| Official Name: | Union Township, Michigan |
| Settlement Type: | Civil township |
| Pushpin Map: | Michigan |
| Pushpin Label Position: | left |
| Pushpin Label: | Union Township |
| Pushpin Map Caption: | Location within the state of Michigan |
| Mapsize: | 250 |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Grand Traverse |
| Leader Title: | Supervisor |
| Leader Name: | Doug Mansfield |
| Established Title: | Organized |
| Established Date: | 1884 |
| Unit Pref: | Imperial |
| Area Total Km2: | 93.2 |
| Area Land Km2: | 92.8 |
| Area Water Km2: | 0.4 |
| Area Total Sq Mi: | 36.0 |
| Area Land Sq Mi: | 35.8 |
| Area Water Sq Mi: | 0.2 |
| Population As Of: | 2020 |
| Population Total: | 514 |
| Population Density Km2: | 5.5 |
| Population Density Sq Mi: | 14.3 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation M: | 271 |
| Elevation Ft: | 889 |
| Coordinates: | 44.6442°N -85.3897°W |
| Postal Code Type: | ZIP code(s) |
| Postal Code: | 49633 (Fife Lake) 49649 (Kingsley) 49680 (South Boardman) 49696 (Traverse City) |
| Area Code: | 231 |
| Blank Name: | FIPS code |
| Blank Info: | 26-81320[1] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1627185 |
Union Township is a civil township of Grand Traverse County in the U.S. state of Michigan. The population was 514 at the 2020 Census, making it the least populous township in the county. Much of Union Township is protected by the Traverse City Management Unit of the Pere Marquette State Forest.
Union Township was organized in October 1884.[2]
According to the United States Census Bureau, the township has a total area of 36.0 square miles (93.2 km), of which 35.8 square miles (92.8 km) is land and 0.2 square mile (0.4 km) (0.47%) is water. The township is located in the east of Grand Traverse County, sharing a boundary with Kalkaska County.
The primary source of the Boardman River, the confluence of the river's north and south branches, is located in Union Township.
Union Township contains no state trunkline highways. However, US Highway 131 comes within 600feet of the township's southeastern corner.
As of the census of 2000, there were 417 people, 157 households, and 116 families residing in the township. The population density was 11.6 per square mile (4.5/km). There were 222 housing units at an average density of 6.2 per square mile (2.4/km). The racial makeup of the township was 97.60% White, 1.20% Native American, and 1.20% from two or more races. Hispanic or Latino of any race were 0.72% of the population.
There were 157 households, out of which 34.4% had children under the age of 18 living with them, 66.2% were married couples living together, 5.1% had a female householder with no husband present, and 25.5% were non-families. 20.4% of all households were made up of individuals, and 2.5% had someone living alone who was 65 years of age or older. The average household size was 2.62 and the average family size was 3.04.
In the township the population was spread out, with 26.1% under the age of 18, 6.0% from 18 to 24, 30.7% from 25 to 44, 31.2% from 45 to 64, and 6.0% who were 65 years of age or older. The median age was 38 years. For every 100 females, there were 124.2 males. For every 100 females age 18 and over, there were 118.4 males.
The median income for a household in the township was $51,250, and the median income for a family was $51,964. Males had a median income of $38,958 versus $26,750 for females. The per capita income for the township was $19,016. About 9.5% of families and 11.0% of the population were below the poverty line, including 9.2% of those under age 18 and none of those age 65 or over.