Cheap or free way to find zip codes in a specified area?

is there a way to easily locate all zip codes in an area other than a circle (radius search)? I want to be able to just select an area on the map and have a list of zip codes?Cheap or free way to find zip codes in a specified area?
I don't know that a free way exists, but there are definitely cheap programs to be obtained from places such as Office Depot, Staples, etc. The programs contain maps but allow you to designate the radius in which you want to search.
Google is your friend!

Go to google and type the address including City and State the the word Zip Code and search for that.



Or you can go to United States Post Office (USPS) website and they have a zipCode look up thingy.

here:

http://zip4.usps.com/zip4/welcome.jsp



From theier main page is the 1st option on the red bar up top:

http://www..usps.comCheap or free way to find zip codes in a specified area?
http://www.google.com/search?q=+zip+code鈥?/a>Cheap or free way to find zip codes in a specified area?
www.411.com

blackheads