Find the last 4 digits (ZIP+4) for an address in 45342

ZIP 45342, Miamisburg, OH is filled in. Just type the street address.

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ZIP Code 45342 – Miamisburg, OH

Miamisburg, Ohio · Montgomery County · Eastern time

ZIP code45342
CityMiamisburg
StateOhio
CountyMontgomery CountyWarren County
Population36,152
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area34.31 sq mi
Center (lat, long)39.6293, -84.2760

Area codes in this area

380614

These are the area codes that most often serve ZIP 45342 (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

45449 Dayton · 3.1 mi45439 Dayton · 5.4 mi45459 Dayton · 5.9 mi45066 Springboro · 6.4 mi45458 Dayton · 6.6 mi45327 Germantown · 6.8 mi45005 Franklin · 7 mi45429 Dayton · 7.1 mi

About ZIP 45342

ZIP code 45342 is assigned to Miamisburg, Ohio. It crosses 2 counties; most of its land is in Montgomery County. Its Census area covers about 34.31 square miles of land. The closest neighboring ZIP is 45449 (Dayton), about 3.1 miles away.

Every address in 45342 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