West Jersey township is located in Stark County, Illinois. West Jersey township has a 2026 population of 236. West Jersey township is currently declining at a rate of 0% annually and its population has decreased by -2.48% since the most recent census, which recorded a population of 242 in 2020.
The median age in West Jersey township is 77.7 years: 78.4 years for males, and 77.3 years for females. For every 100 females there are 62.0 males.