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In page Birch Lake Township, Cass County, Minnesota:

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There were 259 households out of which 17.0% had children under the age of 18 living with them, 69.9% were married couples living together, 2.3% had a female householder with no husband present, and 27.4% were non-families. 24.7% of all households were made up of individuals and 7.7% had someone living alone who was 65 years of age or older. The average household size was 2.21 and the average family size was 2.61.