Mound City
- County:
- Pulaski County
- County Seat:
- Yes
- Area (mi²):
- 0.675
- State:
- Illinois
Mound City is a city located in Pulaski County, Illinois. Mound City has a 2026 population of 481. It is also the county seat of Pulaski County. Mound City is currently declining at a rate of -1.64% annually and its population has decreased by -7.5% since the most recent census, which recorded a population of 520 in 2020.
The median household income in Mound City is $41,250 with a poverty rate of 16.37%. The median age in Mound City is 37.4 years: 41.1 years for males, and 29.8 years for females. For every 100 females there are 120.4 males.