Plankinton, South Dakota Demographics & Population 2026
During the 2020–2024 ACS period, Plankinton, South Dakota had a total population of 603, the 132nd largest city in South Dakota, with a median household income of $74,833, which is about the same as the state average. The poverty rate is 15.6%.
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 1.5x.
Plankinton Quick Facts
How Plankinton 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 | 637 | 603 | -5.3% |
| Median household income | $76,250 | $74,833 | -1.9% |
| Median home value | $110,500 | $114,800 | +3.9% |
How Plankinton 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+)
Plankinton Rankings in South Dakota
Explore South Dakota Rankings
Other Cities in Aurora County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| White Lake | 469 | $48,889 | 12.6% | $62,900 |
| Stickney | 284 | $59,750 | 13.7% | $131,600 |
| Aurora Center | 16 | N/A | 0.0% | N/A |
Cities Similar to Plankinton
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Parmelee | 584 | N/A | N/A | 9.3% | 84.9% |
| White River | 606 | $82,692 | $75,000 | 15.3% | 35.7% |
| Murdo | 599 | $67,045 | $132,400 | 23.7% | 21.7% |
| Herreid | 560 | $72,250 | $122,900 | 41.5% | 3.4% |
| Onida | 644 | $70,000 | $178,600 | 29.6% | 4.9% |
A note before these figures: with a population of 603, Plankinton'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
Plankinton is a small community located in South Dakota, within Aurora County. The total population is 603. It ranks as the 132nd most populous out of 439 Census-designated places in South Dakota.
Age Demographics
The median age in Plankinton is 42.4 years. This is 12% higher than the state median of 38.0 years.
Economy, Income & Housing
The median household income in Plankinton is $74,833. This is about the same as the state median of $75,081. It is also 7% lower than the national median of $80,734. The poverty rate stands at 15.6%. This is 31% higher than the state poverty rate of 11.9%. The survey records no unemployed residents in Plankinton, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $114,800. Housing costs are 55% lower than the state median of $257,400. With a home-value-to-income ratio of just 1.5x, Plankinton is one of the most affordable housing markets in the area. 69.0% of occupied housing units are owner-occupied.
Race & Ethnicity
The largest racial or ethnic group in Plankinton is White (non-Hispanic), making up 79.6% of the population. Hispanic or Latino residents account for 18.9%. The Hispanic or Latino population is significantly higher than the state average (18.9% vs 4.8%). The Asian population (0.3%) is well below the state average of 1.4%.
Education
27.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 14% 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 92.8%.
Data Sources & Methodology
All demographic data for Plankinton, 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 Plankinton, South Dakota?
Plankinton, South Dakota has a population of 603 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Plankinton, SD?
The median household income in Plankinton is $74,833, which is 7% lower than the national median of $80,734.
What is the poverty rate in Plankinton, SD?
The poverty rate in Plankinton is 15.6%. This means approximately 94 residents live below the federal poverty line.
What is the racial makeup of Plankinton, South Dakota?
Plankinton's population is 79.6% White, 0.0% Black, 18.9% Hispanic/Latino, and 0.3% Asian.
What is the median home value in Plankinton, SD?
The median home value in Plankinton is $114,800. The home-value-to-income ratio is 1.5x.
How educated is Plankinton, South Dakota?
27.5% of adults (25+) in Plankinton hold a bachelor's degree or higher, and 2.9% hold a graduate or professional degree.