Median Age in Lake County, SD
ACS 2024 5-Year Estimates
43.8 years
Rank #989/3,222 · #21 in SD
69th
Lake 43.8 years
SD 38.0 years +15.3%
US 38.9 years +12.6%
Median Age Trend
Rankings →Percentile Rank Over Time
Year-over-Year Age Change
National Distribution
How Lake County's median age of 43.8 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 Lake County for median age.
Nearby Rankings
Full ranking →| #986 | Pushmataha County, OK | 43.8 years |
| #987 | Perry County, PA | 43.8 years |
| #988 | Kent County, RI | 43.8 years |
| #989 | Lake County, SD | 43.8 years |
| #990 | Marion County, TN | 43.8 years |
| #991 | Henderson County, TX | 43.8 years |
| #992 | Lampasas County, TX | 43.8 years |
About Median Age
Lake County, South Dakota has a median age of 43.8 years, ranking #989 of 3,222 counties nationwide — 12.6% above the national value of 38.9 years. Within South Dakota, it ranks #21 of 66. This places it in the 69th 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.