Minneapolis and Saint Paul, Minnesota Natchez, Mississippi and Vidalia, Louisiana Crystal City, Missouri and Festus, Missouri Raleigh and Durham, North Carolina Winston-Salem and Greensboro, North Carolina (Winston-Salem itself was formerly a pair of twin cities, until the two merged) Fargo, North Dakota, and Moorhead, Minnesota Grand Forks, North Dakota and East Grand Forks, Minnesota Portland, Oregon and Vancouver, Washington Scranton and Wilkes-Barre, Pennsylvania Allentown and Bethlehem, Pennsylvania Greenville and Spartanburg, South Carolina Bristol, Tennessee and Bristol, Virginia Dallas and Fort Worth, Texas Midland and Odessa, Texas Bluefield, Virginia and Bluefield, West Virginia Memphis, Tennessee and West Memphis, Arkansas Fort Collins and Loveland, Colorado International Examples, sharing names or similar names, across an international border include: Canada–United States border Niagara Falls, Ontario, Canada; Niagara Falls, New York, United States Sault Ste. Marie, Ontario, Canada; Sault Ste. Marie, Michigan, United States North Portal, Saskatchewan, Canada; Portal, North Dakota, United States Mexico–United States border Tecate, Baja California, Mexico; Tecate, California, United States Boquillas del Carmen, Coahuila, Mexico; Boquillas, Texas, United States Naco, Sonora, Mexico; Naco, Arizona, United States Nogales, Sonora, Mexico; Nogales, Arizona, United States San Luis Río Colorado, Sonora, Mexico; San Luis, Arizona, United States Nuevo Laredo, Tamaulipas, Mexico; Laredo, Texas, United States Nuevo Progreso, Río Bravo, Tamaulipas, Mexico; Progreso, Texas, United States Calexico, California, United States; Mexicali, Baja California, Mexico; see Calexico–Mexicali Pairs with unrelated names: Mexico–Guatemala border Ciudad Hidalgo, Chiapas, Mexico and Ayutla, San Marcos, Guatemala United States–Canada border Detroit, Michigan, United States and Windsor, Ontario, Canada; see Detroit–Windsor International Falls, Minnesota, United States and Fort Frances, Ontario, Canada United States–Mexico border Douglas, Arizona, United States and Agua Prieta, Sonora, Mexico Yuma, Arizona, United States and San Luis Río Colorado, Sonora, Mexico San Diego, California, United States and Tijuana, Baja California, Mexico; see San Diego–Tijuana Brownsville, Texas, United States and Matamoros, Tamaulipas, Mexico; see Brownsville–Matamoros Del Rio, Texas, United States and Ciudad Acuña, Coahuila, Mexico Eagle Pass, Texas, United States and Piedras Negras, Coahuila, Mexico El Paso, Texas, United States and Ciudad Juárez, Chihuahua, Mexico; see El Paso–Juárez Presidio, Texas, United States and Manuel Ojinaga, Chihuahua, Mexico Historic Lloydminster, Alberta/Saskatchewan, Canada Thunder Bay, Ontario, Canada Saginaw and East Saginaw, Michigan, United States Brooklyn and New York City, New York, United States South America Argentina Carmen de Patagones and Viedma Paraná, Entre Ríos and Santa Fe Brazil Americana, São Paulo and Santa Bárbara d'Oeste Juazeiro and Petrolina Olinda and Recife Vila