| Starr County Texas Cities/Towns - Escobares, Garciasville, La Grulla, Rio Grande City (County Seat), Roma-Los Saenz, Santa Elena |
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![]() Your Ad Here Starr County is a county located in the U.S. state of Texas. In 2000, its population was 53,597. Its county seat is Rio Grande City. History The county is named for James Harper Starr, who served as Secretary of the Treasury of the Republic of Texas. |