Lake Andes, South Dakota Demographics & Population 2026

A note before these figures: with a population of 901, Lake Andes's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.

Population Overview

Lake Andes is a small community located in South Dakota, within Charles Mix County. The total population is 901. It ranks as the 92nd most populous out of 439 Census-designated places in South Dakota.

Age Demographics

The median age in Lake Andes is 30.0 years. This is 21% lower than the state median of 38.0 years. With 38.4% of the population under 18, Lake Andes has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Lake Andes is $47,500. This is 37% lower than the state median of $75,081. It is also 41% lower than the national median of $80,734. The poverty rate stands at 36.2%. This is 204% higher than the state poverty rate of 11.9%. With more than one in five residents living below the poverty line, economic hardship is a significant challenge for the community. The unemployment rate is 7.9%. This is 169% higher than the state rate of 2.9%. The median home value is $58,800. Housing costs are 77% lower than the state median of $257,400. With a home-value-to-income ratio of just 1.2x, Lake Andes is one of the most affordable housing markets in the area. 70.6% of occupied housing units are owner-occupied. This homeownership rate is 3% higher than the state average of 68.6%.

Race & Ethnicity

Lake Andes is a highly diverse community where no single racial or ethnic group constitutes a majority of the population. Hispanic or Latino residents account for 9.5%. The White (non-Hispanic) population (36.7%) is well below the state average of 79.8%. The Black or African American population (0.3%) is well below the state average of 2.1%. The Hispanic or Latino population is significantly higher than the state average (9.5% vs 4.8%). The Asian population (0.1%) is well below the state average of 1.4%.

Education

27.0% of residents aged 25 and older hold a bachelor's degree or higher. This is 15% lower than the state rate of 31.9%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 82.6%.

Data Sources & Methodology

All demographic data for Lake Andes, South Dakota is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. 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. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.