PDUSZips is a database of US towns and their zip codes. Simply select enter the code or town to get the code, state, town, longitude, latitude and population of the town. Pocket Data indexes find data fast. Data compressed to conserve space. Uses 1.8Mb disk space for the program and data. Compatible with ALL Pocket PCs only. Installs (executable and all data) to main memory or compact flash. Installation from your desktop PC. Contains over 29,000 entries.