| Official Name: | Zilwaukee Township, Michigan |
| Settlement Type: | Civil township |
| Pushpin Map: | Michigan#USA |
| Pushpin Label Position: | left |
| Pushpin Label: | Zilwaukee Township |
| Pushpin Map Caption: | Location within the state of Michigan##Location within the United States |
| Mapsize: | 250 |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Michigan |
| Subdivision Type2: | County |
| Subdivision Name2: | Saginaw |
| Leader Title: | Supervisor |
| Leader Name: | Scott Clark |
| Leader Title1: | Clerk |
| Leader Name1: | Patricia Brandt |
| Established Title: | Established |
| Established Date: | 1854 |
| Area Total Km2: | 15.50 |
| Area Land Km2: | 9.27 |
| Area Water Km2: | 6.23 |
| Area Total Sq Mi: | 5.98 |
| Area Land Sq Mi: | 3.58 |
| Area Water Sq Mi: | 2.40 |
| Population As Of: | 2020 |
| Population Total: | 62 |
| Population Density Sq Mi: | 17.3 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation M: | 176 |
| Elevation Ft: | 577 |
| Coordinates: | 43.5033°N -83.8967°W |
| Postal Code Type: | ZIP code(s) |
| Postal Code: | 48604 (Saginaw) |
| Area Code: | 989 |
| Blank Name: | FIPS code |
| Blank Info: | 26-89340[1] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1627305 |
Zilwaukee Township is a civil township of Saginaw County in the U.S. state of Michigan. The population was 62 at the 2020 census, which ranks the township the fourth-least populated municipality in the state of Michigan after Pointe Aux Barques Township, Grand Island Township, and West Branch Township.
The city of Zilwaukee is southwest of the township, but the two are administered separately. The township is home to the Crow Island State Game Area, which covers a large portion of the township's area.
According to the U.S. Census Bureau, the township has a total area of 5.98sqmi, of which 3.58sqmi is land and 2.4sqmi (40.1%) is water.[2]
The Saginaw River flows through the center of the township.
As of the census of 2000, there were 61 people, 23 households, and 18 families residing in the township. The population density was 10.6 per square mile (4.1/km2). There were 26 housing units at an average density of 4.5 per square mile (1.8/km2). The racial makeup of the township was 90.16% White, and 9.84% African American.
There were 23 households, out of which 26.1% had children under the age of 18 living with them, 73.9% were married couples living together, and 21.7% were non-families. 17.4% of all households were made up of individuals, and none had someone living alone who was 65 years of age or older. The average household size was 2.65 and the average family size was 3.06.
In the township the population was spread out, with 24.6% under the age of 18, 8.2% from 18 to 24, 16.4% from 25 to 44, 34.4% from 45 to 64, and 16.4% who were 65 years of age or older. The median age was 45 years. For every 100 females, there were 144.0 males. For every 100 females age 18 and over, there were 130.0 males.
The median income for a household in the township was $50,625, and the median income for a family was $52,188. Males had a median income of $50,938 versus $23,750 for females. The per capita income for the township was $21,268. None of the population and none of the families were below the poverty line.