Find the last 4 digits (ZIP+4) for an address in 45123

ZIP 45123, Greenfield, OH is filled in. Just type the street address.

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ZIP Code 45123 – Greenfield, OH

Greenfield, Ohio · Highland County · Eastern time

ZIP code45123
CityGreenfield
StateOhio
CountyHighland CountyRoss CountyFayette County
Population8,740
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area106.76 sq mi
Center (lat, long)39.3488, -83.3888

Area codes in this area

283513

These are the area codes that most often serve ZIP 45123 (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

45681 South Salem · 7.8 mi45135 Leesburg · 8.2 mi45628 Frankfort · 10.8 mi45132 Highland · 11.2 mi45612 Bainbridge · 11.4 mi45624 Cynthiana · 12.3 mi43160 Washington Court House · 12.7 mi45617 Bourneville · 13.3 mi

About ZIP 45123

ZIP code 45123 is assigned to Greenfield, Ohio. It crosses 3 counties; most of its land is in Highland County. Its Census area covers about 106.76 square miles of land. The closest neighboring ZIP is 45681 (South Salem), about 7.8 miles away.

Every address in 45123 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