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About MapsZipCode Service

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This FREE zip code finder and mapping service provides great ways of finding and mapping zip code-based locations. You can use our US map to drill down to the city and get a zip code list in that city. You can type in your location if you want to take a short cut. If you want to get the distance between two zip codes or display a list of all the zip codes in the proximity of the particular zip code, you can use our Proximity calculation tools. Future plans are to allow the visitor to download zip code list in multiple formats based on their search so that they can use it in other applications.

General Zip Code information

Zip code, also known as Zone Improvement Plan is a system of numbers devised by the United States Postal Service to ensure your mail moves more efficitnetly. The basic zip code format is composed of five numerical digits. An extended zipcode which is composed of the five digits, a hyphen and then four more numberical digits. The extended zip code ensures that your mail is routed to an exact location.

Zipcodes are numbered with the first digit representing a certain area within the United States. The second and third digits together represent a region or a large city. The fourth and fifth digits of the zipcode represent a group of delivery addresses within that region.

Zipcodes do not necessarily fall within the boundries of the city; thus a zip code may be found within two bounding cities. When doing lookups, do not assume that because the zip code is found in one city that it is unique to that city alone. If the United States zip code is not accepted by the United States Postal Service a delay may result in your mail delivery.

Keep in mind that zip codes are sometimes changed and divided, especially when a rural area becomes suburban. Generally the new zip codes become effective once announced and a grace period mostly of one year is provided in which the new and old zip codes are used concurrently so that postal customers in the affected area can notify others, order new stationery, etc.

Zip Code demographic and housing information

The site provides zip code demographic information from the US Census Bureau (specifically, The American Community Survey) for those who are interested in zip code research beyond mapping. The information covered provides an insight into the zip code areas covering such demographic components as zipcode population, race, family structure, family type by presence of related children, household language, education and family income amongst other things. We also provide housing and real estate related information such us housing occupied, vacancy for rent, vacancy for sale, household units, and population by household unit.

MapsZipCode is meant to provide a snapshot view of the zip code. It is not meant for any serious research. Use the US Census web site for the most up-to-date data.