Find the last 4 digits (ZIP+4) for an address in 45321

ZIP 45321, Eldorado, OH is filled in. Just type the street address.

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ZIP Code 45321 – Eldorado, OH

Eldorado, Ohio · Preble County · Eastern time

ZIP code45321
CityEldorado
StateOhio
CountyPreble County
Population1,272
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area14.12 sq mi
Center (lat, long)39.8653, -84.6870

Area codes in this area

326937

These are the area codes that most often serve ZIP 45321 (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

45347 New Paris · 4.3 mi45382 West Manchester · 4.7 mi45338 Lewisburg · 7.6 mi45320 Eaton · 7.9 mi45346 New Madison · 8.2 mi45332 Hollansburg · 10.4 mi45378 Verona · 10.9 mi47374 Richmond · 11 mi

About ZIP 45321

ZIP code 45321 is assigned to Eldorado, Ohio. It lies in Preble County. Its Census area covers about 14.12 square miles of land. The closest neighboring ZIP is 45347 (New Paris), about 4.3 miles away.

Every address in 45321 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