Roslyn, South Dakota Demographics & Population 2026
During the 2020–2024 ACS period, Roslyn, South Dakota had a total population of 147, the 264th largest town in South Dakota, with a median household income of $49,375, which is 34% lower than the state average. The poverty rate is 15.0%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 34% below the state average, indicating significant economic challenges.
- Housing is very affordable with a home-value-to-income ratio of just 2.0x.
Roslyn Quick Facts
How Roslyn Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 174 | 147 | -15.5% |
| Median household income | $44,375 | $49,375 | +11.3% |
| Median home value | $77,100 | $96,300 | +24.9% |
How Roslyn Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
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: 35 | National average: 61
Education
Educational Attainment (Adults 25+)
Roslyn Rankings in South Dakota
Explore South Dakota Rankings
Other Cities in Day County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Webster | 1,896 | $55,179 | 15.1% | $154,100 |
| Waubay | 337 | $36,389 | 24.3% | $152,800 |
| Enemy Swim | 301 | $30,357 | 69.4% | $85,800 |
| Bristol | 275 | $56,250 | 8.3% | $76,400 |
| Pierpont | 161 | $92,500 | 13.8% | $75,000 |
| Grenville | 53 | $90,385 | 5.7% | $41,400 |
| Andover | 31 | $68,333 | 9.7% | $57,500 |
| Butler | 2 | N/A | 0.0% | N/A |
Cities Similar to Roslyn
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Tschetter Colony | 148 | N/A | N/A | 81.1% | 84.1% |
| Norris | 140 | N/A | N/A | 22.6% | 81.2% |
| Clark Colony | 139 | N/A | N/A | 0.0% | 40.3% |
| Central City | 140 | $47,000 | $208,300 | 10.4% | 3.6% |
| Horse Creek | 162 | N/A | N/A | 0.0% | 96.9% |
A note before these figures: with a population of 147, Roslyn'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
Roslyn is a small community located in South Dakota, within Day County. The total population is 147. It ranks as the 264th most populous out of 439 Census-designated places in South Dakota.
Age Demographics
The median age in Roslyn is 53.1 years. This is 40% higher than the state median of 38.0 years. 21.8% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.
Economy, Income & Housing
The median household income in Roslyn is $49,375. This is 34% lower than the state median of $75,081. It is also 39% lower than the national median of $80,734. The poverty rate stands at 15.0%. This is 26% higher than the state poverty rate of 11.9%. The survey records no unemployed residents in Roslyn, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $96,300. Housing costs are 63% lower than the state median of $257,400. With a home-value-to-income ratio of just 2.0x, Roslyn is one of the most affordable housing markets in the area. 68.4% of occupied housing units are owner-occupied.
Race & Ethnicity
The largest racial or ethnic group in Roslyn is White (non-Hispanic), making up 81.6% of the population.
Education
15.2% of residents aged 25 and older hold a bachelor's degree or higher. This is 52% 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 80.4%.
Data Sources & Methodology
All demographic data for Roslyn, 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.
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Frequently Asked Questions
What is the population of Roslyn, South Dakota?
Roslyn, South Dakota has a population of 147 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Roslyn, SD?
The median household income in Roslyn is $49,375, which is 39% lower than the national median of $80,734.
What is the poverty rate in Roslyn, SD?
The poverty rate in Roslyn is 15.0%. This means approximately 18 residents live below the federal poverty line.
What is the racial makeup of Roslyn, South Dakota?
Roslyn's population is 81.6% White, 0.0% Black, 0.0% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Roslyn, SD?
The median home value in Roslyn is $96,300. The home-value-to-income ratio is 2.0x.
How educated is Roslyn, South Dakota?
15.2% of adults (25+) in Roslyn hold a bachelor's degree or higher, and 3.6% hold a graduate or professional degree.