Greenville
- County:
- Bond County
- County Seat:
- Yes
- Area (mi²):
- 6.309
- State:
- Illinois
Greenville is a city located in Bond County, Illinois. Greenville has a 2026 population of 7,126. It is also the county seat of Bond County. Greenville is currently declining at a rate of -0.36% annually and its population has decreased by -1.44% since the most recent census, which recorded a population of 7,230 in 2020.