Richview township
- County:
- Washington County
- County Seat:
- No
- Area (mi²):
- 11.951
- State:
- Illinois
Richview township is located in Washington County, Illinois. Richview township has a 2026 population of 311. Richview township is currently declining at a rate of -0.32% annually and its population has decreased by -1.58% since the most recent census, which recorded a population of 316 in 2020.
The median household income in Richview township is $69,886 with a poverty rate of 6.18%. The median age in Richview township is 44.6 years: 43.6 years for males, and 49.5 years for females. For every 100 females there are 146.7 males.