Median Age in Summit County, CO
ACS 2024 5-Year Estimates
39.5 years
Rank #2,251/3,222 · #47 in CO
30th
Summit 39.5 years
CO 37.7 years +4.8%
US 38.9 years +1.5%
Median Age Trend
Rankings →Percentile Rank Over Time
Year-over-Year Age Change
National Distribution
How Summit County's median age of 39.5 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 Summit County for median age.
Nearby Rankings
Full ranking →| #2,248 | Elmore County, AL | 39.5 years |
| #2,249 | Navajo County, AZ | 39.5 years |
| #2,250 | Kit Carson County, CO | 39.5 years |
| #2,251 | Summit County, CO | 39.5 years |
| #2,252 | Polk County, FL | 39.5 years |
| #2,253 | Spalding County, GA | 39.5 years |
| #2,254 | Kalawao County, HI | 39.5 years |
About Median Age
Summit County, Colorado has a median age of 39.5 years, ranking #2,251 of 3,222 counties nationwide — 1.5% above the national value of 38.9 years. Within Colorado, it ranks #47 of 64. This places it in the 30th 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.