Some of the cities, towns, and places in Starr County are Airport Heights, Alto Bonito Heights, Amada Acres, Anacua, B and E, Barrera, Benjamin Perez, Buena Vista, Camargito, Campo Verde, Casa Blanca, Casas, Chaparrito, Chapeno, Delmita, East Alto Bonito, East Lopez, El Brazil, El Castillo, El Cenizo, El Chaparral, El Mesquite, El Quiote, El Rancho Vela, El Refugio, El Socio, Elias-Fela Solis, Escobar I, Escobares, Eugenio Saenz, Evergreen, Falcon Heights, Falcon Village, Falconaire, Fernando Salinas, Flor del Rio, Fronton, Fronton Ranchettes, Garceno, Garciasville, Garza-Salinas II, Guadalupe-Guerra, Gutierrez, H. Cuellar Estates, Hilltop, Indio, Jardin de San Julian, JF Villarreal, La Carla, La Casita, La Chuparosa, La Escondida, La Esperanza, La Gloria, La Grulla, La Loma de Falcon, La Minita, La Paloma Ranchettes, La Puerta, La Reforma, La Rosita, La Victoria, Lago Vista, Las Lomas, Loma Linda East, Loma Linda West, Loma Vista, Longoria, Los Alvarez, Los Arrieros, Los Barreras, Los Ebanos, Manuel Garcia, Manuel Garcia II, Martinez, Mesquite, Mi Ranchito Estate, Miguel Barrera, Mikes, Moraida, Narciso Pena, Netos, Nina, North Escobares, Northridge, Old Escobares, Olivia Lopez de Gutierrez, Olmito and Olmito, Pablo Pena, Palo Blanco, Pena, Quesada, Rafael Pena, Ramirez-Perez, Ramos, Ranchitos del Norte, Rancho Viejo, Regino Ramirez, Rio Grande City, Rivera, Rivereno, Roma, Roma Creek, Salineño, Salineño North, Sammy Martinez, San Fernando, San Isidro, San Juan, Sandoval, Santa Anna, Santa Catarina, Santa Cruz, Santa Elena, Santa Rosa, Santel, Sunset, Tierra Dorada, Valle Hermoso, Valle Vista, Victoria Vera, Villarreal, West Alto Bonito, Zarate
Starr County is located in the U.S. state of Texas. As of the 2020 census, its population was 65,920. Its county seat is Rio Grande City. The county was created in 1848. It is named for James Harper Starr, who served as Secretary of the Treasury of the Republic of Texas.
Starr County comprises the Rio Grande City, TX Micropolitan Statistical Area, which also includes other small cities, which itself is part of the larger Rio Grande Valley region. It is directly northeast of the Mexican border.
The county is almost universally Hispanic. With 97.7% of its population identifying as such, it is the county with the highest proportion of Hispanics in the continental United States.