Edison township is located in Minnehaha County, South Dakota. Edison township has a 2026 population of 536. Edison township is currently declining at a rate of -0.19% annually and its population has decreased by -3.77% since the most recent census, which recorded a population of 557 in 2020.
The median household income in Edison township is $148,214 with a poverty rate of 0%. The median age in Edison township is 45.6 years: 44.9 years for males, and 46.2 years for females. For every 100 females there are 105.7 males.