Long Branch township
- County:
- Saline County
- County Seat:
- No
- Area (mi²):
- 18.252
- State:
- Illinois
Long Branch township is located in Saline County, Illinois. Long Branch township has a 2026 population of 240. Long Branch township is currently declining at a rate of -0.41% annually and its population has decreased by -3.61% since the most recent census, which recorded a population of 249 in 2020.
The median age in Long Branch township is 56.5 years: 58.4 years for males, and 51.7 years for females. For every 100 females there are 100.8 males.