Lake Sinai Flag

Lake Sinai

County Seat:
No
Area (mi²):
33.27
State:
South Dakota

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.

178
Total Population
5
Density (mi²)
1 0.56%
Growth

Lake Sinai Population

Demographics

Economics and Income Statistics

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)