25,000 | Morehead | Kentucky | Lexington-Bowling Green, KY | View → |
| Runnels | 10,400 | Ballinger | Texas | Lubbock-Abilene, TX | View → |
| Rush | 16,500 | Rushville | Indiana | Indianapolis-Fort Wayne, IN | View → |
| Rush | 3,100 | La Crosse | Kansas | Wichita, KS | View → |
