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Iowa — United States

Welcome to the postal codes directory for Iowa, United States. As a prominent region in United States, Iowa contains 26 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.

26 Total Cities Indexed
IOWA Region Code
🔍 Showing 26 cities

Available Cities

26
Aurora Bellevue Birmingham Buffalo Burlington Cedar Rapids Charlotte Cincinnati Columbia Dallas Davenport Denver Des Moines Greenville Hartford Henderson Knoxville Lansing Lincoln Little Rock Manchester Nashua Oakland Rockford Rutland Salem

Frequently Asked Questions

Regional Divisions & Cities
Iowa encompasses diverse geographical zones and municipal areas. This platform indexes 26 major cities in Iowa, linking each city to its postal codes, neighborhoods, and regional phone area codes.
State-Level Telecom Infrastructure
Under the NANP system, Iowa 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 Iowa?
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.