In 2018, McMullen County, TX had a population of 662 people with a median age of 40.2 and a median household income of $68,750. Between 2017 and 2018 the population of McMullen County, TX grew from 600 to 662, a 10.3% increase and its median household income declined from $71,389 to $68,750, a -3.7% decrease.
The 5 largest ethnic groups in McMullen County, TX are White (Non-Hispanic) (49.2%), White (Hispanic) (49.2%), Other (Hispanic) (0.906%), American Indian & Alaska Native (Non-Hispanic) (0.604%), and Black or African American (Non-Hispanic) (0%). 0% of the households in McMullen County, TX speak a non-English language at home as their primary language, and 97.9% of the residents in McMullen County, TX are U.S. citizens.
In 2018, the median property value in McMullen County, TX was $106,600, and the homeownership rate was 73.1%. Most people in McMullen County, TX drove alone to work, and the average commute time was 18.3 minutes. The average car ownership in McMullen County, TX was 2 cars per household.