Union township is located in Clinton County, Indiana. Union township has a 2026 population of 933. Union township is currently growing at a rate of 0.32% annually and its population has decreased by 0% since the most recent census, which recorded a population of 933 in 2020.
The median household income in Union township is $96,483 with a poverty rate of 1.56%. The median age in Union township is 56.8 years: 56 years for males, and 58.5 years for females. For every 100 females there are 104.7 males.