Swan township is located in Smith County, Kansas. Swan township has a 2026 population of 36. Swan township is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 36 in 2020.
The median age in Swan township is 57.5 years: 57.5 years for males, and 57.5 years for females. For every 100 females there are 100.0 males.