| Official Name: | Bois Blanc Township, Michigan |
| Settlement Type: | Civil township |
| Pushpin Map: | Michigan#USA |
| Pushpin Label Position: | left |
| Pushpin Label: | Bois Blanc Township |
| Pushpin Map Caption: | Location within the state of Michigan |
| Mapsize: | 250 |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Michigan |
| Subdivision Type2: | County |
| Subdivision Name2: | Mackinac |
| Government Footnotes: | [1] [2] |
| Leader Title: | Supervisor |
| Leader Name: | Brent Sharpe |
| Leader Title1: | Clerk |
| Leader Name1: | Diane Akright |
| Established Title: | Established |
| Established Date: | 1895 |
| Unit Pref: | Imperial |
| Area Total Km2: | 126.18 |
| Area Land Km2: | 90.93 |
| Area Water Km2: | 35.25 |
| Area Total Sq Mi: | 48.72 |
| Area Land Sq Mi: | 35.11 |
| Area Water Sq Mi: | 13.61 |
| Population As Of: | 2020 |
| Population Footnotes: | [3] |
| Population Total: | 100 |
| Population Density Sq Mi: | 2.85 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation M: | 185 |
| Elevation Ft: | 607 |
| Coordinates: | 45.7583°N -84.465°W |
| Postal Code Type: | ZIP code(s) |
| Postal Code: | 49775 (Pointe Aux Pins) |
| Area Code: | 231 |
| Blank Name: | FIPS code |
| Blank Info: | 26-09500[4] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1625960 |
Bois Blanc Township is a civil township of Mackinac County in the U.S. state of Michigan. The population was 100 at the 2020 census.[3] The insular township occupies Bois Blanc Island, as well as some smaller outlying islands within Lake Huron. The nearby Round Island is administered by the city of Mackinac Island.
The township is served by Bois Blanc Pines School District, which is the smallest school district in terms of enrollment in the state of Michigan and among the nation. The district had an enrollment of four students for the 2021–22 school year.[5]
"Bois Blanc" is French for "white wood".[6] The name is commonly thought to be a reference to either: (a) the paper birch, or more likely (b) the basswood, called "bois blanc" in other contexts.[7] The basswood's white underbark was extensively used by Native Americans and French-speaking fur traders for cordage, including the sewing up of canoes and the manufacture of webbing for snowshoes. Bois Blanc is in the traditional lands of the Mackinac Bands of Chippewa and Ottawa Indians.
Bois Blanc was ceded by the local Anishinaabe (Chippewa) to the U.S. federal government with the Treaty of Greenville in 1795 by Chippewa Chief Menehwehna.[8] After extensive use as a source of kilned lime and firewood for Mackinac Island and other local frontier settlements, Bois Blanc was settled in the late 1800s as a summer resort community. The Bois Blanc Light lighthouse (1867) survives on the northern shore of the island; it is no longer in service as a lighthouse and is not open to the public.
According to the U.S. Census Bureau, the township has a total area of 48.72sqmi, of which 35.11sqmi is land and 13.61sqmi (27.94%) is water.
The township is located on the eastern end of the Straits of Mackinac directly north of the city of Cheboyan. It is politically and geographically part of the state's Upper Peninsula. While the rest of the Upper Peninsula uses the area code 906, Bois Blanc Township is the only municipality in the Upper Peninsula that uses the area code 231.[9] Bois Blanc Township is one of only seven municipalities in the state of Michigan to consist entirely of islands, including Grosse Ile Township, Drummond Township, St. James Township, Mackinac Island, Peaine Township, and Sugar Island Township.
The township should not be confused with another Bois Blanc Island, which is a Canadian island in the Detroit River much further to the south. That island is also nicknamed "Boblo."
As of the census of 2000, there were 71 people, 42 households, and 17 families residing in the township. The population density was 2sp=usNaNsp=us. There were 420 housing units at an average density of 11.9sp=usNaNsp=us. The racial makeup of the township was 100.00% White. However, about 2,000 people visit the island. Only about 71 people stay year-round. By the 2020 census, its population grew to 100.
In 2000, there were 42 households, out of which 7.1% had children under the age of 18 living with them, 35.7% were married couples living together, 2.4% had a female householder with no husband present, and 59.5% were non-families. 47.6% of all households were made up of individuals, and 11.9% had someone living alone who was 65 years of age or older. The average household size was 1.69 and the average family size was 2.41.
In the township the population was spread out, with 7.0% under the age of 18, 2.8% from 18 to 24, 11.3% from 25 to 44, 56.3% from 45 to 64, and 22.5% who were 65 years of age or older. The median age was 57 years. For every 100 females, there were 102.9 males. For every 100 females age 18 and over, there were 106.3 males.
In 2000, the median income for a household in the township was $40,833, and the median income for a family was $46,250. Males had a median income of $23,750 versus $0 for females. The per capita income for the township was $27,131. There were no families and 3.8% of the population living below the poverty line, including no under eighteens and 14.3% of those over 64. The 2021 estimates determined its median household income grew to $69,167.[11]
The sparsely populated township contains no paved roads. A maintained county road extends from the island's northeast corner to the far western tip. There are numerous unmaintained roads and trails. Commercial access to the island is provided by ferry connections with Cheboygan through a dock at Pointe aux Pins. The township is also served by a paved airstrip, Bois Blanc Island Airport, in the interior of the island with facilities for private planes.