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  2. What is the zip code of Fairfield, OH, 45011

Fairfield (OH) Zip Code is 45011 Latest Details Jul, 2025

Updated: 07-07-2025

Fairfield (OH) zip Code is 45011, Postal Code details. Fairfield is located in state OH, United States.

Find Zip Code 45011 Details

ZIP code 45011 is located in Fairfield OH in the United States.

Postal Code United States Zip Code 45011 Latest update Fairfield, OH
Zip Code / Postal Code 45011

City

Fairfield

State Code

OH

County

Butler, United States

Postal Locations

Fairfield, OH - Zip Code is - 45011

Postal

United States Postal Service USPS Link

Delivery Type

Package Delivery and first class mail.

The zip code 45011 is an essential part of the postal system in Fairfield, OH. Located in a vibrant part of the city, this zip code covers a variety of neighborhoods, offering residents and businesses a unique blend of suburban comfort and urban convenience. Whether you're looking to send mail, relocate, or simply learn more about the area, Fairfield has a lot to offer.

FAQ about Zip Code 45011, Fairfield, (OH)

What is Zip code Fairfield?

Fairfield Zip Code: 45011, used by the Fairfield Post Office and USPS, is a Zone Improvement Plan code that ensures faster, accurate mail delivery in Butler, OH. Represented by the American Postal Workers Union (APWU), USPS oversees postal operations.

What is Postal code of area Fairfield?

Fairfield Postal Code is: 45011

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