In which county is ZIP code 45018 located?

ZIP 45018 is listed under Butler, OH.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 45018: Fairfield, OH

ZIP: 45018

County: Butler

Coordinates: 39.44100, -84.57570

ZIP Type: Standard

Time Zone: Eastern Time (ET)

This profile provides an in-depth look at ZIP code 45018, serving Fairfield in OH. It lies in Butler and supports delivery, planning, and address verification.

Primary City	Fairfield
ZIP Code	45018
County	Butler
State	OH
Latitude / Longitude	39.44100, -84.57570
ZIP Type	Standard
Time Zone	Eastern Time (ET)
Data Updated	2026-01-08

Maps & Useful Links

Open in Maps: Google Maps · OpenStreetMap

These links show the approximate center point for ZIP 45018 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 45018 are listed as 39.44100 / -84.57570, useful for GPS and service checks in and around Fairfield, OH.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 45018 for mail delivery and general location reference in Butler, OH.

Some addresses near Fairfield may share this ZIP due to delivery routing and local service areas.

Related ZIP Codes (Nearby)

Explore other postal codes near Fairfield within OH.

Frequently Asked Questions

What is the primary city for ZIP code 45018?

The primary city for this ZIP code is Fairfield, located in OH.

In which county is 45018 located?

ZIP code 45018 is situated within Butler, OH.

What are the coordinates for 45018?

The approximate center point is 39.44100 (Latitude) and -84.57570 (Longitude).

Is ZIP code 45018 active?

This page lists ZIP 45018 as Listed based on the latest refresh date shown above.

Does ZIP 45018 cover multiple areas?

Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.

Methodology & Data Notes

How we build this page: We generate this page from a structured ZIP dataset and refresh key fields (city, county, and coordinates) during scheduled updates. Coordinates represent an approximate center point, not an official boundary map.
Sources: Public ZIP reference datasets and geographic coordinate references. If you use specific sources (e.g., USPS, Census), list them on your About/Methodology page.

Page updated: 2026-01-08