Polk township
- County:
- Macoupin County
- County Seat:
- No
- Area (mi²):
- 35.948
- State:
- Illinois
Polk township is located in Macoupin County, Illinois. Polk township has a 2026 population of 570. Polk township is currently declining at a rate of -0.7% annually and its population has decreased by -2.06% since the most recent census, which recorded a population of 582 in 2020.
The median household income in Polk township is $83,864 with a poverty rate of 14.06%. The median age in Polk township is 53.3 years: 52.2 years for males, and 53.9 years for females. For every 100 females there are 119.4 males.