Brimfield (formerly Charleston) is a village in Peoria County, Illinois, United States.

Brimfield is part of the Peoria, Illinois Metropolitan Statistical Area.

[3] As of the census[5] of 2000, there were 933 people, 362 households, and 245 families residing in the village.

There were 369 housing units at an average density of 489.9 per square mile (189.2/km2).

27.1% of all households were made up of individuals, and 11.9% had someone living alone who was 65 years of age or older.