
Bath
- County:
- Mason County
- County Seat:
- No
- Area (mi²):
- 0.365
- State:
- Illinois
Bath is a village located in Mason County, Illinois. Bath has a 2025 population of 256. Bath is currently declining at a rate of -1.54% annually and its population has decreased by -6.91% since the most recent census, which recorded a population of 275 in 2020.
The average household income in Bath is $47,392 with a poverty rate of 15.04%. The median age in Bath is 59.4 years: 56.8 years for males, and 61.5 years for females.