| Official Name: | Leslie Township, Michigan |
| Settlement Type: | Civil township |
| Pushpin Map: | Michigan#USA |
| Pushpin Label Position: | left |
| Pushpin Label: | Leslie 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: | Ingham |
| Leader Title: | Supervisor |
| Leader Name: | Dallas Henney |
| Leader Title1: | Clerk |
| Leader Name1: | Sheryl Feazel |
| Established Title: | Established |
| Established Date: | 1836 |
| Unit Pref: | Imperial |
| Area Total Km2: | 90.78 |
| Area Land Km2: | 90.39 |
| Area Water Km2: | 0.39 |
| Area Total Sq Mi: | 35.05 |
| Area Land Sq Mi: | 34.90 |
| Area Water Sq Mi: | 0.15 |
| Population As Of: | 2020 |
| Population Total: | 2305 |
| Population Density Sq Mi: | auto |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation M: | 289 |
| Elevation Ft: | 948 |
| Coordinates: | 42.4658°N -84.4231°W |
| Postal Code Type: | ZIP code(s) |
| Postal Code: | 48854 (Mason) 49251 (Leslie) |
| Area Code: | 517 |
| Blank Name: | FIPS code |
| Blank Info: | 26-47200[1] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1626611 |
Leslie Township is a civil township of Ingham County in the U.S. state of Michigan. The population was 2,305 at the 2020 census.[2] The township completely surrounds the city of Leslie, but the two are administered autonomously.
According to the United States Census Bureau, the township has a total area of 35.05sqmi, of which 34.9sqmi is land and 0.15sqmi (0.43%) is water.[3]
Sycamore Creek has its headwaters in the township.[4]
As of the census of 2000, there were 2,327 people, 855 households, and 670 families residing in the township. The population density was 66.5sp=usNaNsp=us. There were 879 housing units at an average density of 25.1sp=usNaNsp=us. The racial makeup of the township was 97.29% White, 0.39% African American, 0.17% Native American, 0.09% Asian, 1.03% from other races, and 1.03% from two or more races. Hispanic or Latino people of any race were 1.72% of the population.
There were 855 households, out of which 33.0% had children under the age of 18 living with them, 69.0% were married couples living together, 5.6% had a female householder with no husband present, and 21.6% were non-families. 16.0% of all households were made up of individuals, and 6.2% had someone living alone who was 65 years of age or older. The average household size was 2.72 and the average family size was 3.03.
In the township the population was spread out, with 25.3% under the age of 18, 6.6% from 18 to 24, 30.9% from 25 to 44, 27.4% from 45 to 64, and 9.8% who were 65 years of age or older. The median age was 38 years. For every 100 females, there were 98.9 males. For every 100 females age 18 and over, there were 98.9 males.
The median income for a household in the township was $55,476, and the median income for a family was $58,789. Males had a median income of $43,068 versus $28,510 for females. The per capita income for the township was $23,179. About 4.4% of families and 6.7% of the population were below the poverty line, including 6.1% of those under age 18 and 5.4% of those age 65 or over.