- Land Area: 573 square miles
- Population (2019): 7144
- County Seat: Fairbury
- Towns and Population (2019): Daykin, 186; Diller, 281; Endicott, 161; Fairbury, 3686; Gladstone, Unincorporated; Harbine, 79; Jansen, 106; Plymouth, 452; Reynolds, 63; Steele City, 76.
- Public School Districts: Fairbury Public Schools, Fairbury; Meridian Public Schools, Daykin; Tri County Public School, DeWitt; Diller-Odell, Diller
- Private Schools: St. Paul's Lutheran Elementary School, Plymouth.