State · United States

Iowa Postal Codes

—934 counties

Browse by county to find postal codes in Iowa.

Understanding postal codes in Iowa

Postal code format varies by country (often 4–6 digits; some use alphanumeric).

Select a county to explore postal codes.

State · United States

—934 counties

Browse by county to find postal codes in Iowa.

Postal code format varies by country (often 4–6 digits; some use alphanumeric).

Select a county to explore postal codes.