Zanesville township is located in Montgomery County, Illinois. Zanesville township has a 2026 population of 413. Zanesville township is currently declining at a rate of -0.48% annually and its population has decreased by -2.59% since the most recent census, which recorded a population of 424 in 2020.
The median household income in Zanesville township is $145,625 with a poverty rate of 1.97%. The median age in Zanesville township is 41.3 years: 30.6 years for males, and 43.6 years for females. For every 100 females there are 120.1 males.