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  2. What is the zip code of Eldorado, OH, 45321

Eldorado (OH) Zip Code is 45321 Latest Details Jul, 2025

Updated: 07-07-2025

Eldorado (OH) zip Code is 45321, Postal Code details. Eldorado is located in state OH, United States.

Find Zip Code 45321 Details

ZIP code 45321 is located in Eldorado OH in the United States.

Postal Code United States Zip Code 45321 Latest update Eldorado, OH
Zip Code / Postal Code 45321

City

Eldorado

State Code

OH

County

Preble, United States

Postal Locations

Eldorado, OH - Zip Code is - 45321

Postal

United States Postal Service USPS Link

Delivery Type

Package Delivery and first class mail.

The zip code 45321 is an essential part of the postal system in Eldorado, OH. Located in a vibrant part of the city, this zip code covers a variety of neighborhoods, offering residents and businesses a unique blend of suburban comfort and urban convenience. Whether you're looking to send mail, relocate, or simply learn more about the area, Eldorado has a lot to offer.

FAQ about Zip Code 45321, Eldorado, (OH)

What is Zip code Eldorado?

Eldorado Zip Code: 45321, used by the Eldorado Post Office and USPS, is a Zone Improvement Plan code that ensures faster, accurate mail delivery in Preble, OH. Represented by the American Postal Workers Union (APWU), USPS oversees postal operations.

What is Postal code of area Eldorado?

Eldorado Postal Code is: 45321

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