Grattan township is located in Itasca County, Minnesota. Grattan township has a 2026 population of 46. Grattan township is currently growing at a rate of 2.22% annually and its population has increased by 2.22% since the most recent census, which recorded a population of 45 in 2020.
The median household income in Grattan township is $101,875 with a poverty rate of 0%. The median age in Grattan township is 41.9 years: 46.2 years for males, and 41.7 years for females. For every 100 females there are 150.0 males.