Brook Park is a city in Pine County, Minnesota, United States. The population was 139 at the 2010 census.Minnesota State Highways 23 and 107 are two of the main routes in the community.GeographyAccording to the United States Census Bureau, the city has a total area of 1.01sqmi, all land.Pokegama Creek flows nearby.Demographics2010 censusAs of the census of 2010, there were 139 people, 50 households, and 39 families residing in the city. The population density was 137.6PD/sqmi. There were 60 housing units at an average density of 59.4/sqmi. The racial makeup of the city was 99.3% White and 0.7% African American.There were 50 households of which 42.0% had children under the age of 18 living with them, 42.0% were married couples living together, 16.0% had a female householder with no husband present, 20.0% had a male householder with no wife present, and 22.0% were non-families. 18.0% of all households were made up of individuals and 4% had someone living alone who was 65 years of age or older. The average household size was 2.78 and the average family size was 3.05.The median age in the city was 35.1 years. 25.9% of residents were under the age of 18; 11.6% were between the ages of 18 and 24; 20.2% were from 25 to 44; 29.5% were from 45 to 64; and 12.9% were 65 years of age or older. The gender makeup of the city was 48.9% male and 51.1% female.