
Ritchie
- County:
- Grundy County
- County Seat:
- No
- Area (mi²):
- 1.034
- State:
- Illinois
Ritchie is a CDP located in Grundy County, Illinois. Ritchie has a 2025 population of 193. Ritchie is currently growing at a rate of 7.22% annually and its population has increased by 17.68% since the most recent census, which recorded a population of 164 in 2020.
The average household income in Ritchie is $94,300 with a poverty rate of 5.6%. The median age in Ritchie is 41.1 years: 41.4 years for males, and 32.8 years for females.