| Stanley | 3,100 | Fort Pierre | South Dakota | Sioux Falls-Rapid City, SD | View → |
| Stanly | 65,000 | Albemarle | North Carolina | Charlotte-Greensboro, NC | View → |
| Stanton | 6,000 | Stanton | Nebraska | Omaha, NE-Sioux City, IA | View → |
| Stanton | 2,000 | Johnson City | Kansas | Wichita, KS | View → |
| Stark | 32,000 | Dickinson | North Dakota | Bismarck, ND | View → |
| Stark | 5,900 | Toulon | Illinois | Champaign-Peoria, IL | View → |
| Stark | 370,000 | Canton | Ohio | Cleveland-Youngstown, OH | View → |
| Starke | 23,000 | Knox | Indiana | Chicago, IL | View → |
| Starr | 66,000 | Rio Grande City | Texas | San Antonio-Corpus Christi, TX | View → |
| Staunton City | 25,000 | Staunton | Virginia | Roanoke-Harrisonburg, VA | View → |
| Ste. Genevieve | 18,300 | Ste. Genevieve | Missouri | St. Louis, MO | View → |
| Stearns | 165,000 | St. Cloud | Minnesota | Minneapolis-St. Paul, MN | View → |
| Steele | 2,000 | Finley | North Dakota | Fargo, ND | View → |
| Steele | 37,000 | Owatonna | Minnesota | Minneapolis-St. Paul, MN | View → |
| Stephens | 26,000 | Toccoa | Georgia | Greenville, SC-Asheville, NC | View → |
| Stephens | 9,200 | Breckenridge | Texas | Lubbock-Abilene, TX | View → |
| Stephens | 45,500 | Duncan | Oklahoma | Wichita Falls, TX | View → |
| Stephenson | 45,000 | Freeport | Illinois | Chicago, IL | View → |
| Sterling | 1,300 | Sterling City | Texas | El Paso-Odessa, TX | View → |
| Steuben | 34,000 | Angola | Indiana | Indianapolis-Fort Wayne, IN | View → |
| Steuben | 96,000 | Corning | New York | Scranton, PA-Binghamton, NY | View → |
| Stevens | 9,700 | Morris | Minnesota | Minneapolis-St. Paul, MN | View → |
| Stevens | 47,000 | Colville | Washington | Spokane, WA | View → |
| Stevens | 5,500 | Hugoton | Kansas | Wichita, KS | View → |
| Stewart | 6,100 | Lumpkin | Georgia | Macon-Columbus, GA | View → |
| Stewart | 14,000 | Dover | Tennessee | Nashville, TN | View → |
| Stillwater | 9,500 | Columbus | Montana | Missoula-Billings-Butte, MT | View → |
| Stoddard | 29,000 | Dexter | Missouri | Paducah, KY | View → |
| Stokes | 45,000 | King | North Carolina | Charlotte-Greensboro, NC | View → |
| Stone | 12,000 | Mountain View | Arkansas | Little Rock, AR | View → |
| Stone | 20,000 | Wiggins | Mississippi | Mobile, AL-Panama City, FL | View → |
| Stone | 32,000 | Branson West | Missouri | Springfield, MO | View → |
| Stonewall | 1,400 | Aspermont | Texas | Lubbock-Abilene, TX | View → |
| Storey | 4,200 | Virginia City | Nevada | Las Vegas-Reno, NV | View → |
| Story | 98,000 | Ames | Iowa | Des Moines, IA | View → |
| Strafford | 130,000 | Dover | New Hampshire | Boston-Springfield, MA | View → |
| Stutsman | 21,000 | Jamestown | North Dakota | Fargo, ND | View → |
| Sublette | 10,000 | Pinedale | Wyoming | Salt Lake City, UT | View → |
| Suffolk | 820,000 | Boston | Massachusetts | Boston-Springfield, MA | View → |
| Suffolk | 1,510,000 | Huntington | New York | New York, NY | View → |
| Suffolk City | 95,000 | Suffolk | Virginia | Norfolk, VA-Salisbury, MD | View → |
| Sullivan | 44,000 | Claremont | New Hampshire | Burlington, VT | View → |
| Sullivan | 20,500 | Sullivan | Indiana | Indianapolis-Fort Wayne, IN | View → |
| Sullivan | 75,000 | Monticello | New York | New York, NY | View → |
| Sullivan | 6,500 | Milan | Missouri | Ottumwa, IA | View → |
| Sullivan | 6,000 | Dushore | Pennsylvania | Scranton, PA-Binghamton, NY | View → |
| Sullivan | 159,000 | Kingsport | Tennessee | Tri-Cities, TN/VA | View → |
| Sully | 1,400 | Onida | South Dakota | Sioux Falls-Rapid City, SD | View → |
| Summers | 12,000 | Hinton | West Virginia | Charleston-Bluefield, WV | View → |
| Summit | 540,000 | Akron | Ohio | Cleveland-Youngstown, OH | View → |
