
Forreston
- County:
- Ogle County
- County Seat:
- No
- Area (mi²):
- 0.943
- State:
- Illinois
Forreston is a village located in Ogle County, Illinois. Forreston has a 2025 population of 1,395. Forreston is currently declining at a rate of -0.5% annually and its population has decreased by -2.58% since the most recent census, which recorded a population of 1,432 in 2020.
The average household income in Forreston is $74,128 with a poverty rate of 4.36%. The median age in Forreston is 47.5 years: 44.1 years for males, and 52 years for females.