According to the United States Census Bureau, the township has a total area of 36.0 square miles (93 km2), of which 35.6 square miles (92 km2) is land and 0.3 square miles (0.78 km2) (0.95%) is water.
US 31 runs north–south and east–west through the northwest of the township. The highway continues west toward Interlochen and Benzie County, and runs north to Traverse City.
M-37 runs north–south through the township. To the south, M-37 continues toward Buckley and Mesick, and to the north with US 31 to Traverse City.
Slights (occasionally spelled Sleights, as is spelled on a nearby road) is a ghost town located at 44°39′28.2″N85°35′36.9″W / 44.657833°N 85.593583°W / 44.657833; -85.593583. Slights was founded as a station on the Chicago and West Michigan Railway south of Traverse City, near the Boardman River. A post office was open at Slights from 1893 until 1895, and briefly again in 1898.[9]
The downtown district of Traverse City lies about 6 miles (9.7 km) north of Blair Township.
Demographics
As of the census[1] of 2000, there were 6,448 people, 2,295 households, and 1,684 families residing in the township. The population density was 181.0 inhabitants 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.
There were 2,295 households, out of which 39.6% had children under the age of 18 living with them, 55.7% were married couples living together, 12.3% had a female householder with no husband present, and 26.6% were non-families. 18.5% of all households were made up of individuals, and 3.5% had someone living alone who was 65 years of age or older. The average household size was 2.80 and the average family size was 3.18.
In the township the population was spread out, with 30.1% under the age of 18, 8.9% from 18 to 24, 35.5% from 25 to 44, 19.0% from 45 to 64, and 6.6% who were 65 years of age or older. The median age was 32 years. For every 100 females, there were 102.0 males. For every 100 females age 18 and over, there were 99.1 males.
The median income for a household in the township was $40,125, and the median income for a family was $42,740. Males had a median income of $30,020 versus $19,885 for females. The per capita income for the township was $14,745. About 7.2% of families and 11.0% of the population were below the poverty line, including 11.4% of those under age 18 and 9.6% of those age 65 or over.
^Romig, Walter (1986). Michigan Place Names: The History of the Founding and the Naming of More Than Five Thousand Past and Present Michigan Communities. Detroit: Wayne State University Press. p. 52. ISBN0-8143-1838-X.
^Romig, Walter (1986). Michigan Place Names: The History of the Founding and the Naming of More Than Five Thousand Past and Present Michigan Communities. Detroit: Wayne State University Press. p. 303. ISBN0-8143-1838-X.
^Romig, Walter (1986). Michigan Place Names: The History of the Founding and the Naming of More Than Five Thousand Past and Present Michigan Communities. Detroit: Wayne State University Press. p. 376. ISBN0-8143-1838-X.
^Romig, Walter (1986). Michigan Place Names: The History of the Founding and the Naming of More Than Five Thousand Past and Present Michigan Communities. Detroit: Wayne State University Press. p. 518. ISBN0-8143-1838-X.