Pea Ridge
- County:
- Brown County
- County Seat:
- No
- Area (mi²):
- 37.32
- State:
- Illinois
Pea Ridge is located in Brown County, Illinois. Pea Ridge has a 2025 population of 187 . Pea Ridge is currently growing at a rate of 0.54% annually and its population has increased by 2.19% since the most recent census, which recorded a population of 183 in 2020.
The median age in Pea Ridge is 75.1 years: 0 years for males, and 0 years for females. For every 100 females there are 88.9 males.