Timber Lake city, South Dakota Demographics & Population 2026

Population Overview

Timber Lake city is a small community located in South Dakota, within Dewey County. The total population is 677. It ranks as the 118th most populous out of 439 cities and towns in South Dakota.

Age Demographics

The median age in Timber Lake city is 27.4 years. This is 27% lower than the state median of 37.7 years. With 35.4% of the population under 18, Timber Lake city has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Timber Lake city is $58,000. This is 20% lower than the state median of $72,421. Compared to the national median of $78,538, household income here is 26% lower. The poverty rate stands at 18.1%. This is 50% higher than the state poverty rate of 12.0%. The unemployment rate is 6.4%. This is 113% higher than the state rate of 3.0%. The median home value is $83,600. Housing costs are 65% lower than the state median of $236,800. With a home-value-to-income ratio of just 1.4x, Timber Lake city is one of the most affordable housing markets in the area. 60.6% of occupied housing units are owner-occupied. This homeownership rate is 12% lower than the state average of 68.6%.

Race & Ethnicity

The largest racial or ethnic group in Timber Lake city is White (non-Hispanic), making up 46.5% of the population. Hispanic or Latino residents account for 1.8%. The Black or African American population (0.9%) is well below the state average of 2.2%. The Hispanic or Latino population (1.8%) is well below the state average of 4.6%. The Asian population (0.4%) is well below the state average of 1.4%.

Education

23.9% of residents aged 25 and older hold a bachelor's degree or higher. This is 23% lower than the state rate of 31.1%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 93.2%.

Data Sources & Methodology

All demographic data for Timber Lake city, South Dakota is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. Comparisons are made against South Dakota state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 439 Census-designated places in South Dakota. For official data, visit data.census.gov.