There is one unique ZIP code in Fairfield, Texas and it is 75840. Area code: 903/430.
1
ZIP codes
267.50
sq mi land
4.43
sq mi water
903/430
area code
Fairfield, TX ZIP code map
About Fairfield, TX
Fairfield, Texas is a charming small city nestled in the heart of East Texas, serving as the county seat of Freestone County. Located along U.S. Highway 84 and Interstate 45, Fairfield offers residents and visitors a welcoming blend of Southern hospitality, deep-rooted history, and a peaceful rural lifestyle. With a single ZIP code of 75840, this tight-knit community stands as one of the defining cities of the Freestone County region.
Location & geography
Fairfield sits in Freestone County in East Central Texas, positioned roughly midway between Dallas and Houston along the Interstate 45 corridor, making it accessible to both major metropolitan areas. Nearby cities include Corsicana to the northwest, Palestine to the southeast, Buffalo to the south, and Teague to the east, each within a reasonable drive along the area's network of state and federal highways. The city's total area encompasses 267.50 square miles of land and 4.43 square miles of water, with the surrounding terrain featuring the rolling pine and hardwood forests, gentle creek bottoms, and lake systems characteristic of East Central Texas.
Community & economy
Fairfield carries the spirit of a classic Texas county seat, with its historic downtown courthouse square serving as a gathering point for local commerce, government, and community events. The local economy draws from agriculture, ranching, and small business, while the nearby Fairfield Lake State Park provides outdoor recreation opportunities that attract both residents and visitors from across the region. Daily life in Fairfield revolves around strong community ties, local schools, churches, and the seasonal rhythms of rural East Texas living.
Transportation
Fairfield is well-connected by road, sitting at the intersection of Interstate 45 and U.S. Highway 84, providing direct access north toward Dallas and south toward Houston, as well as east-west travel across Central Texas. State Highway 179 and other farm-to-market roads branch out from the city, linking surrounding rural communities to Fairfield's commercial core. The nearest commercial airports for Fairfield residents are Dallas/Fort Worth International Airport and Houston's George Bush Intercontinental Airport, both roughly two hours away, while smaller regional facilities such as the Palestine Municipal Airport offer closer general aviation options.
History
Fairfield was established in the mid-19th century and incorporated as the county seat of Freestone County, a role it has held throughout its history, anchoring the region's civic and judicial life. The area's economy was historically rooted in cotton farming, timber, and later oil and gas production, industries that shaped the landscape and character of Freestone County for generations. Freestone County's name itself is a nod to the freestone peaches and the distinctive local geology, reflecting the agricultural heritage that defined this part of Texas.
Did you know?
Fairfield Lake State Park, located just outside the city, is a beloved destination offering fishing, camping, and wildlife observation on a reservoir created by a power plant, making it a unique recreational landmark in the region. Fairfield's position as the geographic midpoint between Dallas and Houston along Interstate 45 gives it a strategic significance that has quietly shaped its growth and visitor traffic over the decades.
