Find the last 4 digits (ZIP+4) for an address in 45431

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ZIP Code 45431 – Dayton, OH

Dayton, Ohio · Greene County · Eastern time

ZIP code45431
CityDayton
StateOhio
CountyGreene CountyMontgomery County
Population27,951
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area11.73 sq mi
Center (lat, long)39.7638, -84.0842

Area codes in this area

326937

These are the area codes that most often serve ZIP 45431 (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

45435 Dayton · 1.6 mi45432 Dayton · 1.7 mi45430 Dayton · 3.2 mi45403 Dayton · 3.5 mi45420 Dayton · 3.9 mi45404 Dayton · 4 mi45434 Dayton · 4 mi45410 Dayton · 4.1 mi

About ZIP 45431

ZIP code 45431 is assigned to Dayton, Ohio. It crosses 2 counties; most of its land is in Greene County. Its Census area covers about 11.73 square miles of land. The closest neighboring ZIP is 45435 (Dayton), about 1.6 miles away.

Every address in 45431 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