Irishtown township
- County:
- Clinton County
- County Seat:
- No
- Area (mi²):
- 24.949
- State:
- Illinois
Irishtown township is located in Clinton County, Illinois. Irishtown township has a 2026 population of 1,050. Irishtown township is currently growing at a rate of 0.86% annually and its population has increased by 1.94% since the most recent census, which recorded a population of 1,030 in 2020.
The median household income in Irishtown township is $51,833 with a poverty rate of 19.43%. The median age in Irishtown township is 53.3 years: 52.8 years for males, and 53.8 years for females. For every 100 females there are 115.1 males.