According to theUnited States Census Bureau, the county has a total area of 1,157 square miles (3,000 km2), of which 17 square miles (44 km2) (1.5%) are covered by water.[5]
McMullen County, Texas – Racial and ethnic composition Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos may be of any race.
As of the2020 census, the county had a population of 600. The median age was 49.2 years. 18.8% of residents were under the age of 18 and 26.8% of residents were 65 years of age or older. For every 100 females there were 100.7 males, and for every 100 females age 18 and over there were 110.8 males age 18 and over.[12][13]
<0.1% of residents lived in urban areas, while 100.0% lived in rural areas.[14]
There were 256 households in the county, of which 37.1% had children under the age of 18 living in them. Of all households, 56.3% were married-couple households, 18.8% were households with a male householder and no spouse or partner present, and 21.1% were households with a female householder and no spouse or partner present. About 23.4% of all households were made up of individuals and 12.5% had someone living alone who was 65 years of age or older.[12]
There were 405 housing units, of which 36.8% were vacant. Among occupied housing units, 71.1% were owner-occupied and 28.9% were renter-occupied. The homeowner vacancy rate was <0.1% and the rental vacancy rate was 2.6%.[12]
As of the2000 census, 851 people, 355 households, and 238 families resided in the county. Thepopulation density was less than 1/km2 (2.6/mi2). The 587 housing units had an average density of 0 units per square mile (0/km2). Theracial makeup of the county was 88.37% White, 1.18% African American, 0.24% Native American, 8.93% from other races, and 1.29% from two or more races. About 33.14% of the population were Hispanics or Latinos of any race.[15]
Of the 355 households, 25.9% had children under 18 living with them, 59.7% were married couples living together, 5.6% had a female householder with no husband present, and 32.7% were not families. About 30.7% of all households were made up of individuals, and 14.9% had someone living alone who was 65 or older. The average household size was 2.40 and the average family size was 3.01.
In the county, the age distribution was 23.4% under 18, 6.3% from 18 to 24, 23.7% from 25 to 44, 28.7% from 45 to 64, and 17.9% who were 65 or older. The median age was 43 years. For every 100 females, there were 101.2 males. For every 100 females 18 and over, there were 105.7 males.
The median income for a household in the county was $32,500 and for a family was $35,417. Males had a median income of $26,953 versus $20,982 for females. Theper capita income for the county was $22,258. About 20.7% of the population and 15.9% of families were below the poverty line. Of the total people living in poverty, 28.6% were under 18 and 17.9% were 65 or older.
McMullen County is heavily Republican, having only voted for a Democratic candidate once since 1952, when in 1964, Texas nativeLyndon B. Johnson won in a national landslide against RepublicanBarry Goldwater. In 2016,Donald Trump won 91.0% of the vote in McMullen County, the most lopsided result in the county sinceFranklin D. Roosevelt's victory in 1932. Trump again broke this record in 2024, when he won nearly 92% of the vote in the county.
United States presidential election results for McMullen County, Texas[17]
