Lake Sinai is located in Brookings County, South Dakota. Lake Sinai has a 2025 population of 178. Lake Sinai is currently growing at a rate of 0.56% annually and its population has increased by 6.59% since the most recent census, which recorded a population of 167 in 2020.
The average household income in Lake Sinai is $84,485 with a poverty rate of 0%. The median age in Lake Sinai is 72.6 years: 72.1 years for males, and 74.4 years for females.
Data after 2023 is projected based on recent change
The racial composition of Lake Sinai includes 100% White, and smaller percentages for and multiracial populations.
White (100.0%)
Race | Population | Percentage (of total) |
---|---|---|
White | 148 | 100% |
Married
Widowed
Divorced
Separated
Never Married
Lake Sinai's average per capita income is $78,194. Household income levels show a median of $74,167. The poverty rate stands at 0%.
Name | Median | Mean |
---|---|---|
Households | $74,167 | $84,485 |
Families | $74,167 | $84,485 |
Married Families | $73,946 | - |
Non Families | - | - |
Average Income
Median Household Income
Poverty Rate