Blissville township
- County:
- Jefferson County
- County Seat:
- No
- Area (mi²):
- 34.711
- State:
- Illinois
Blissville township is located in Jefferson County, Illinois. Blissville township has a 2026 population of 373. Blissville township is currently declining at a rate of -0.53% annually and its population has decreased by -1.58% since the most recent census, which recorded a population of 379 in 2020.
The median household income in Blissville township is $69,844 with a poverty rate of 27.11%. The median age in Blissville township is 39.2 years: 38.4 years for males, and 43.1 years for females. For every 100 females there are 133.3 males.