Sinai is a town located in Brookings County, South Dakota. Sinai has a 2025 population of 104. Sinai is currently growing at a rate of 1.96% annually and its population has increased by 8.33% since the most recent census, which recorded a population of 96 in 2020.
The average household income in Sinai is $68,621 with a poverty rate of 1.36%.The median age in Sinai is 24.9 years: 24.8 years for males, and 27.3 years for females.
Data after 2023 is projected based on recent change
The racial composition of Sinai includes 91.82% White, and smaller percentages for other race and multiracial populations.
Race | Population | Percentage (of total) |
---|---|---|
White | 202 | 91.82% |
Two or more races | 14 | 6.36% |
Other race | 4 | 1.82% |
Married
Widowed
Divorced
Separated
Never Married
Sinai's average per capita income is $47,083. Household income levels show a median of $52,188. The poverty rate stands at 1.36%.
Name | Median | Mean |
---|---|---|
Married Families | $78,750 | - |
Families | $77,813 | $77,123 |
Households | $52,188 | $68,621 |
Non Families | $40,982 | $52,352 |
Average Income
Median Household Income
Poverty Rate