| Border towns | Bordering countries |
| Benque Viejo del Carmen |  Belize / Guatemala |
| Chetumal |  Mexico / Belize |
| Ciudad Hidalgo, Chiapas /Ciudad Tecun Uman | Mexico / Guatemala |
| Corozal Town | Belize / Mexico |
| Melchor de Mencos | Belize / Guatemala |
| Hyder, Alaska / Stewart, British Columbia |  United States / Canada |
| Juneau, Alaska |
| Point Roberts, Washington / Tsawwassen, British Columbia |
| Blaine, Washington / Surrey, British Columbia |
| Sumas, Washington / Abbotsford, British Columbia |
| Laurier, Washington / Cascade City |
| Sweetgrass, Montana / Coutts, Alberta |
| Portal, North Dakota / North Portal, Saskatchewan |
| Gretna, Manitoba |
| Pembina, North Dakota / Emerson, Manitoba |
| Noyes, Minnesota / Emerson, Manitoba |
| Baudette, Minnesota / Rainy River, Ontario |
| Emo, Ontario |
| International Falls, Minnesota, Ranier, Minnesota / Fort Frances, Ontario |
| Sault Ste. Marie, Michigan / Sault Ste. Marie, Ontario |
| Grosse Ile Township, Michigan / Amherstburg, Ontario |
| Wyotte, Michigan, Ecorse, Michigan / LaSalle, Ontario |
| Detroit, Michigan, River Rouge, Michigan / Windsor, Ontario |
| Algonac, Michigan |
| Port Lambton, Ontario |
| Marine City, Michigan / Sombra, Ontario |
| East China Township, Michigan |
| St. Clair, Michigan |
| Marysville, Michigan |
| Port Huron, Michigan / Sarnia, Ontario |
| Buffalo, New York / Fort Erie, Ontario |
| Niagara Falls, New York, Youngstown, New York / Niagara Falls, Ontario |
| Lewiston, New York / Queenston, Ontario |
| Cape Vincent, New York / Wolfe Island, Ontario |
| Morristown, New York / Brockville, Ontario |
| Ogdensburg, New York, Johnstown, Ontario / Prescott, Ontario |
| Massena, New York / Cornwall, Ontario |
| Waddington (village), New York |
| Morrisburg, Ontario |
| St. Regis, New York / Akwesasne, Quebec |
| Fort Covington, New York / Dundee, Quebec |
| Champlain, New York / Saint-Bernard-de-Lacolle, Quebec |
| Rouses Point, New York |
| Canaan, Vermont |
| Derby Line, Vermont / Rock Isl/, Quebec |
| Norton, Vermont / Stanhope, Quebec |
| Estcourt Station, Maine / Pohénégamook, Quebec |
| Fort Kent, Maine / Clair, New Brunswick |
| Frenchville, Maine |
| Madawaska, Maine / Edmundston, New Brunswick |
| Van Buren, Maine / St. Leonard, New Brunswick |
| Hamlin, Maine |
| Limestone, Maine |
| Fort Fairfield, Maine |
| Easton, Maine |
| Mars Hill, Maine |
| Blaine, Maine |
| Bridgewater, Maine |
| Monticello, Maine |
| Littleton, Maine |
| Houlton, Maine / Woodstock, New Brunswick |
| Hodgdon, Maine |
| Cary, Maine |
| Amity, Maine |
| Orient, Maine |
| Weston, Maine |
| Danforth, Maine |
| Baileyville, Maine |
| Vanceboro, Maine / St. Croix, New Brunswick |
| Baring Plantation, Maine |
| Calais, Maine / St. Stephen, New Brunswick |
| Robbinston, Maine |
| Perry, Maine |
| Eastport, Maine / Deer Island, New Brunswick |
| Lubec, Maine / Campobello Island, New Brunswick |
| San Diego, California / Tijuana, Baja California | United States / Mexico |
| Tecate, Baja California |
| Calexico, California / Mexicali, Baja California |
| Gadsden, Arizona |
| San Luis, Arizona / San Luis Río Colorado, Sonora/Los Algodones, Baja California |
| Yuma, Arizona / Los Algodones, Baja California |
| Sonoyta, Sonora |
| Naco, Arizona / Naco, Sonora |
| Nogales, Arizona / Nogales, Sonora |
| Douglas, Arizona / Agua Prieta, Sonora |
| Columbus, New Mexico / Puerto Palomas, Chihuahua |
| Sunland Park, New Mexico / Ciudad Juárez, Chihuahua |
| El Paso, Texas / Ciudad Juárez, Chihuahua |
| Socorro, Texas |
| San Elizario, Texas |
| Doctor Porfirio Parra |
| Tornillo, Texas |
| Presidio, Texas / Ojinaga, Chihuahua |
| Boquillas del Carmen |
| Del Rio, Texas / Ciudad Acuña, Coahuila |
| Eagle Pass, Texas / Piedras Negras, Coahuila |
| Rosita, Texas |
| Hidalgo, Coahuila |
| Colombia, Nuevo León |
| Laredo, Texas / Nuevo Laredo, Tamaulipas |
| El Cenizo, Texas |
| San Ygnacio, Texas |
| Falcon Mesa, Texas |
| Siesta Shores, Texas |
| Salineño, Texas |
| Roma, Texas / Ciudad Miguel Alemán, Tamaulipas |
| Escobares, Texas |
| La Rosita, Texas |
| Los Alvarez, Texas |
| Los Villareales, Texas |
| Rio Grande City, Texas |
| La Grulla, Texas |
| Los Ebanos, Texas / Gustavo Díaz Ordaz, Tamaulipas |
| Mission, Texas |
| McAllen, Texas |
| Hidalgo, Texas / Reynosa, Tamaulipas |
| Edinburg, Texas |
| Pharr, Texas / Reynosa, Tamaulipas |
| Progreso Lakes, Texas / Nuevo Progreso, Río Bravo, Tamaulipas |
| Río Rico, Tamaulipas |
| Bluetown-Iglesia Antigua, Texas |
| Encantada-Ranchito El Calaboz, Texas |
| Brownsville, Texas / Matamoros, Tamaulipas |
From Wikipedia the free encyclopedia
Egypt
Turkey
Kazakhstan 
Russia 
Turkish Republic of Northern Cyprus is a de facto state with almost no international recognition, with Turkey being the only UN member state to recognize its sovereignty.) 
Papua New Guinea / 
Indonesia 
New South Wales / 
Victoria 
South Australia / 
Australian Capital Territory 
Queensland