There are 2 unique ZIP codes in Fairfield, Ohio. Area code: 513.
2
ZIP codes
22.59
sq mi land
0.33
sq mi water
513
area code
Fairfield, OH ZIP code map
About Fairfield, OH
Fairfield, Ohio is a vibrant city located in Butler County in the southwestern corner of the state, offering residents and visitors a welcoming blend of suburban comfort and civic pride. Served by a single ZIP code — 45014 — the city is well-connected to the greater Cincinnati metropolitan area and enjoys a strong sense of community identity. With its mix of established neighborhoods, growing commercial corridors, and easy access to regional amenities, Fairfield continues to be one of Butler County's most recognizable and livable communities.
Location & geography
Fairfield is situated in southwestern Ohio, positioned between the larger cities of Cincinnati to the south and Hamilton to the north, placing it at the heart of the Great Miami River Valley. The city covers a total land area of 67.77 square miles, complemented by approximately 1.00 square mile of water area, which includes portions of the Great Miami River that help define the region's natural landscape. Neighboring communities include Hamilton, Middletown, West Chester, and Cincinnati, all of which are within a short drive and contribute to the interconnected economic and cultural fabric of Butler County.
Community & economy
Fairfield has a well-rounded community character, balancing blue-collar manufacturing heritage with a growing base of retail, healthcare, and service-sector employment that reflects modern suburban Ohio. Residents enjoy access to a range of parks, public schools, and local dining and shopping options along major commercial corridors such as Dixie Highway and Pleasant Avenue. Daily life in Fairfield is shaped by its strong neighborhood associations, active parks and recreation department, and a calendar of community events that bring together longtime residents and newer arrivals alike.
Transportation
Fairfield benefits from strong highway connectivity, with Interstate 275 and U.S. Route 127 providing direct access to the broader regional road network, while Dixie Highway serves as a central commercial and transit artery running through the heart of the city. The Cincinnati/Northern Kentucky International Airport, located roughly 25 to 30 miles to the south, is the primary commercial airport serving Fairfield residents for domestic and international travel. Public transit options connect Fairfield to surrounding Butler County communities and the Cincinnati metro area, making commuting accessible for those who prefer alternatives to driving.
History
Fairfield's roots stretch back to the early nineteenth century when settlers were drawn to the fertile lands of the Great Miami River Valley in what would become Butler County, Ohio. The area developed steadily as an agricultural and later an industrial community, benefiting from its location between Hamilton and Cincinnati along key regional trade routes. Over the decades, Fairfield grew from a modest township into an incorporated city, expanding its boundaries and infrastructure to accommodate the residential and commercial growth that defined much of southwestern Ohio's postwar suburban boom.
Did you know?
One notable aspect of Fairfield is that despite being a mid-sized city, it encompasses a remarkably large land area of 67.77 square miles, giving it a geographic footprint that rivals or exceeds many larger Ohio cities. This expansive size means Fairfield contains a surprisingly diverse mix of dense suburban neighborhoods, open green spaces, and commercial districts all within a single ZIP code — 45014 — served by the 513 area code.
