Three-Digit Zip Code

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Three-Digit Zip Code

A prefix in a zip code representing a general geographic area. An area denoted by a three-digit zip code is serviced by a single postal facility (though a post office may have more than one three-digit code assigned to it).
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The geographically proximate firms are those located in the same 3-digit zip code as firm i.
Private insurance fees for the 84 selected physician services were obtained from the PHCS 1990 national data base that, as noted, reports fees for 3-digit ZIP Code areas.
Means CostWorks Square Foot cost module provides access to 70 commercial building types that can be tailored through modifications of key parameters, extended with common additives, localized to any 3-digit ZIP code in the United States and reported with detail by building elements to reflect actual project requirements.
Nationally, there are 770 3-digit ZIP Code areas, compared with more than 3,000 counties.
Some of the most popular territories that companies use are:US States, zip codes by State, counties by State, PUMA territories, and 3-digit zip codes.