Long Lake, South Dakota Demographics & Population 2026

A note before these figures: with a population of 14, Long Lake'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

Long Lake is a small community located in South Dakota, within McPherson County. The total population is 14. It ranks as the 418th most populous out of 439 Census-designated places in South Dakota.

Age Demographics

The median age in Long Lake is 68.3 years. This is 80% higher than the state median of 38.0 years. Only 14.3% of residents are under 18, indicating fewer families with children.

Economy, Income & Housing

The median household income in Long Lake is $61,042. This is 19% lower than the state median of $75,081. It is also 24% lower than the national median of $80,734. The poverty rate stands at 7.1%. This is 40% lower than the state poverty rate of 11.9%. The survey records no unemployed residents in Long Lake, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $43,300. Housing costs are 83% lower than the state median of $257,400. With a home-value-to-income ratio of just 0.7x, Long Lake is one of the most affordable housing markets in the area. 88.9% of occupied housing units are owner-occupied. This homeownership rate is 30% higher than the state average of 68.6%.

Race & Ethnicity

Every resident counted in Long Lake was recorded as White (non-Hispanic). A figure of exactly 100.0% reflects a survey sample too small to capture the community's full composition rather than a precise measurement.

Education

0.0% of residents aged 25 and older hold a bachelor's degree or higher. This is among the lowest rates in the state, which may correlate with employment and income patterns. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 91.7%.

Data Sources & Methodology

All demographic data for Long Lake, 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.