You can look up a ZIP code for free using the lookup tool on UnitedStatesZipCodes.org. The website offers information including a ZIP code’s place name, county, time zone, Google Maps view and demographic data. To look up a given ZIP code, enter the code in the Search by ZIP Code input field in the upper right part of the page. The website receives its data from sources that include the U.S. Census Bureau, UPS and the United States Postal Service.
UnitedStatesZipCodes.org provides ZIP code demographic data such as housing, ethnicity, age and gender. Housing data includes breakdowns of the housing type, occupancy type, reasons for vacancies and number of children per household. Age data consists of breakdowns of the total population, heads of household and children by age. The website also presents a summary of the data for a given ZIP code and a brief comparison of particular data points with national averages.
In addition to a free ZIP code lookup tool, UnitedStatesZipCodes.org offers printable ZIP code maps, a shipping cost calculator and a downloadable ZIP code database. Its shipping cost calculator provides UPS, USPS and FedEx rates for a given package and lets you choose between envelopes, letters, and small to large boxes for your estimate. The website also allows you to look up ZIP code and area information based on an address, city or county.