Collin County, Texas
Located in Texas, Collin County has a population of 1,163,337 residents and a median age of 37.3 years, making it the #40 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 6.2%. The median home value is $475,600, and the median household income is $121,600, which is 62% above the national median.
Demographics
Collin County has a population of 1,163,337, making it the #40 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 Collin County is $121,600, ranking #51 out of 3,222 counties — 61.8% above the national median. The poverty rate is 6.2% and unemployment stands at 4.2%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Collin County is $475,600 (+68.7% vs national). Renters pay a median of $1,859/mo and the homeownership rate is 64.5%.
Median Home Value Trend
Rankings →Household Type
Education
In Collin County, 56.2% of adults age 25+ hold a bachelor's degree or higher, which is 66.8% above the national average, ranking #48 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Collin County is 81.3 years. 12.4% of adults report poor or fair health and 10.6% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
8.8% of adults in Collin County smoke , 28.6% are obese , and 18.2% report excessive drinking. The drug overdose death rate is 10.1 per 100,000.
Adult Smoking Trend
Safety
The homicide rate in Collin County is 2.3 per 100,000 and the suicide rate is 11.3 per 100,000. Motor vehicle deaths occur at a rate of 6.9 per 100,000.
Homicide Rate Trend
Families & Children
6.6% of children in Collin County live in poverty and the infant mortality rate is 4.3 per 1,000 live births. The teen birth rate is 6.9 per 1,000 females age 15–19.
Infant Mortality Trend
Civic & Transportation
Voter turnout in Collin County is 76.1%. The mean commute time is 31.0 min, which is 12.1% above the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Collin County voted Republican with a margin of 11.2%. The vote was 43.1% Dem / 54.3% Rep. Compared to 2020, the margin shifted 6.8 toward Republicans .
Vote Share Over Time
About Collin County, Texas
Collin County, Texas has a total population of 1,163,337, making it the 40th most populous county in the United States. The median age in Collin County is 37.3 years, which is 4.1% below the national median of 38.9 years.
The median household income in Collin County is $121,600, which ranks #51 of 3,222 counties nationwide. This is 61.8% above the national median of $75,149. The poverty rate is 6.2%, lower than the national rate of 12.6%. The unemployment rate stands at 4.2%.
The median home value in Collin County is $475,600, 68.7% above the national median. Renters in Collin County pay a median gross rent of $1,859 per month. The homeownership rate is 64.5%, compared to the national rate of 64.4%.
In Collin County, 56.2% of residents aged 25 and older hold a bachelor's degree or higher, 66.8% above the national average of 33.7%. Health insurance coverage stands at 90.5% of the population. The average commute time for workers is 31.0 min.
Collin County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 49.6% of the population, followed by Asian (non-Hispanic) (18.7%) and Hispanic or Latino (16.1%).
All data for Collin 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.