Find the last 4 digits (ZIP+4) for an address in 45018

ZIP 45018, Fairfield, OH is filled in. Just type the street address.

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ZIP Code 45018 – Fairfield, OH

Fairfield, Ohio · Butler County · Eastern time

ZIP code45018
CityFairfield
StateOhio
CountyButler County
PopulationNot published (no Census ZIP area)
Time zoneEastern · local time
ZIP typePO box or unique ZIP (no Census area)
Center (lat, long)39.4410, -84.5757

Area codes in this area

283513

These are the area codes that most often serve ZIP 45018 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Map

Nearby ZIP codes

45012 Hamilton · 0 mi45062 Seven Mile · 3.1 mi45055 Overpeck · 3.6 mi45011 Hamilton · 4.3 mi45013 Hamilton · 4.5 mi45015 Hamilton · 4.7 mi45004 Collinsville · 5.4 mi45067 Trenton · 6.3 mi

About ZIP 45018

ZIP code 45018 is assigned to Fairfield, Ohio. It lies in Butler County. It is a PO-box-only or single-address ZIP, so the Census Bureau does not publish an area for it; the location shown is approximate. The closest neighboring ZIP is 45012 (Hamilton), about 0 miles away.

Every address in 45018 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources