Voltaire township is located in Sherman County, Kansas. Voltaire township has a 2026 population of 226. Voltaire township is currently declining at a rate of 0% annually and its population has decreased by -0.44% since the most recent census, which recorded a population of 227 in 2020.
The median household income in Voltaire township is $205,756 with a poverty rate of 10.79%. The median age in Voltaire township is 51.5 years: 51 years for males, and 52.1 years for females. For every 100 females there are 133.6 males.