Armour, South Dakota Demographics & Population 2026
During the 2020–2024 ACS period, Armour, South Dakota had a total population of 675, the 125th largest city in South Dakota, with a median household income of $81,917, which is 9% higher than the state average. The poverty rate is 11.1%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Housing is very affordable with a home-value-to-income ratio of just 1.3x.
- Near full employment with an unemployment rate of just 0.9%.
Armour Quick Facts
How Armour 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 | 647 | 675 | +4.3% |
| Median household income | $64,250 | $81,917 | +27.5% |
| Median home value | $93,300 | $105,500 | +13.1% |
How Armour 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+)
Armour Rankings in South Dakota
Explore South Dakota Rankings
Other Cities in Douglas County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Corsica | 699 | $59,250 | 8.2% | $162,500 |
| Delmont | 183 | $42,000 | 18.0% | $86,700 |
| New Holland | 4 | N/A | 0.0% | N/A |
Cities Similar to Armour
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Blucksberg Mountain | 692 | $89,500 | $328,900 | 21.5% | 4.3% |
| Canistota | 711 | $76,250 | $137,000 | 17.1% | 14.1% |
| Colton | 736 | $83,750 | $192,900 | 14.6% | 14.3% |
| White River | 606 | $82,692 | $75,000 | 15.3% | 35.7% |
| Onida | 644 | $70,000 | $178,600 | 29.6% | 4.9% |
A note before these figures: with a population of 675, Armour'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
Armour is a small community located in South Dakota, within Douglas County. The total population is 675. It ranks as the 125th most populous out of 439 Census-designated places in South Dakota.
Age Demographics
The median age in Armour is 50.2 years. This is 32% higher than the state median of 38.0 years. 14.4% 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 Armour is $81,917. This is 9% higher than the state median of $75,081. It is also 1% higher than the national median of $80,734. The poverty rate stands at 11.1%. This is 7% lower than the state poverty rate of 11.9%. The unemployment rate is 0.9%. This is 70% lower than the state rate of 2.9%. The median home value is $105,500. Housing costs are 59% lower than the state median of $257,400. With a home-value-to-income ratio of just 1.3x, Armour is one of the most affordable housing markets in the area. 76.2% of occupied housing units are owner-occupied. This homeownership rate is 11% higher than the state average of 68.6%.
Race & Ethnicity
Armour has a predominantly White (non-Hispanic) population, comprising 85.0% of all residents. Hispanic or Latino residents account for 9.6%. The Hispanic or Latino population is significantly higher than the state average (9.6% vs 4.8%).
Education
30.6% of residents aged 25 and older hold a bachelor's degree or higher. This is 4% 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 90.3%.
Data Sources & Methodology
All demographic data for Armour, 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 Armour, South Dakota?
Armour, South Dakota has a population of 675 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Armour, SD?
The median household income in Armour is $81,917, which is 1% higher than the national median of $80,734.
What is the poverty rate in Armour, SD?
The poverty rate in Armour is 11.1%. This means approximately 70 residents live below the federal poverty line.
What is the racial makeup of Armour, South Dakota?
Armour's population is 85.0% White, 2.5% Black, 9.6% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Armour, SD?
The median home value in Armour is $105,500. The home-value-to-income ratio is 1.3x.
How educated is Armour, South Dakota?
30.6% of adults (25+) in Armour hold a bachelor's degree or higher, and 8.6% hold a graduate or professional degree.