Sinai town, South Dakota Demographics & Population 2026
As of 2026, Sinai town, South Dakota has a total population of 220, the 227th largest city in South Dakota, with a median household income of $52,188, which is 28% lower than the state average. The poverty rate is 1.4%.
Key Takeaways
- An exceptionally low poverty rate of 1.4% — among the lowest in South Dakota.
- Housing is very affordable with a home-value-to-income ratio of just 1.8x.
Sinai town Quick Facts
How Sinai town Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
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: 33 | National average: 60
Education
Educational Attainment (Adults 25+)
Sinai town Rankings in South Dakota
Explore South Dakota Rankings
Other Cities in Brookings County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Brookings city | 23,710 | $61,979 | 16.1% | $243,600 |
| Volga city | 2,246 | $75,417 | 7.5% | $220,200 |
| Aurora town | 1,407 | $90,612 | 2.1% | $219,100 |
| Elkton city | 971 | $58,750 | 27.9% | $183,800 |
| White city | 438 | $63,125 | 5.3% | $141,700 |
| Bruce city | 283 | $52,500 | 7.1% | $95,000 |
| Bushnell town | 66 | $91,250 | 9.1% | $87,500 |
| Wood town | 55 | $34,375 | 40.0% | N/A |
Cities Similar to Sinai town
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Gary city | 227 | $49,375 | $72,500 | 9.2% | 8.8% |
| Eden town | 206 | N/A | N/A | 38.4% | 1.5% |
| Horse Creek CDP | 205 | N/A | N/A | 0.0% | 97.6% |
| Hecla city | 204 | N/A | $47,100 | 5.8% | 9.3% |
| South Shore town | 232 | $56,667 | $82,800 | 13.8% | 26.3% |
Population Overview
Sinai town is a small community located in South Dakota, within Brookings County. The total population is 220. It ranks as the 227th most populous out of 439 cities and towns in South Dakota.
Age Demographics
The median age in Sinai town is 24.9 years. This is 34% lower than the state median of 37.7 years. With 42.7% of the population under 18, Sinai town has a notably young demographic profile, suggesting a family-oriented community.
Economy, Income & Housing
The median household income in Sinai town is $52,188. This is 28% lower than the state median of $72,421. Compared to the national median of $78,538, household income here is 34% lower. The poverty rate stands at 1.4%. This is 89% lower than the state poverty rate of 12.0%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 7.6%. This is 154% higher than the state rate of 3.0%. The median home value is $91,500. Housing costs are 61% lower than the state median of $236,800. With a home-value-to-income ratio of just 1.8x, Sinai town is one of the most affordable housing markets in the area. 67.1% of occupied housing units are owner-occupied. This homeownership rate is 2% lower than the state average of 68.6%.
Race & Ethnicity
Sinai town has a predominantly White (non-Hispanic) population, comprising 91.4% of all residents. Hispanic or Latino residents account for 8.6%. The Hispanic or Latino population is significantly higher than the state average (8.6% vs 4.6%).
Education
21.3% of residents aged 25 and older hold a bachelor's degree or higher. This is 32% lower than the state rate of 31.1%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 82.4%.
Data Sources & Methodology
All demographic data for Sinai town, South Dakota is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. 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. For official data, visit data.census.gov.
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Frequently Asked Questions
What is the population of Sinai town, South Dakota?
Sinai town, South Dakota has a population of 220 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Sinai town, SD?
The median household income in Sinai town is $52,188, which is 34% lower the national median of $78,538.
What is the poverty rate in Sinai town, SD?
The poverty rate in Sinai town is 1.4%. This means approximately 3 residents live below the federal poverty line.
What is the racial makeup of Sinai town, South Dakota?
Sinai town's population is 91.4% White, 0.0% Black, 8.6% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Sinai town, SD?
The median home value in Sinai town is $91,500. The home-value-to-income ratio is 1.8x.
How educated is Sinai town, South Dakota?
21.3% of adults (25+) in Sinai town hold a bachelor's degree or higher, and 1.8% hold a graduate or professional degree.