Zip code definitions

Limited statistics are summarized for individual five-digit ZIP Codes in manufacturing, retail trade, and several of the service sectors. These statistics are generally limited to a count of the establishments in each industry or kind of business, further classified by size.

In addition, statistics on employment, payrolls, and sales or receipts are presented for nonmanufacturing businesses by sector businesses within a ZIP Code, not by individual kind of business. ZIP Codes generally do not coincide with the Census Bureau's geographic or political areas, and they change according to postal requirements. Most ZIP Codes do not have specific boundaries, and their implied boundaries do not necessarily follow clearly identifiable physical features. At the time of the Economic Censuses, there were about 40, ZIP Codes, although several thousand had no business activity and are not included in files.

The census of mineral industries presents some statistics on petroleum and natural gas industries for selected offshore areas as well as by State. Data are summarized by region only for construction industries.

There are four regions--Northeast, Midwest, South, and West. Each of the four census regions is divided into two or more census divisions. Prior to , the Midwest region was named the North Central region. Regions nonstandard The Current Industrial Report series presents selected statistics for other nonstandard regions--for example, "brick industry regions" and "lumber industry regions" in appropriate reports.

MRC's and CBD's were large concentrations of retail stores within metropolitan areas, reported in the census of retail trade from to This series of reports was discontinued because of the high cost of defining the areas. Locate a Post Office anywhere in the United States.

Counties Counties and their equivalents, 3, in all, are the primary political and administrative divisions of States. Places Incorporated Places -- The Economic Census provides information for legally defined, incorporated municipalities cities, towns, villages, and boroughs with 2, or more inhabitants as of the population census. The territory outside MA's is referred to as "nonmetropolitan. Office of Management and Budget. Metropolitan statistical areas have at least one urbanized area of 50, or more population, plus adjacent territory that has a high degree of social and economic integration with the core as measured by commuting ties.

Micropolitan statistical areas are a new set of statistical areas that have at least one urban cluster of at least 10, but less than 50, population, plus adjacent territory that has a high degree of social and economic integration with the core as measured by commuting ties.

The commercial regions are groups of municipios that collectively cover Puerto Rico. They are used in the reports for retail trade and service industries in lieu of MSA's, but are not used in other sectors.

Virgin Islands: The territory as a whole; the islands of St. Thomas and St. John combined, and St. Special-Purpose Areas Offshore Areas The census of mineral industries presents some statistics on petroleum and natural gas industries for selected offshore areas as well as by State.

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