Brookfield is a city in Linn County, Missouri, United States. The population was 4,542 at the 2010 census. Brookfield was surveyed in 1859 by John Wood Brooks, a native of Boston. John Wood Brooks is further remembered by the names of four Brookfield streets: John, Wood, Brooks, and Boston streets. A post office called Brookfield has been in operation since 1860.Brookfield is located at 39°46′59″N 93°4′26″W (39.783155, -93.073871). According to the United States Census Bureau, the city has a total area of 4.29 square miles (11.11 km2), of which 4.27 square miles (11.06 km2) is land and 0.02 square miles (0.05 km2) is water.
As of the census of 2010, there were 4,542 people, 1,892 households, and 1,146 families living in the city. The population density was 1,063.7 inhabitants per square mile (410.7/km2). There were 2,280 housing units at an average density of 534.0 per square mile (206.2/km2). The racial makeup of the city was 95.4% White, 1.3% African American, 0.3% Native American, 0.3% Asian, 0.6% from other races, and 2.1% from two or more races. Hispanic or Latino of any race were 2.0% of the population. There were 1,892 households, of which 30.8% had children under the age of 18 living with them, 43.3% were married couples living together, 12.5% had a female householder with no husband present, 4.7% had a male householder with no wife present, and 39.4% were non-families.
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