Gem Lake
- County:
- Anoka County
- County Seat:
- No
- Area (mi²):
- 1.045
- State:
- Minnesota
Gem Lake is a city located in Anoka County, Minnesota. Gem Lake has a 2026 population of 515. Gem Lake is currently growing at a rate of 0.59% annually but its population has decreased by -3.38% since the most recent census, which recorded a population of 533 in 2020.
The median household income in Gem Lake is $124,583 with a poverty rate of 3.11%. The median age in Gem Lake is 57.3 years: 59 years for males, and 54.5 years for females. For every 100 females there are 112.8 males.