Brookfield is a city in Linn County, Missouri, United States. The population was 4,111 at the 2020 census.
Brookfield Civil War Monument
Linn County is a county located in the northern portion of the U.S. state of Missouri. As of the 2020 census, the population was 11,874. Its county seat is Linneus. The county was organized January 1, 1837, and named after U.S. Senator Lewis F. Linn of Missouri.
The Linn County Courthouse in Linneus