1. Ariyan.in
  2. What is the zip code of Cairo, OH, 45820

Cairo (OH) Zip Code is 45820 Latest Details Jul, 2025

Updated: 08-07-2025

Cairo (OH) zip Code is 45820, Postal Code details. Cairo is located in state OH, United States.

Find Zip Code 45820 Details

ZIP code 45820 is located in Cairo OH in the United States.

Postal Code United States Zip Code 45820 Latest update Cairo, OH
Zip Code / Postal Code 45820

City

Cairo

State Code

OH

County

Allen, United States

Postal Locations

Cairo, OH - Zip Code is - 45820

Postal

United States Postal Service USPS Link

Delivery Type

Package Delivery and first class mail.

The zip code 45820 is an essential part of the postal system in Cairo, 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, Cairo has a lot to offer.

FAQ about Zip Code 45820, Cairo, (OH)

What is Zip code Cairo?

Cairo Zip Code: 45820, used by the Cairo Post Office and USPS, is a Zone Improvement Plan code that ensures faster, accurate mail delivery in Allen, OH. Represented by the American Postal Workers Union (APWU), USPS oversees postal operations.

What is Postal code of area Cairo?

Cairo Postal Code is: 45820

Related Links