Mayfield Colony, South Dakota Demographics & Population 2026
During the 2020–2024 ACS period, Mayfield Colony, South Dakota had a total population of 77, the 332nd largest community in South Dakota. The poverty rate is 69.6%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- More than 1 in 4 residents live below the poverty line (69.6%), well above the national average of 12.4%.
- 100.0% of adults hold a bachelor's degree or higher — top 10% in South Dakota.
Mayfield Colony Quick Facts
How Mayfield Colony 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 | 84 | 77 | -8.3% |
How Mayfield Colony Compares
Median Household Income
Median Home Value
Economy & Housing
Employment
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+)
Mayfield Colony Rankings in South Dakota
Explore South Dakota Rankings
Other Cities in Clark County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Clark | 1,359 | $58,750 | 10.7% | $122,800 |
| Willow Lake | 433 | $72,875 | 1.1% | $149,000 |
| Naples | 96 | N/A | 53.1% | $106,300 |
| Raymond | 82 | $75,000 | 11.0% | $42,800 |
| Bradley | 78 | $57,500 | 11.5% | $94,200 |
| Garden City | 78 | $93,750 | 4.0% | N/A |
| Vienna | 49 | $43,125 | 0.0% | N/A |
| Crocker | 22 | N/A | 0.0% | N/A |
Cities Similar to Mayfield Colony
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Cameron Colony | 77 | N/A | N/A | 39.0% | 39.0% |
| Interior | 77 | N/A | $137,500 | 25.0% | 68.8% |
| Bradley | 78 | $57,500 | $94,200 | 23.4% | 11.5% |
| Carthage | 78 | $46,875 | $81,300 | 15.9% | 9.0% |
| Garden City | 78 | $93,750 | N/A | 9.6% | 4.0% |
A note before these figures: with a population of 77, Mayfield Colony'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
Mayfield Colony is a small community located in South Dakota, within Clark County. The total population is 77. It ranks as the 332nd most populous out of 439 Census-designated places in South Dakota.
Age Demographics
The median age in Mayfield Colony is 20.8 years. This is 45% lower than the state median of 38.0 years.
Economy, Income & Housing
The poverty rate stands at 69.6%. This is 484% higher than the state poverty rate of 11.9%. With more than one in five residents living below the poverty line, economic hardship is a significant challenge for the community. The survey records no unemployed residents in Mayfield Colony, which reflects the size of the sample rather than a labor market without joblessness.
Race & Ethnicity
The largest racial or ethnic group in Mayfield Colony is White (non-Hispanic), making up 77.9% of the population. Asian residents account for 22.1%. The Asian population is significantly higher than the state average (22.1% vs 1.4%).
Education
100.0% of residents aged 25 and older hold a bachelor's degree or higher. This places Mayfield Colony in the top 10% of all cities in the state for educational attainment. This is 213% higher than the state rate of 31.9%. Nationally, 35.7% of adults hold at least a bachelor's degree. No surveyed resident aged 25 or older reported leaving school before earning a high school diploma, though a rate of exactly 100% reflects the limits of a small sample.
Data Sources & Methodology
All demographic data for Mayfield Colony, 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 Mayfield Colony, South Dakota?
Mayfield Colony, South Dakota has a population of 77 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Mayfield Colony, SD?
The Census Bureau does not publish a reliable median household income estimate for Mayfield Colony — the community is too small for the ACS sample. The national median is $80,734.
What is the poverty rate in Mayfield Colony, SD?
The poverty rate in Mayfield Colony is 69.6%. This means approximately 39 residents live below the federal poverty line.
What is the racial makeup of Mayfield Colony, South Dakota?
Mayfield Colony's population is 77.9% White, 0.0% Black, 0.0% Hispanic/Latino, and 22.1% Asian.
What is the median home value in Mayfield Colony, SD?
The Census Bureau does not publish a reliable median home value estimate for Mayfield Colony — there are too few owner-occupied homes in the ACS sample. The national median is $332,700.
How educated is Mayfield Colony, South Dakota?
100.0% of adults (25+) in Mayfield Colony hold a bachelor's degree or higher, and 0.0% hold a graduate or professional degree.