
West Union
- County:
- Clark County
- County Seat:
- No
- Area (mi²):
- 1.808
- State:
- Illinois
West Union is a CDP located in Clark County, Illinois. West Union has a 2025 population of 174. West Union is currently declining at a rate of -4.4% annually and its population has decreased by -27.8% since the most recent census, which recorded a population of 241 in 2020.
The average household income in West Union is $70,254 with a poverty rate of 15.24%. The median age in West Union is 61.2 years: 46 years for males, and 61.3 years for females.