Johnson township is located in Knox County, Indiana. Johnson township has a 2026 population of 1,250. Johnson township is currently declining at a rate of -0.4% annually and its population has decreased by -0.71% since the most recent census, which recorded a population of 1,259 in 2020.
The median household income in Johnson township is $113,674 with a poverty rate of 1.51%. The median age in Johnson township is 31.6 years: 31.6 years for males, and 31.7 years for females. For every 100 females there are 94.4 males.