Cross Plains township is located in Hutchinson County, South Dakota. Cross Plains township has a 2026 population of 128. Cross Plains township is currently declining at a rate of -0.78% annually but its population has increased by 0.79% since the most recent census, which recorded a population of 127 in 2020.
The median household income in Cross Plains township is $151,513 with a poverty rate of 1.25%. The median age in Cross Plains township is 25.7 years: 34.4 years for males, and 25.5 years for females. For every 100 females there are 70.2 males.