Island Lake township is located in Lyon County, Minnesota. Island Lake township has a 2026 population of 172. Island Lake township is currently declining at a rate of 0% annually and its population has increased by 0.58% since the most recent census, which recorded a population of 171 in 2020.
The median household income in Island Lake township is $125,781 with a poverty rate of 3.09%. The median age in Island Lake township is 40.5 years: 46.1 years for males, and 37.8 years for females. For every 100 females there are 110.4 males.