
Freeport
- County:
- Stephenson County
- County Seat:
- Yes
- Area (mi²):
- 11.867
- State:
- Illinois
Freeport is a city located in Stephenson County, Illinois. Freeport has a 2025 population of 22,629. It is also the county seat of Stephenson County. Freeport is currently declining at a rate of -1.11% annually and its population has decreased by -5.3% since the most recent census, which recorded a population of 23,896 in 2020.
The average household income in Freeport is $65,211 with a poverty rate of 18.18%. The median age in Freeport is 43.2 years: 41.6 years for males, and 45.2 years for females.