Australia
- Fairfield, suburb of Sydney, New South Wales
- City of Fairfield, Local Government Area of New South Wales
- Fairfield, suburb of Brisbane, Queensland
- Fairfield, suburb of Melbourne, Victoria
UK
- Fairfield, district of Liverpool
- Fairfield, village of the civil parish of Belbroughton, Worcestershire
- Fairfield, village of Lake District in Cumbria
United States of America
- Fairfield, a city in Jefferson County, Alabama
- Fairfield, capital of the County of Solano, California
- Fairfield, a town in Fairfield County, Connecticut
- Fairfield, unincorporated area of Billings County, North Dakota
- Fairfield, capital of Camas County, Idaho
- Fairfield, the county seat of Wayne County, Illinois
- Fairfield, county seat of Jefferson County, Iowa
- Fairfield, a city in Nelson County, Kentucky
- Fairfield, a city in Somerset County, Maine
- Fairfield, Lenawee County Township, Michigan
- Fairfield, township of Shiawassee County, Michigan
- Fairfield, a town in Teton County, Montana
- Fairfield, a town in Clay County, Nebraska
- Fairfield, Cumberland County township, New Jersey
- Fairfield, township of Essex County, New Jersey
- Fairfield, a city in Herkimer County, New York
- Fairfield, town in Butler County, Ohio
- Fairfield, census-designated place in Adair County, Oklahoma
- Fairfield, Adams County Borough, Pennsylvania
- Fairfield, a township in Crawford County, Pennsylvania
- Fairfield, township of Lycoming County, Pennsylvania
- Fairfield, township of Westmoreland County, Pennsylvania
- Fairfield, the county seat of Freestone County, Texas
- Fairfield, a city in Utah County, Utah
- Fairfield, a city in Franklin County, Vermont
- Fairfield, a city in Spokane County, Washington
- Fairfield, a city in Sauk County, Wisconsin