Eagle Lake Township, Otter Tail County, Minnesota  Eagle Lake Township is a township in Otter Tail County, Minnesota, United States. The population was 367 at the 2000 census. Eagle Lake Township was organized in 1870, and named for the largest lake within its borders. According to the United States Census Bureau, the township has a total area of , of which of it is land and of it (11.55%) is water. At the 2000 census there were 367 people in 152 households, including 112 families, in the township. The population density was 11.5 people per square mile (4.4/km²). There were 348 housing units at an average density of 10.9/sq mi (4.2/km²). The racial makeup of the township was 99.73% White, and 0.27% from two or more races. Hispanic or Latino of any race were 0.27%. 53.8% were of Norwegian, 20.1% German and 10.8% Swedish ancestry according to Census 2000. Of the 152 households 28.3% had children under the age of 18 living with them, 67.8% were married couples living together, 4.6% had a female householder with no husband present, and 26.3% were non-families. 25.0% of households were one person and 8.6% were one person aged 65 or older. The average household size was 2.41 and the average family size was 2.88. The age distribution was 25.9% under the age of 18, 3.5% from 18 to 24, 20.2% from 25 to 44, 33.0% from 45 to 64, and 17.4% 65 or older. The median age was 45 years. For every 100 females, there were 107.3 males. For every 100 females age 18 and over, there were 103.0 males. The median household income was $31,875 and the median family income was $39,583. Males had a median income of $26,750 versus $20,833 for females. The per capita income for the township was $15,792. About 12.6% of families and 12.4% of the population were below the poverty line, including 11.6% of those under age 18 and 29.1% of those age 65 or over.