Martin township is located in Crawford County, Illinois. Martin township has a 2026 population of 534. Martin township is currently growing at a rate of 0.19% annually and its population has decreased by 0% since the most recent census, which recorded a population of 534 in 2020.
The median household income in Martin township is $11,568 with a poverty rate of 63.66%. The median age in Martin township is 42.6 years: 42.9 years for males, and 39 years for females. For every 100 females there are 104.0 males.