McLennan County, Texas
Located in Texas, McLennan County has a population of 266,067 residents and a median age of 34.0 years, making it the #272 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 16.6%. The median home value is $243,600, and the median household income is $66,643, which is 11% below the national median.
Demographics
McLennan County has a population of 266,067, making it the #272 most populous county in the US. The median age is 34.0 years, which is 12.6% 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 McLennan County is $66,643, ranking #1,457 out of 3,222 counties — 11.3% below the national median. The poverty rate is 16.6% and unemployment stands at 4.4%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in McLennan County is $243,600 (-13.6% vs national). Renters pay a median of $1,173/mo and the homeownership rate is 61.8%.
Median Home Value Trend
Rankings →Household Type
Education
In McLennan County, 28.7% of adults age 25+ hold a bachelor's degree or higher, which is 14.9% below the national average, ranking #862 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in McLennan County is 75.3 years. 22.8% of adults report poor or fair health and 18.5% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
18.4% of adults in McLennan County smoke , 39.0% are obese , and 19.0% report excessive drinking. The drug overdose death rate is 11.9 per 100,000.
Adult Smoking Trend
Safety
The homicide rate in McLennan County is 5.9 per 100,000 and the suicide rate is 15.5 per 100,000. Motor vehicle deaths occur at a rate of 14.4 per 100,000.
Homicide Rate Trend
Families & Children
20.2% of children in McLennan County live in poverty and the infant mortality rate is 6.3 per 1,000 live births. The teen birth rate is 22.4 per 1,000 females age 15–19.
Infant Mortality Trend
Civic & Transportation
Voter turnout in McLennan County is 55.2%. The mean commute time is 23.0 min, which is 16.7% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, McLennan County voted Republican with a margin of 30.9%. The vote was 34% Dem / 64.9% Rep. Compared to 2020, the margin shifted 7.5 toward Republicans .
Vote Share Over Time
About McLennan County, Texas
McLennan County, Texas has a total population of 266,067, making it the 272nd most populous county in the United States. The median age in McLennan County is 34.0 years, which is 12.6% below the national median of 38.9 years.
The median household income in McLennan County is $66,643, which ranks #1,457 of 3,222 counties nationwide. This is 11.3% below the national median of $75,149. The poverty rate is 16.6%, higher than the national rate of 12.6%. The unemployment rate stands at 4.4%.
The median home value in McLennan County is $243,600, 13.6% below the national median. Renters in McLennan County pay a median gross rent of $1,173 per month. The homeownership rate is 61.8%, compared to the national rate of 64.4%.
In McLennan County, 28.7% of residents aged 25 and older hold a bachelor's degree or higher, 14.9% below the national average of 33.7%. Health insurance coverage stands at 85.8% of the population. The average commute time for workers is 23.0 min.
McLennan County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 54.1% of the population, followed by Hispanic or Latino (27.0%) and Black (non-Hispanic) (13.5%).
All data for McLennan 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.