Raisin Charter Township is a charter township of Lenawee County in the U.S. state of Michigan. The population was 6,507 at the 2000 census.
According to the United States Census Bureau, the township has a total area of 36.5 square miles (95 km2), of which 36.2 square miles (94 km2) is land and 0.2 square miles (0.52 km2) (0.55%) is water. The most recent flag was designed by Scotty Magee of Adrian in 2006.
As of the census of 2000, there were 6,507 people, 2,265 households, and 1,845 families residing in the township. The population density was 179.5 per square mile (69.3/km²). There were 2,347 housing units at an average density of 64.7 per square mile (25.0/km²). The racial makeup of the township was 96.00% White, 0.54% African American, 0.43% Native American, 0.49% Asian, 1.54% from other races, and 1.00% from two or more races. Hispanic or Latino of any race were 4.81% of the population.