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What is the +4 on my ZIP Code?
The 9-digit ZIP Code consists of two sections. The first five digits indicate the destination post office or delivery area. The last 4 digits represent specific delivery routes within delivery areas. ZIP plus 4 codes assist the USPS in effectively sorting and distributing mail.
Are ZIP codes assigned by county?
ZIP Codes are not drawn according to state boundaries. In fact, since they are designed only to increase mailing efficiency, ZIP Codes can and do cross county and state boundaries.
What format are US zip codes?
United States ZIP codes are five numerical digits long. ZIP+4 codes, also known as add-on or plus-four codes, include four additional digits that identify a geographic segment within a ZIP code delivery area. The first digit in a ZIP code represents a defined group of U.S. states.
Is postal code the same as zip code?
The two codes are essentially the same in their purpose, but the term Zip code is mainly used in the USA; Postal Code is commonly used in other countries.
What do the first 3 digits of a Zip code mean?
U.S. ZIP Code Areas (Three-Digit) represents the first three digits of a ZIP Code. These digits, in conjunction with the first digit, represent a sectional center facility or a mail processing facility area.
Is 00000 a ZIP Code?
The 00000 zip code is described in state data as home to people who listed themselves as residents of Clearwater,Feather Sound,Baker County,Miramar Beach,Tierra Verde,Jackson County,St. That’s why zip code totals can occasionally drop.
Where can I find a shapefile for GIS?
A shapefile is a geospatial data format for use in geographic information system (GIS) software. For KML versions of these files, please see our Cartographic Boundary Files – KML page. For state-based and national congressional district cartographic boundary files for the 103rd through 110th Congresses, see our FTP site.
Is the USPS ZIP code the official zip code?
Data users should not use ZCTAs to identify the official USPS ZIP Code for mail delivery. The USPS makes periodic changes to ZIP Codes to support more efficient mail delivery. The Census Bureau uses tabulation blocks as the basis for defining each ZCTA.
What kind of data format is a shapefile?
A shapefile is a geospatial data format for use in geographic information system (GIS) software. For KML versions of these files, please see our Cartographic Boundary Files – KML page.
What are ZIP code tabulation areas ( ZCTAs )?
ZIP Code Tabulation Areas (ZCTAs) are approximate area representations of U.S. Postal Service (USPS) ZIP Code service areas that the Census Bureau creates to present statistical data for each decennial census.