Marvin, South Dakota Demographics & Population 2026
During the 2020–2024 ACS period, Marvin, South Dakota had a total population of 19, the 412th largest town in South Dakota, with a median household income of $43,125, which is 43% lower than the state average. The poverty rate is 15.8%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 43% below the state average, indicating significant economic challenges.
- Only 5.9% of adults have a bachelor's degree, well below the national average of 35.7%.
Marvin Quick Facts
How Marvin 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 | 18 | 19 | +5.6% |
| Median household income | $38,750 | $43,125 | +11.3% |
How Marvin 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+)
Marvin Rankings in South Dakota
Explore South Dakota Rankings
Other Cities in Grant County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Milbank | 3,525 | $56,011 | 13.2% | $155,000 |
| Big Stone City | 706 | $63,333 | 24.9% | $151,200 |
| Revillo | 88 | $56,300 | 11.4% | N/A |
| La Bolt | 80 | $71,667 | 7.5% | $65,000 |
| Stockholm | 74 | N/A | 16.2% | $97,000 |
| Strandburg | 58 | $68,125 | 31.0% | $104,200 |
| Twin Brooks | 29 | N/A | 27.6% | $75,800 |
| Albee | 4 | N/A | 25.0% | N/A |
Cities Similar to Marvin
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Pembrook Colony | 19 | N/A | N/A | 0.0% | 0.0% |
| Prairie City | 20 | N/A | N/A | 0.0% | 0.0% |
| Vilas | 21 | N/A | N/A | 0.0% | 0.0% |
| Virgil | 20 | $38,750 | N/A | 0.0% | 0.0% |
| Crocker | 22 | N/A | N/A | 0.0% | 0.0% |
A note before these figures: with a population of 19, Marvin'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
Marvin is a small community located in South Dakota, within Grant County. The total population is 19. It ranks as the 412th most populous out of 439 Census-designated places in South Dakota.
Age Demographics
The median age in Marvin is 60.3 years. This is 59% higher than the state median of 38.0 years. Only 10.5% of residents are under 18, indicating fewer families with children. 10.5% 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 Marvin is $43,125. This is 43% lower than the state median of $75,081. It is also 47% lower than the national median of $80,734. The poverty rate stands at 15.8%. This is 32% higher than the state poverty rate of 11.9%. The survey records no unemployed residents in Marvin, which reflects the size of the sample rather than a labor market without joblessness. 100.0% of occupied housing units are owner-occupied. This homeownership rate is 46% higher than the state average of 68.6%.
Race & Ethnicity
Marvin has a predominantly White (non-Hispanic) population, comprising 94.7% of all residents.
Education
5.9% of residents aged 25 and older hold a bachelor's degree or higher. This is 82% 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 88.2%.
Data Sources & Methodology
All demographic data for Marvin, 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 Marvin, South Dakota?
Marvin, South Dakota has a population of 19 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Marvin, SD?
The median household income in Marvin is $43,125, which is 47% lower than the national median of $80,734.
What is the poverty rate in Marvin, SD?
The poverty rate in Marvin is 15.8%. This means approximately 3 residents live below the federal poverty line.
What is the racial makeup of Marvin, South Dakota?
Marvin's population is 94.7% White, 0.0% Black, 0.0% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Marvin, SD?
The Census Bureau does not publish a reliable median home value estimate for Marvin — there are too few owner-occupied homes in the ACS sample. The national median is $332,700.
How educated is Marvin, South Dakota?
5.9% of adults (25+) in Marvin hold a bachelor's degree or higher, and 0.0% hold a graduate or professional degree.