Keith township
- County:
- Wayne County
- County Seat:
- No
- Area (mi²):
- 36.023
- State:
- Illinois
Keith township is located in Wayne County, Illinois. Keith township has a 2026 population of 375. Keith township is currently growing at a rate of 0.27% annually but its population has decreased by -2.09% since the most recent census, which recorded a population of 383 in 2020.
The median household income in Keith township is $66,277 with a poverty rate of 3.31%. The median age in Keith township is 33.8 years: 33.5 years for males, and 43.3 years for females. For every 100 females there are 106.8 males.