| Official Name: | Fairfield, Wisconsin |
| Pushpin Map: | Wisconsin#USA |
| Subdivision Type: | Country |
| Subdivision Name: |  United States |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Walworth |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 915 |
| Coordinates: | 42.6331°N -88.7764°W |
| Postal Code Type: | ZIP code |
| Area Code: | 262 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 1564806 |
Fairfield is an unincorporated community located in the towns of Bradford in Rock County and Darien in Walworth County, Wisconsin, United States.
The earliest reference to Fairfield is a description from John W. Hunt's 1853 Wisconsin Gazetteer: "FAIRFIELD, P. O., (Maxson's Mtill), in town of Bradford, county of Rock, on section 13, town 2 N., of range 15 E. It is 11 miles southeast from county seat, and 50 miles east of south from Madison. Population 100, 12 dwellings, 2 stores, 1 grist mill, and Presbyterian and Baptist denominations. It is on Turtle Creek, 16 miles from Beloit, and on the county line between Rock and Walworth, 9 miles from the state line. The first settler was Joseph Maxson."
Fairfield also has a cemetery, Fairfield/Pioneer Cemetery, located on east side of County Highway C, Sec 1. It is an active cemetery with 72 burials.[1]