| Official Name: | Summit Township, Michigan |
| Settlement Type: | Civil township |
| Pushpin Map: | Michigan#USA |
| Pushpin Label Position: | right |
| Pushpin Label: | Summit Township |
| Mapsize: | 250 |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Michigan |
| Subdivision Type2: | County |
| Subdivision Name2: | Mason |
| Leader Title: | Supervisor |
| Leader Name: | Donald Kelly |
| Leader Title1: | Clerk |
| Leader Name1: | Mary Bedker |
| Established Title: | Organized |
| Established Date: | 1860 |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Sq Mi: | 14.29 |
| Area Land Sq Mi: | 12.80 |
| Area Water Sq Mi: | 1.49 |
| Population As Of: | 2020 |
| Population Footnotes: | [2] |
| Population Total: | 995 |
| Population Density Sq Mi: | 77.7 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation M: | 204 |
| Elevation Ft: | 669 |
| Coordinates: | 43.8478°N -86.415°W |
| Postal Code Type: | ZIP Codes |
| Postal Code: | 49431 (Ludington) 49449 (Pentwater) |
| Area Code: | 231 |
| Blank Name: | FIPS code |
| Blank Info: | 26-105-77220[3] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1627136 |
Summit Township is a civil township of Mason County in the U.S. state of Michigan. The population was 995 at the 2020 census.[2]
The township was organized in 1860.[4] Some say Summit Township was named from its lofty elevation, while others believe it was named from the optimistic spirit of its organizers.[5]
Summit Township is in southwestern Mason County, bordered to the south by Oceana County and to the west by Lake Michigan. According to the United States Census Bureau, the township has a total area of 14.29sqmi, of which 12.8sqmi are land and 1.49sqmi, or 10.43%, are water.[1] Bass Lake is in the southern part of the township, and half of a large storage reservoir for the Ludington Pumped Storage Hydroelectric Plant is in the north.
U.S. Route 31, a four-lane freeway, crosses the township from north to south, leading north to just east of Ludington, the Mason county seat, and south to Muskegon.
As of the census of 2000, there were 1,021 people, 398 households, and 308 families residing in the township. The population density was 79.4sp=usNaNsp=us. There were 790 housing units at an average density of 61.4sp=usNaNsp=us. The racial makeup of the township was 97.36% White, 0.10% African American, 0.59% Native American, 0.10% Asian, 0.10% Pacific Islander, 0.88% from other races, and 0.88% from two or more races. Hispanic or Latino of any race were 2.35% of the population.
There were 398 households, out of which 29.6% had children under the age of 18 living with them, 70.6% were married couples living together, 5.3% had a female householder with no husband present, and 22.4% were non-families. 18.6% of all households were made up of individuals, and 8.8% had someone living alone who was 65 years of age or older. The average household size was 2.56 and the average family size was 2.91.
In the township the population was spread out, with 22.7% under the age of 18, 5.4% from 18 to 24, 21.6% from 25 to 44, 29.6% from 45 to 64, and 20.7% who were 65 years of age or older. The median age was 45 years. For every 100 females, there were 105.8 males. For every 100 females age 18 and over, there were 100.8 males.
The median income for a household in the township was $44,432, and the median income for a family was $50,000. Males had a median income of $35,875 versus $23,625 for females. The per capita income for the township was $20,335. About 1.0% of families and 3.1% of the population were below the poverty line, including 0.8% of those under age 18 and 7.2% of those age 65 or over.