1 - ZIP Code Lookup - USPS - 
Find the ZIP code for a given address, search by city or company, or find all cities in a ZIP code. From the U.S. Postal Service.
http://zip4.usps.com/zip4/welcome.jsp -

2 - USPS - ZIP Code Lookup - Search By City - 
USPS Home | FAQs. ZIP Code Lookup. Find a ZIP Code in a city. * Required Fields * City ... Access online tools to verify addresses, calculate postage, and more. ...
http://zip4.usps.com/zip4/citytown.jsp -

3 - ZIP Code - Wikipedia - 
Encyclopedia article about the history and uses of the United States postal codes. Also includes lists of zip codes by state and postal codes by country.
http://en.wikipedia.org/wiki/Zip_code -

4 - Zip-Code-Database.Org - 
Find ZIP codes and postal information for all 50 U.S. States. Includes ZIP code search by city and by area code.
http://www.zip-code-database.org/ -

5 - United States Postal Service - ZIP + 4 Lookup - 
when a ZIP Code is given. This version will continue to be supported for a limited time. ... on our City/State/ZIP Code Associations page. ...
http://www.usps.com/ncsc/lookups/lookup_zip+4.html -

6 - USPS - The United States Postal Service (U.S. Postal Service) - 
Official site of the U.S. Postal Service (U.S.P.S.), featuring postage rate calculator, Express Mail tracking, ZIP codes, post office locations, change of address ...
http://www.usps.com/ -

7 - Zip-Codes.com - 
Offers zip code maps and downloadable databases.
http://www.zip-codes.com/ -

8 - ZIP Code: Definition from Answers.com - 
Zip Code A trademark used for a system designed to expedite the sorting and delivery of mail by assigning a series of numbers to each delivery area in
http://www.answers.com/topic/zip-code -

9 - ZIP and Area Code Search @ Address.com - 
... ZIP codes and area codes in your city or state. Maps of area codes are ... ZIP ... Area and ZIP/Postal Code Search | Contact Us | Address Search by City ...
http://www.address.com/zip-area-code -

10 - ZIP Code Finder - 
Free zip code finder. Lookup ZIP codes by city, address, state, county, or area code and get all the zip codes. ... ZIP Code Database - Facts & Stats ...
http://www.zip-codes.com/search.asp -