| Official Name: | Mason Township, Michigan |
| Settlement Type: | Civil township |
| Pushpin Map: | Michigan#USA |
| Pushpin Label Position: | left |
| Pushpin Label: | Mason 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: | Arenac |
| Leader Title: | Supervisor |
| Leader Name: | Mark Heideman |
| Unit Pref: | Imperial |
| Area Total Km2: | 83.1 |
| Area Land Km2: | 83.0 |
| Area Water Km2: | 0.1 |
| Population As Of: | 2020 |
| Population Total: | 750 |
| Population Density Km2: | auto |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation M: | 227 |
| Elevation Ft: | 745 |
| Coordinates: | 44.1278°N -83.8586°W |
| Postal Code Type: | ZIP code(s) |
| Postal Code: | 48766 |
| Area Code: | 989 |
| Blank Name: | FIPS code |
| Blank Info: | 26-52120[1] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1626704 |
Mason Township is a civil township of Arenac County in the U.S. state of Michigan. The population was 750 at the 2020 census.[2] The western portion of the village of Twining is located within the township.
According to the United States Census Bureau, the township has a total area of 83.1sqkm, of which 83sqkm is land and 0.1sqkm, or 0.09%, is water.[3]
As of the census of 2000, there were 994 people, 359 households, and 268 families residing in the township. The population density was 31sp=usNaNsp=us. There were 442 housing units at an average density of 13.8sp=usNaNsp=us. The racial makeup of the township was 95.57% White, 0.20% African American, 1.21% Native American, 0.10% from other races, and 2.92% from two or more races. Hispanic or Latino of any race were 1.01% of the population.
There were 359 households, out of which 38.4% had children under the age of 18 living with them, 56.3% were married couples living together, 12.5% had a female householder with no husband present, and 25.3% were non-families. 21.2% of all households were made up of individuals, and 7.5% had someone living alone who was 65 years of age or older. The average household size was 2.77 and the average family size was 3.21.
In the township the population was spread out, with 31.5% under the age of 18, 7.4% from 18 to 24, 26.3% from 25 to 44, 24.1% from 45 to 64, and 10.7% who were 65 years of age or older. The median age was 36 years. For every 100 females, there were 100.4 males. For every 100 females age 18 and over, there were 104.5 males.
The median income for a household in the township was $30,357, and the median income for a family was $33,333. Males had a median income of $29,519 versus $19,821 for females. The per capita income for the township was $12,991. About 13.3% of families and 17.0% of the population were below the poverty line, including 22.5% of those under age 18 and 4.6% of those age 65 or over.