Lewis township is located in Mille Lacs County, Minnesota. Lewis township has a 2026 population of 49. Lewis township is currently declining at a rate of 0% annually and its population has increased by 4.26% since the most recent census, which recorded a population of 47 in 2020.
The median age in Lewis township is 33 years: 33.5 years for males, and 30.7 years for females. For every 100 females there are 105.6 males.