Median Age in Collin County, TX
ACS 2024 5-Year Estimates
37.3 years
Rank #2,709/3,222 · #156 in TX
16th
Collin 37.3 years
TX 35.6 years +4.8%
US 38.9 years -4.1%
Median Age Trend
Rankings →Percentile Rank Over Time
Year-over-Year Age Change
National Distribution
How Collin County's median age of 37.3 years compares to all 3,222 U.S. counties. Values range from 21.4 years to 86.2 years.
Distribution of Median Age Across All Counties
Ranking Context
Counties ranked closest to Collin County for median age.
Nearby Rankings
Full ranking →| #2,706 | Cherokee County, OK | 37.3 years |
| #2,707 | Meade County, SD | 37.3 years |
| #2,708 | Weakley County, TN | 37.3 years |
| #2,709 | Collin County, TX | 37.3 years |
| #2,710 | Fort Bend County, TX | 37.3 years |
| #2,711 | Lynn County, TX | 37.3 years |
| #2,712 | Martin County, TX | 37.3 years |
About Median Age
Collin County, Texas has a median age of 37.3 years, ranking #2,709 of 3,222 counties nationwide — 4.1% below the national value of 38.9 years. Within Texas, it ranks #156 of 254. This places it in the 16th percentile nationally.
The median age of the total population. Source: U.S. Census Bureau, American Community Survey 2024 5-Year Estimates. All values are estimates derived from survey samples and are subject to margin of error. For more information, see our methodology.