In an over populated world like we have, with so many digit zips getting confused for another state, there is one address verification web service that we could go check with when there is someone we need to locate. Cdyne.com allows for any family like ours locate any address of our loved ones in the states and have it validated to make sure we have the right zip. The fun thing is we are able to get the latitude/longitude how coordinates for an address, even the congressional district. No one is really going to get lost with this kind of service. For me their free limited version.
Locating A Loved One