Blair Township is a civil township of Grand Traverse County in the U.S. state of Michigan. As of the 2000 census, the township population was 6,448.
According to the United States Census Bureau, the township has a total area of 36.0 square miles (93.1 km²), of which, 35.6 square miles (92.3 km²) of it is land and 0.3 square miles (0.9 km²) of it (0.95%) is water.
As of the census of 2000, there were 6,448 people, 2,295 households, and 1,684 families residing in the township. The population density was 181.0 per square mile (69.9/km²). There were 2,482 housing units at an average density of 69.7 per square mile (26.9/km²). The racial makeup of the township was 94.70% White, 0.25% African American, 1.64% Native American, 0.42% Asian, 0.02% Pacific Islander, 1.52% from other races, and 1.46% from two or more races. Hispanic or Latino of any race were 2.48% of the population.