Henry township is located in Codington County, South Dakota. Henry township has a 2026 population of 94. Henry township is currently declining at a rate of 0% annually and its population has increased by 1.08% since the most recent census, which recorded a population of 93 in 2020.
The median age in Henry township is 51.8 years: 50.5 years for males, and 55.2 years for females. For every 100 females there are 64.6 males.