How Lake County Compares

Lake County

43.8 years

South Dakota Average

43.8 years

Rank #21 of 66 in state

National

38.9 years

12.6% above

National Distribution

Where Lake County falls among all 3,222 U.S. counties for median age.

21.4 years 86.2 years

■ Lake County: 43.8 years

Ranking Context

Rank	County	Value
#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

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Median Age in Lake County, South Dakota

Lake County, South Dakota has a median age of 43.8 years, which ranks #989 of 3,222 out of 3,222 counties nationwide. This is 12.6% above the national value of 38.9 years.

Within South Dakota, Lake County ranks #21 of 66 out of 66 counties. This places it in the 69th percentile nationally.

The median age of the total population. All data comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates for 2024.

About this data

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates (2024). All values are estimates derived from survey samples and are subject to margin of error. For more information, see our methodology.