Brentford, South Dakota Demographics & Population 2026
During the 2020–2024 ACS period, Brentford, South Dakota had a total population of 83, the 320th largest town in South Dakota. The poverty rate is 32.5%.
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 (32.5%), well above the national average of 12.4%.
Brentford Quick Facts
How Brentford 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 | 83 | -1.2% |
How Brentford 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+)
Brentford Rankings in South Dakota
Explore South Dakota Rankings
Other Cities in Spink County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Redfield | 1,989 | $58,229 | 6.0% | $120,200 |
| Doland | 209 | $64,922 | 12.9% | $59,200 |
| Ashton | 204 | $54,712 | 14.7% | $60,800 |
| Mellette | 199 | $106,964 | 10.1% | $201,000 |
| Tulare | 175 | $60,833 | 19.4% | $84,300 |
| Northville | 153 | $105,000 | 3.9% | $150,000 |
| Clark Colony | 139 | N/A | 40.3% | N/A |
| Conde | 128 | $73,571 | 8.6% | $51,000 |
| Frankfort | 128 | $68,750 | 6.3% | $67,500 |
| Glendale Colony | 112 | N/A | 8.9% | N/A |
Cities Similar to Brentford
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Fulton | 84 | $56,667 | $154,200 | 20.3% | 11.9% |
| Brandt | 82 | $60,625 | $80,000 | 9.0% | 12.2% |
| Raymond | 82 | $75,000 | $42,800 | 7.4% | 11.0% |
| Agar | 81 | N/A | $114,200 | 28.6% | 16.1% |
| Kaylor | 80 | N/A | $75,300 | 51.8% | 6.3% |
A note before these figures: with a population of 83, Brentford'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
Brentford is a small community located in South Dakota, within Spink County. The total population is 83. It ranks as the 320th most populous out of 439 Census-designated places in South Dakota.
Age Demographics
The median age in Brentford is 37.8 years. This is about the same as the state median of 38.0 years. 20.5% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.
Economy, Income & Housing
The poverty rate stands at 32.5%. This is 173% 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 Brentford, which reflects the size of the sample rather than a labor market without joblessness. 90.5% of occupied housing units are owner-occupied. This homeownership rate is 32% higher than the state average of 68.6%.
Race & Ethnicity
Every resident counted in Brentford was recorded as White (non-Hispanic). A figure of exactly 100.0% reflects a survey sample too small to capture the community's full composition rather than a precise measurement.
Education
22.4% of residents aged 25 and older hold a bachelor's degree or higher. This is 30% 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 86.2%.
Data Sources & Methodology
All demographic data for Brentford, 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 Brentford, South Dakota?
Brentford, South Dakota has a population of 83 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Brentford, SD?
The Census Bureau does not publish a reliable median household income estimate for Brentford — the community is too small for the ACS sample. The national median is $80,734.
What is the poverty rate in Brentford, SD?
The poverty rate in Brentford is 32.5%. This means approximately 27 residents live below the federal poverty line.
What is the racial makeup of Brentford, South Dakota?
Brentford's population is 100.0% White, 0.0% Black, 0.0% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Brentford, SD?
The Census Bureau does not publish a reliable median home value estimate for Brentford — there are too few owner-occupied homes in the ACS sample. The national median is $332,700.
How educated is Brentford, South Dakota?
22.4% of adults (25+) in Brentford hold a bachelor's degree or higher, and 12.1% hold a graduate or professional degree.