
Troy Grove
- County:
- LaSalle County
- County Seat:
- No
- Area (mi²):
- 0.687
- State:
- Illinois
Troy Grove is a village located in LaSalle County, Illinois. Troy Grove has a 2025 population of 219. Troy Grove is currently declining at a rate of -0.45% annually and its population has decreased by -1.79% since the most recent census, which recorded a population of 223 in 2020.
The average household income in Troy Grove is $95,438 with a poverty rate of 34.83%. The median age in Troy Grove is 30.1 years: 27.2 years for males, and 34.3 years for females.