Rockwall County, Texas
Located in Texas, Rockwall County has a population of 123,617 residents and a median age of 37.5 years, making it the #528 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 4.0%. The median home value is $415,500, and the median household income is $127,981, which is 70% above the national median.
Demographics
Rockwall County has a population of 123,617, making it the #528 most populous county in the US. The median age is 37.5 years, which is 3.6% 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 Rockwall County is $127,981, ranking #35 out of 3,222 counties — 70.3% above the national median. The poverty rate is 4.0% and unemployment stands at 4.3%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Rockwall County is $415,500 (+47.4% vs national). Renters pay a median of $1,992/mo and the homeownership rate is 82.5%.
Median Home Value Trend
Rankings →Household Type
Education
In Rockwall County, 44.5% of adults age 25+ hold a bachelor's degree or higher, which is 32.0% above the national average, ranking #178 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Rockwall County is 79.1 years. 15.1% of adults report poor or fair health and 11.2% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
11.9% of adults in Rockwall County smoke , 34.9% are obese , and 22.7% report excessive drinking. The drug overdose death rate is 15.2 per 100,000.
Adult Smoking Trend
Safety
The homicide rate in Rockwall County is 2.4 per 100,000 and the suicide rate is 13.6 per 100,000. Motor vehicle deaths occur at a rate of 8.3 per 100,000.
Homicide Rate Trend
Families & Children
6.5% of children in Rockwall County live in poverty and the infant mortality rate is 4.3 per 1,000 live births. The teen birth rate is 7.7 per 1,000 females age 15–19.
Infant Mortality Trend
Civic & Transportation
Voter turnout in Rockwall County is 76.8%. The mean commute time is 37.6 min, which is 36.2% above the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Rockwall County voted Republican with a margin of 40.8%. The vote was 29.1% Dem / 69.9% Rep. Compared to 2020, the margin shifted 3.2 toward Republicans .
Vote Share Over Time
About Rockwall County, Texas
Rockwall County, Texas has a total population of 123,617, making it the 528th most populous county in the United States. The median age in Rockwall County is 37.5 years, which is 3.6% below the national median of 38.9 years.
The median household income in Rockwall County is $127,981, which ranks #35 of 3,222 counties nationwide. This is 70.3% above the national median of $75,149. The poverty rate is 4.0%, lower than the national rate of 12.6%. The unemployment rate stands at 4.3%.
The median home value in Rockwall County is $415,500, 47.4% above the national median. Renters in Rockwall County pay a median gross rent of $1,992 per month. The homeownership rate is 82.5%, compared to the national rate of 64.4%.
In Rockwall County, 44.5% of residents aged 25 and older hold a bachelor's degree or higher, 32.0% above the national average of 33.7%. Health insurance coverage stands at 91.3% of the population. The average commute time for workers is 37.6 min.
Rockwall County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 63.0% of the population, followed by Hispanic or Latino (20.8%) and Black (non-Hispanic) (9.1%).
All data for Rockwall 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.