| Official Name: | Star Lake Township, Minnesota |
| Settlement Type: | Township |
| Pushpin Map: | Minnesota#USA |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Location within the state of Minnesota |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Minnesota |
| Subdivision Type2: | County |
| Subdivision Name2: | Otter Tail |
| Unit Pref: | Imperial |
| Area Total Km2: | 92.6 |
| Area Land Km2: | 64.8 |
| Area Water Km2: | 27.8 |
| Area Total Sq Mi: | 35.8 |
| Area Land Sq Mi: | 25.0 |
| Area Water Sq Mi: | 10.7 |
| Population As Of: | 2000 |
| Population Total: | 410 |
| Population Density Km2: | 6.3 |
| Population Density Sq Mi: | 16.4 |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation M: | 406 |
| Elevation Ft: | 1332 |
| Coordinates: | 46.5044°N -95.8339°W |
| Blank Name: | FIPS code |
| Blank Info: | 27-62554[1] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 0665701[2] |
Star Lake Township is a township in Otter Tail County, Minnesota, United States. The population was 410 at the 2000 census.
Star Lake Township was organized in 1880.[3]
According to the United States Census Bureau, the township has a total area of 35.8 square miles (92.6 km), of which 25.0 square miles (64.8 km) is land and 10.8 square miles (27.8 km) (30.05%) is water.
At the 2000 census there were 410 people, 168 households, and 117 families in the township. The population density was 16.4 people per square mile (6.3/km). There were 483 housing units at an average density of 19.3/sq mi (7.5/km). The racial makeup of the township was 99.76% White, and 0.24% from two or more races. Hispanic or Latino of any race were 0.24%.
Of the 168 households 25.6% had children under the age of 18 living with them, 62.5% were married couples living together, 4.2% had a female householder with no husband present, and 29.8% were non-families. 28.6% of households were one person and 7.1% were one person aged 65 or older. The average household size was 2.44 and the average family size was 2.96.
The age distribution was 24.1% under the age of 18, 5.1% from 18 to 24, 23.7% from 25 to 44, 33.7% from 45 to 64, and 13.4% 65 or older. The median age was 43 years. For every 100 females, there were 121.6 males. For every 100 females age 18 and over, there were 123.7 males.
The median household income was $29,500 and the median family income was $31,875. Males had a median income of $23,750 versus $20,682 for females. The per capita income for the township was $20,736. About 7.7% of families and 9.0% of the population were below the poverty line, including 3.2% of those under age 18 and 10.1% of those age 65 or over.