Brookfield is a city in Linn County, Missouri, United States.

[4] Brookfield was surveyed in 1859 by John Wood Brooks, a native of Boston.

34.5% of all households were made up of individuals, and 16.4% had someone living alone who was 65 years of age or older.

35.3% of all households were made up of individuals, and 20.7% had someone living alone who was 65 years of age or older.

[13] Every Labor Day weekend, Brookfield hosts the Great Pershing Balloon Derby.

Every fall the Brookfield Bulldogs play the Marceline Tigers in the annual Bell Game which is one of the oldest high school football rivalries in the United States.

The Bell Game rivalry received 1,761,878 votes and won a $10,000 prize divided equally between Brookfield and Marceline.

The Twin Parks Summer Festival marks the start of summer for families in and around Brookfield, with activities including craft vendors, a baby contest, games, and a concert on Main Street featuring prominent acts.