Unified School District · SD
Timber Lake School District 20-3
Timber Lake School District 20-3 is a unified school district in South Dakota with a community population of 1,694. The median household income is $63,839 and the median age is 31.7.
1,694
Population
1
People / sq mi
$63,839
Median Income
31.7
Median Age
Timber Lake School District 20-3 covers 1,208 sq mi of land at 1.4 people per square mile.
Race & Ethnicity
| White | 48.6% |
| Black or African American | 0.0% |
| Asian | 29.3% |
| Hispanic or Latino (any race) | 0.0% |
Economy & Income
$63,839
Median Household Income
$28,940
Per Capita Income
15.3%
Poverty Rate
5.9%
Unemployment
Housing
$73,500
Median Home Value
$645
Median Rent
66.5%
Homeownership
Education Attainment
92.3%
High School+
19.4%
Bachelor's+
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State rankings
Frequently Asked Questions
Timber Lake School District 20-3 serves a community with a population of 1,694 according to the latest Census ACS 5-Year estimates. This unified school district is located in South Dakota.
The median household income in Timber Lake School District 20-3 is $63,839, with a per capita income of $28,940. The poverty rate is 15.3%.
Timber Lake School District 20-3 is 48.6% White, 0.0% Black or African American, 29.3% Asian, and 0.0% Hispanic or Latino, per Census ACS data.
In Timber Lake School District 20-3, 92.3% of adults have a high school diploma or higher, and 19.4% hold a bachelor's degree or higher, per Census ACS estimates.
The median home value in Timber Lake School District 20-3 is $73,500, with a median rent of $645. The homeownership rate is 66.5%.
More from South Dakota
Data for Timber Lake School District 20-3 from the American Community Survey 5-Year estimates. Land area from Census Gazetteer files. This is a unified school district (GEOID: 4671880).
this entity is one of the data points covered by this site’s U.S. population demographics dataset. The detail above comes directly from the U.S. Census Bureau ACS and decennial files; the context that follows situates the headline numbers against the broader distribution across U.S. states, metros, cities, and ZIPs.
Every number on this page links back to the U.S. Census Bureau ACS and decennial files; the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.
For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for this entity is typically a peer within U.S. states, metros, cities, and ZIPs with similar size, similar exposure, or similar geography — not the national-level summary alone.
Source: U.S. Census Bureau ACS, 2026.