Starr County, Texas
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 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 population is almost entirely Hispanic or Latino, with 97.6% of its population identifying as such. It is the county with the highest proportion of Hispanics in the continental United States. It had continuously voted Democratic for president between 1896 and 2020, but flipped Republican in 2024.