| Border towns | Bordering states and territories |
| Ardmore and Ardmore |  Tennessee /  Alabama |
| Lanett and West Point |  Georgia (U.S. state) / Alabama |
| Flomaton and Century |  Florida / / Alabama |
| Florala and Paxton |
| Phenix City and Columbus | Georgia (U.S. state) / Alabama |
| Bluewater and Bluewater |  Arizona /  California |
| Bullhead City and Laughlin | Arizona /  Nevada |
| Colorado City and Hildale | Arizona /  Utah |
| Ehrenberg and Blythe | Arizona / California |
| Fort Defiance | Arizona /  New Mexico |
| Fredonia and Kanab | Arizona / Utah |
| Mohave Valley and Needles | Arizona / California |
| Oljato-Monument Valley | Arizona / Utah |
| Parker | Arizona / California |
| Teec Nos Pos | Arizona / New Mexico |
| Window Rock |
| Yuma and Winterhaven | Arizona / California |
| Fort Smith and Arkoma |  Arkansas /  Oklahoma |
| Texarkana and Texarkana | Arkansas /  Texas |
| West Memphis, Southaven and Memphis | Arkansas /  Mississippi / Tennessee |
| Kings Beach and Incline Village | California / Nevada |
| New Pine Creek and New Pine Creek | California /  Oregon |
| South Lake Tahoe and Stateline | California / Nevada |
| Tulelake | California / Oregon |
| Verdi and Verdi | California / Nevada |
| Julesburg |  Colorado /  Nebraska |
| Greenwich and Port Chester |  Connecticut /  New York |
| Pawcatuck and Westerly | Connecticut /  Rhode Island |
| Delmar and Delmar |  Delaware /  Maryland |
| Marydel and Marydel |
| Washington, D.C., Oxon Hill, and Alexandria |  District of Columbia// Maryland /  Virginia |
| Chattahoochee | Florida / Georgia (U.S. state) |
| Esto | Florida / Alabama |
| Jennings | Florida / Georgia (U.S. state) |
| Pensacola | Florida / Alabama |
| Augusta and North Augusta | Georgia (U.S. state) /  South Carolina |
| Rossville and Chattanooga | Tennessee / Georgia (U.S. state) |
| St. Marys | Georgia (U.S. state) / Florida |
| Fruitland and Ontario |  Idaho / Oregon |
| Lewiston and Clarkston | Idaho /  Washington |
| Moscow and Pullman |
| Oldtown and Newport |
| Post Falls and Liberty Lake |
| Payette | Idaho / Oregon |
| Weiser |
| Chicago and Hammond |  Illinois /  Indiana |
| East St. Louis and St. Louis | Illinois /  Missouri |
| The Quad Cities: Rock Islands, Moline, East Moline, Davenport, and Bettendorf | Illinois /  Iowa |
| Jeffersonville and Louisville, Kentucky |
Indiana /  Kentucky |
| Michiana Shores and Michiana |
Indiana /  Michigan |
| New Albany and Louisville |
Indiana / Kentucky |
| Union City and Union City |
Indiana /  Ohio |
| Council Bluffs and Omaha |
Iowa / Nebraska |
| Dubuque and East Dubuques |
Iowa / Illinois |
| Sioux City, South Sioux City, and North Sioux City |
Iowa / Nebraska /  South Dakota |
| Overland Park, Kansas City (KCK), Leawood, Prairie Village, Mission Hills, Westwood, Westwood Hills, Mission Woods and Kansas City |
 Kansas / Missouri |
| Covington and Cincinnati |
Kentucky / Ohio |
| Fort Campbell and Clarksville | Tennessee / Kentucky |
| Fulton and South Fulton | Tennessee/ Kentucky |
| Vidalia and Natchez |  Louisiana / Mississippi |
| Kittery and Portsmouth, |  Maine /  New Hampshire |
| Cumberland and Ridgeley | Maryland /  West Virginia |
| Knoxville and Harper's Ferry |
| Fall River and North Tiverton |  Massachusetts / Rhode Island |
| South Attleboro and Pawtucket |
| Ironwood and Hurley | Michigan /  Wisconsin |
| Lambertville and Toledo | Michigan / Ohio |
| Lost Peninsula and Toledo |
| St. Vincent and Pembina |  Minnesota /  North Dakota |
| Breckenridge and Wahpeton |
| Duluth and Superior | Minnesota / Wisconsin |
| East Grand Forks and Grand Forks | Minnesota / North Dakota |
| La Crescent and La Crosse | Minnesota / Wisconsin |
| Lakeland and Hudson |
| Moorhead and Fargo | Minnesota / North Dakota |
| St. Vincent and Pembina |
| Winona |
Minnesota / Wisconsin |
| Fairview |
 Montana / North Dakota |
| Westby |
Minnesota / South Dakota |
| Henry |
Nebraska /  Wyoming |
| Whiteclay and Pine Ridge |
Nebraska / South Dakota |
| Denio |
Nevada / Oregon |
| Jackpot |
Nevada / Idaho |
| McDermitt |
Nevada / Oregon |
| Mesquite |
Nevada / Arizona |
| Owyhee |
Nevada / Idaho |
| Primm |
Nevada / California |
| West Wendover and Wendover |
Nevada / Utah |
| Nashua |
New Hampshire / Massachusetts |
| Camden and Philadelphia |
 New Jersey /  Pennsylvania |
| Carteret and New York City |
New Jersey / New York |
| Edgewater and New York City |
| Elizabeth and New York City |
| Englewood Cliffs and New York City |
| Guttenberg and New York City |
| Hoboken and New York City |
| Jersey City and New York City |
| Lambertville and New Hope |
New Jersey / Pennsylvania |
| Linden and New York City |
New Jersey / New York |
| North Bergen and New York City |
| Perth Amboy and New York City |
| Phillipsburg and Easton |
New Jersey / Pennsylvania |
| Trenton and Morrisville |
| Weehawken and New York City |
New Jersey / New York |
| West New York and New York City |
| Woodbridge Township and New York City |
| Anthony and Anthony | Texas / New Mexico |
| Sunland Park and El Paso |
| Texico and Farwell |
| Waverly and South Waverly |
New York / Pennsylvania |
| Charlotte and Fort Mill |
 North Carolina / South Carolina |
| Bridgeport and Wheeling |
Ohio / West Virginia |
| Proctorville and Huntington |
| Pocola |
Oklahoma / Arkansas |
| Rock Island |
| Hood River and White Salmon |
Oregon / Washington |
| Jordan Valley |
Oregon / Idaho |
| Milton-Freewater and Walla Walla |
Oregon / Washington |
| Nyssa |
Oregon / Idaho |
| Portland and Vancouver |
Oregon / Washington |
| The Dalles and Dallesport |
| Umatilla |
| Point Marion and Morgantown |
Pennsylvania / West Virginia |
| Lemmon |
South Dakota / North Dakota |
| Yankton |
South Dakota / Nebraska |
| Bristol and Bristol | Tennessee / Virginia |
| Canutillo | Texas / New Mexico |
| El Paso |
| Orange | Texas / Louisiana |
| Cornish | Utah / Montana |
| Cove | Utah / Idaho |
| Lewiston |
| Manila | Utah / Wyoming |
| Portage | Utah / Idaho |
| St. George | Utah / Arizona |
| Bluefield and Bluefield | West Virginia / Virginia |
| Weirton and Stuebenville | West Virginia / Ohio |
| Asotin | Washington / Idaho |
| Beloit and South Beloits | Wisconsin / Illinois |
| Pine Bluffs | Wyoming / Nebraska |
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