Median Age in Custer County, SD
ACS 2024 5-Year Estimates
57.6 years
Rank #27/3,222 · #1 in SD
99th
Custer 57.6 years
SD 38.0 years +51.6%
US 38.9 years +48.1%
Median Age Trend
Rankings →Percentile Rank Over Time
Year-over-Year Age Change
National Distribution
How Custer County's median age of 57.6 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 Custer County for median age.
Nearby Rankings
Full ranking →| #24 | Roscommon County, MI | 57.7 years |
| #25 | Curry County, OR | 57.7 years |
| #26 | Sierra County, NM | 57.6 years |
| #27 | Custer County, SD | 57.6 years |
| #28 | Blaine County, NE | 57.5 years |
| #29 | Sarasota County, FL | 57.4 years |
| #30 | Towns County, GA | 57.4 years |
About Median Age
Custer County, South Dakota has a median age of 57.6 years, ranking #27 of 3,222 counties nationwide — 48.1% above the national value of 38.9 years. Within South Dakota, it ranks #1 of 66. This places it in the 99th 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.