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Zip Code 45014 — Fairfield, OH

45014 is a ZIP Code associated with Fairfield, OH, located within Butler. The postal region supports an estimated population of 45,773 residents across Data Pending housing units, with a population density of 782.3 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (39.328220, -84.552100)

Data Metric	Local Statistic
Postal / Zip Code	45014
Primary City	Fairfield
State / Province	OH
County	Butler
Total Population	45,773
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	782.3 people/sq mi
Timezone	America/New_York

How 45014 Compares

Metric	ZIP 45014	Butler County	OH State Average
Population	45,773	389,474	11,810,293
Median Income	Data Pending	N/A	N/A
Population Density	782.3 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 45015	Hamilton	2.5 mi	11,038	N/A
Zip 45240	Cincinnati	3.3 mi	29,600	N/A
Zip 45218	Cincinnati	4.6 mi	3,836	N/A
Zip 45251	Cincinnati	4.7 mi	20,254	N/A
Zip 45246	Cincinnati	5.3 mi	13,527	N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →