United States ZIP Code Areas (three-digit)

Title: U.S. Three-Digit ZIP Code Areas

Abstract: U.S. Three-Digit ZIP Code Areas represents the first three digits of a ZIP Code. The first digit of a five-digit ZIP Code divides the country into 10 large groups of states numbered from 0 in the Northeast to nine in the far West. Within these areas, each state is divided into an average of 10 smaller geographical areas, identified by the second and third digits. These digits, in conjunction with the first digit, represent a sectional center facility or a mail processing facility area. These areas are serviced by the U.S. Post Office Sectional Center Facilities (SCF). A single SCF often services multiple three-digit areas.

Scale range: Largest scale when displaying the data: 1:100,000

Data location: ESRI Data and Maps \usa\census\zip3.sdc

Attributes: ZIP3, STATE, SUMBLKPOP, POP2010, POP10_SQMI, SQMI

Theme keywords: polygon, zip codes, areas, three-digit zip codes, sectional center facility, population

Place keywords: United States