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Ohio — United States

Welcome to the postal codes directory for Ohio, United States. As a prominent region in United States, Ohio contains 38 major cities indexed. Our platform provides comprehensive zip codes, neighborhood directories, and simulated local phone number generation rules for developer form testing and compliance verification.

38 Total Cities Indexed
OHIO Region Code
🔍 Showing 38 cities

Available Cities

38
Aberdeen Albany Aurora Baltimore Bellevue Birmingham Bowling Green Bridgeport Buffalo Cincinnati Cleveland Columbus Dover Fayetteville Fresno Grand Rapids Greenville Hartford Houston Jackson Jacksonville Lansing Louisville Madison Manchester Nashville New Haven Newark Portland Reno Richmond Rockford Rutland Salem Savannah Springfield Syracuse Wilmington

Frequently Asked Questions

Regional Divisions & Cities
Ohio encompasses diverse geographical zones and municipal areas. This platform indexes 38 major cities in Ohio, linking each city to its postal codes, neighborhoods, and regional phone area codes.
State-Level Telecom Infrastructure
Under the NANP system, Ohio is allocated several distinct area codes covering specific counties and metropolitan districts. Select a city to explore local dialing overlays and to generate valid mock phone patterns.
How to look up the exact postal code for a specific district or street under Ohio?
You can select the corresponding city from the list above. On the city page, we provide a complete mapping table of districts, streets/neighborhoods, and their exact postal codes. You can also use the search bar at the top to instantly locate a street or neighborhood.