Sinai, SD
Population 220 · South Dakota
About Sinai, SD
Sinai is a small community in South Dakota with a population of 220 residents. The median household income is $52,188 per year, which is near the national average. The median age in Sinai is 24.9 years.
Housing in Sinai has a median home value of $91,500 and median monthly rent of $0. Of the 83 total housing units, the majority are owner-occupied, with 51 owner-occupied and 25 renter-occupied units.
The unemployment rate in Sinai is 7.6% and the poverty rate is 1.4%. 21.3% of residents hold a bachelor's degree or higher. The average commute time is 29.3 minutes.
Cost of Living in Sinai, SD
Compared to national averages, Sinai has a median household income of $52,188 (31% below the national median of $75,149). Home values average $91,500, which is 63% below the national median. Monthly rent at $0 is 100% below the US average of $1,163. Within South Dakota, Sinai's income is 19% below the state average of $64,650, and home values are 36% below the state median of $143,757.
Why Live in Sinai, SD?
Sinai offers affordable housing with a median home value of $91,500, below the US average of $244,900, and rent that’s lower than the national average at $0/month, and a low poverty rate of 1.4%, better than the national average.
Potential considerations include median household income ($52,188) that falls below the national average. However, Sinai’s smaller community size offers a quieter lifestyle and tight-knit neighborhoods.
Sinai has a population of 220 with a median age of 24.9 years. Compare Sinai with other cities to see how it stacks up, or explore all cities in South Dakota.
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Data source: US Census Bureau ACS 5-Year Estimates. Last updated: 2026-04-05.
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Frequently Asked Questions about Sinai
What is the population of Sinai, SD?
The population of Sinai, SD is 220 according to the latest Census data.
What is the median household income in Sinai?
The median household income in Sinai, SD is $52,188 per year.
What is the median home value in Sinai?
The median home value in Sinai, SD is $91,500.
What is the average rent in Sinai?
The median monthly rent in Sinai, SD is $0.
What is the unemployment rate in Sinai?
The unemployment rate in Sinai, SD is 7.6%.