US United States Major Regions Postal Code Details
🏛️ Polk · Iowa
50009Adventureland Estates
Adventureland Estates polk iowa 50009 United States
50007Alleman
Alleman polk iowa 50007 United States
50391Allied Group
Allied Group polk iowa 50391 United States
50009Altoona
Altoona polk iowa 50009 United States
50334American Republic
American Republic polk iowa 50334 United States
50021Ankeny
Ankeny polk iowa 50021 United States
50310Beaverdale
Beaverdale polk iowa 50310 United States
50032Berwick
Berwick polk iowa 50032 United States
50035Bondurant
Bondurant polk iowa 50035 United States
50131Camp Dodge
Camp Dodge polk iowa 50131 United States
50317Capital Heights
Capital Heights polk iowa 50317 United States
50317Carbondale
Carbondale polk iowa 50317 United States
50364Citigroup
Citigroup polk iowa 50364 United States
50369Citigroup Brm
Citigroup Brm polk iowa 50369 United States
50323Clive
Clive polk iowa 50323 United States
50340Communications Data Service
Communications Data Service polk iowa 50340 United States
50226Crocker
Crocker polk iowa 50226 United States
50314Des Moines
Des Moines polk iowa 50314 United States
50073Elkhart
Elkhart polk iowa 50073 United States
50073Enterprise
Enterprise polk iowa 50073 United States
50339Equitable Life Assurance
Equitable Life Assurance polk iowa 50339 United States
50396First Interstate Bank
First Interstate Bank polk iowa 50396 United States
50111Grimes
Grimes polk iowa 50111 United States
50111Herrold
Herrold polk iowa 50111 United States
50313Highland Park
Highland Park polk iowa 50313 United States
50982HP Enterprise Services
HP Enterprise Services polk iowa 50982 United States
50381Hp Other
Hp Other polk iowa 50381 United States
50936HP-Proactive
HP-Proactive polk iowa 50936 United States
50981HP-SC/YE
HP-SC/YE polk iowa 50981 United States
50009Ivy
Ivy polk iowa 50009 United States
50131Johnston
Johnston polk iowa 50131 United States
50313Marquisville
Marquisville polk iowa 50313 United States
50398Marsh Inc
Marsh Inc polk iowa 50398 United States
50335Midamerican Energy
Midamerican Energy polk iowa 50335 United States
50169Mitchellville
Mitchellville polk iowa 50169 United States
50317Norwoodville
Norwoodville polk iowa 50317 United States
50327Pleasant Hill
Pleasant Hill polk iowa 50327 United States
50226Polk City
Polk City polk iowa 50226 United States
50392Principal Financial
Principal Financial polk iowa 50392 United States
50317Risingsun
Risingsun polk iowa 50317 United States
50237Runnells
Runnells polk iowa 50237 United States
50169Santiago
Santiago polk iowa 50169 United States
50313Saydel
Saydel polk iowa 50313 United States
50313Saylorville
Saylorville polk iowa 50313 United States
50243Sheldahl
Sheldahl polk iowa 50243 United States
50315South Des Moines
South Des Moines polk iowa 50315 United States
50319State Of Iowa
State Of Iowa polk iowa 50319 United States
50322Urbandale
Urbandale polk iowa 50322 United States
50395USPS BMC
USPS BMC polk iowa 50395 United States
50330Visa Mastercard
Visa Mastercard polk iowa 50330 United States
50331Wells Fargo Mortgage
Wells Fargo Mortgage polk iowa 50331 United States
50265West Des Moines
West Des Moines polk iowa 50265 United States
50073White Oak
White Oak polk iowa 50073 United States
50324Windsor Heights
Windsor Heights polk iowa 50324 United States
📋 United States Address and Delivery Guidance
📮
Use a Complete Delivery Address:
Include the recipient name, building or street address, locality, region where applicable, postal code when the destination uses one, and the destination country or territory.
🌍
Follow Local Address Conventions:
Use the language, character set and address order requested by the recipient, official postal operator or carrier. Do not assume every destination uses the same postal-code format.
✅
Verify Before Dispatch:
Confirm the postal code, service coverage and any customs or carrier requirements with the recipient and the relevant official postal operator before shipping.
💡
Delivery Information Is Context-Specific:
Postal codes help routing only in territories that use them. Accurate recipient details remain essential for delivery in every destination.
Postal information, sources and verification
Use this page as a routing reference and confirm the complete address, postal code format and delivery restrictions with the relevant official postal operator or carrier before dispatch.
Editorial and service accountability
This postal-code reference is maintained by the 56ok.com logistics-content team for international shipping preparation. It is reviewed against publicly available postal-operator information; it is not an official postal authority and does not replace carrier or customs instructions.
This reference is maintained as postal and carrier information changes. Need a correction? Contact our team.
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📮United States Postal FAQ and delivery guidance
📮 What is the format of a US ZIP code?
Standard format is 5 digits (e.g., 10001). Extended format is ZIP+4 (9 digits like 10001-1234) with a hyphen.
🔍 How to find the ZIP code for an address?
Use the USPS ZIP Code Lookup tool by entering the full address on the official USPS website.
⚠️ What happens if I use a wrong ZIP code?
Mail may be delayed, returned, or lost. For important documents, use USPS tracking and verify the ZIP code.
🔄 Do ZIP codes ever change?
Yes, USPS may update ZIP codes due to regional adjustments. Always confirm your ZIP code after an address change.
📦 Is a ZIP code required for international mail to the US?
Absolutely. Always include the US ZIP code at the end of the address (e.g., New York, NY 10001 USA).
