Eagarville
- County:
- Macoupin County
- County Seat:
- No
- Area (mi²):
- 0.911
- State:
- Illinois
Eagarville is a village located in Macoupin County, Illinois. Eagarville has a 2026 population of 115. Eagarville is currently declining at a rate of -0.86% annually and its population has decreased by -1.71% since the most recent census, which recorded a population of 117 in 2020.