
Harp township
- County:
- De Witt County
- County Seat:
- No
- Area (mi²):
- 31.186
- State:
- Illinois
Harp township is located in De Witt County, Illinois. Harp township has a 2025 population of 300. Harp township is currently growing at a rate of 0.67% annually and its population has increased by 1.35% since the most recent census, which recorded a population of 296 in 2020.
The average household income in Harp township is $75,547 with a poverty rate of 0%. The median age in Harp township is 37.2 years: 37.6 years for males, and 35.6 years for females.