McMullen County, Texas
Located in Texas, McMullen County has a population of 700 residents and a median age of 31.8 years, making it the #3,209 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 12.3%. The median home value is $97,100, and the median household income is $43,875, which is 42% below the national median.
Demographics
McMullen County has a population of 700, making it the #3,209 most populous county in the US. The median age is 31.8 years, which is 18.3% below the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Geographic Mobility (Past Year)
Economy
The median household income in McMullen County is $43,875, ranking #2,992 out of 3,222 counties — 41.6% below the national median. The poverty rate is 12.3% and unemployment stands at 0.0%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in McMullen County is $97,100 (-65.6% vs national). Renters pay a median of $758/mo and the homeownership rate is 78.3%.
Median Home Value Trend
Rankings →Household Type
Education
In McMullen County, 20.1% of adults age 25+ hold a bachelor's degree or higher, which is 40.5% below the national average, ranking #1,993 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
28.4% of adults report poor or fair health and 15.9% lack health insurance. Data from County Health Rankings (2025).
Poor/Fair Health Trend
Substance Use
20.0% of adults in McMullen County smoke , 42.7% are obese , and 18.3% report excessive drinking.
Adult Smoking Trend
Safety
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Families & Children
18.6% of children in McMullen County live in poverty .
Child Poverty Trend
Civic & Transportation
Voter turnout in McMullen County is 100.0%. The mean commute time is 21.6 min, which is 21.8% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, McMullen County voted Republican with a margin of 84.4%. The vote was 7.6% Dem / 92% Rep. Compared to 2020, the margin shifted 5.6 toward Republicans .
Vote Share Over Time
About McMullen County, Texas
McMullen County, Texas has a total population of 700, making it the 3,209th most populous county in the United States. The median age in McMullen County is 31.8 years, which is 18.3% below the national median of 38.9 years.
The median household income in McMullen County is $43,875, which ranks #2,992 of 3,222 counties nationwide. This is 41.6% below the national median of $75,149. The poverty rate is 12.3%, lower than the national rate of 12.6%.
The median home value in McMullen County is $97,100, 65.6% below the national median. Renters in McMullen County pay a median gross rent of $758 per month. The homeownership rate is 78.3%, compared to the national rate of 64.4%.
In McMullen County, 20.1% of residents aged 25 and older hold a bachelor's degree or higher, 40.5% below the national average of 33.7%. Health insurance coverage stands at 85.0% of the population. The average commute time for workers is 21.6 min.
McMullen County is a community. The largest racial or ethnic group is Hispanic or Latino at 62.1% of the population, followed by White (non-Hispanic) (37.3%).
All data for McMullen County, Texas comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.