Martin County, Texas
Located in Texas, Martin County has a population of 5,218 residents and a median age of 37.3 years, making it the #2,878 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 8.3%. The median home value is $174,800, and the median household income is $93,734, which is 25% above the national median.
Demographics
Martin County has a population of 5,218, making it the #2,878 most populous county in the US. The median age is 37.3 years, which is 4.1% 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 Martin County is $93,734, ranking #239 out of 3,222 counties — 24.7% above the national median. The poverty rate is 8.3% and unemployment stands at 5.4%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Martin County is $174,800 (-38.0% vs national). Renters pay a median of $971/mo and the homeownership rate is 78.1%.
Median Home Value Trend
Rankings →Household Type
Education
In Martin County, 20.9% of adults age 25+ hold a bachelor's degree or higher, which is 37.9% below the national average, ranking #1,830 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Martin County is 71.5 years. 24.3% of adults report poor or fair health and 21.1% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
17.2% of adults in Martin County smoke , 39.0% are obese , and 20.5% report excessive drinking.
Adult Smoking Trend
Safety
. Motor vehicle deaths occur at a rate of 25.6 per 100,000.
Families & Children
15.9% of children in Martin County live in poverty . The teen birth rate is 28.3 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Martin County is 59.1%. The mean commute time is 23.3 min, which is 15.7% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Martin County voted Republican with a margin of 75.7%. The vote was 11.9% Dem / 87.6% Rep. Compared to 2020, the margin shifted 3.0 toward Republicans .
Vote Share Over Time
About Martin County, Texas
Martin County, Texas has a total population of 5,218, making it the 2,878th most populous county in the United States. The median age in Martin County is 37.3 years, which is 4.1% below the national median of 38.9 years.
The median household income in Martin County is $93,734, which ranks #239 of 3,222 counties nationwide. This is 24.7% above the national median of $75,149. The poverty rate is 8.3%, lower than the national rate of 12.6%. The unemployment rate stands at 5.4%.
The median home value in Martin County is $174,800, 38.0% below the national median. Renters in Martin County pay a median gross rent of $971 per month. The homeownership rate is 78.1%, compared to the national rate of 64.4%.
In Martin County, 20.9% of residents aged 25 and older hold a bachelor's degree or higher, 37.9% below the national average of 33.7%. Health insurance coverage stands at 82.9% of the population. The average commute time for workers is 23.3 min.
Martin County is a diverse community. The largest racial or ethnic group is Hispanic or Latino at 47.7% of the population, followed by White (non-Hispanic) (45.1%) and Black (non-Hispanic) (2.8%).
All data for Martin 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.