Erwin town, South Dakota Demographics & Population 2026
As of 2026, Erwin town, South Dakota has a total population of 50, the 372nd largest city in South Dakota, with a median household income of $53,750, which is 26% lower than the state average. The poverty rate is 6.0%.
Key Takeaways
- Housing is very affordable with a home-value-to-income ratio of just 0.8x.
- Near full employment with an unemployment rate of just 0.0%.
Erwin town Quick Facts
How Erwin town Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 33 | National average: 60
Education
Educational Attainment (Adults 25+)
Erwin town Rankings in South Dakota
Explore South Dakota Rankings
Other Cities in Kingsbury County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| De Smet city | 974 | $60,139 | 5.4% | $155,900 |
| Arlington city | 833 | $67,083 | 16.7% | $122,400 |
| Lake Preston city | 539 | $60,917 | 13.7% | $139,100 |
| Iroquois city | 425 | $60,750 | 1.7% | $138,500 |
| Badger town | 164 | $68,571 | 4.9% | $72,000 |
| Oldham city | 98 | $29,643 | 19.4% | $62,000 |
| Bancroft town | 34 | $133,750 | 0.0% | N/A |
| Hetland town | 10 | $45,625 | 0.0% | $65,000 |
Cities Similar to Erwin town
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Interior town | 53 | N/A | $114,300 | 18.4% | 35.9% |
| Millbrook Colony CDP | 54 | N/A | N/A | 0.0% | 68.5% |
| Raymond town | 51 | $47,500 | N/A | 16.2% | 13.7% |
| St. Onge CDP | 46 | N/A | N/A | 100.0% | 0.0% |
| Old Elm Spring Colony CDP | 45 | N/A | N/A | N/A | N/A |
Population Overview
Erwin town is a small community located in South Dakota, within Kingsbury County. The total population is 50. It ranks as the 372nd most populous out of 439 cities and towns in South Dakota.
Age Demographics
The median age in Erwin town is 55.5 years. This is 47% higher than the state median of 37.7 years.
Economy, Income & Housing
The median household income in Erwin town is $53,750. This is 26% lower than the state median of $72,421. Compared to the national median of $78,538, household income here is 32% lower. The poverty rate stands at 6.0%. This is 50% lower than the state poverty rate of 12.0%. The unemployment rate is 0.0%. This is 100% lower than the state rate of 3.0%. The median home value is $45,000. Housing costs are 81% lower than the state median of $236,800. With a home-value-to-income ratio of just 0.8x, Erwin town is one of the most affordable housing markets in the area. 100.0% of occupied housing units are owner-occupied. This homeownership rate is 46% higher than the state average of 68.6%.
Race & Ethnicity
Erwin town has a predominantly White (non-Hispanic) population, comprising 100.0% of all residents.
Education
21.9% of residents aged 25 and older hold a bachelor's degree or higher. This is 29% 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 100.0%.
Data Sources & Methodology
All demographic data for Erwin town, 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.
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Frequently Asked Questions
What is the population of Erwin town, South Dakota?
Erwin town, South Dakota has a population of 50 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Erwin town, SD?
The median household income in Erwin town is $53,750, which is 32% lower the national median of $78,538.
What is the poverty rate in Erwin town, SD?
The poverty rate in Erwin town is 6.0%. This means approximately 3 residents live below the federal poverty line.
What is the racial makeup of Erwin town, South Dakota?
Erwin town's population is 100.0% White, 0.0% Black, 0.0% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Erwin town, SD?
The median home value in Erwin town is $45,000. The home-value-to-income ratio is 0.8x.
How educated is Erwin town, South Dakota?
21.9% of adults (25+) in Erwin town hold a bachelor's degree or higher, and 7.3% hold a graduate or professional degree.