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Current List of ClassFP Codes


ClassFP CodeClass Code DescriptionAssociated Geographic Entity
C1An active incorporated place that does not serve as a county subdivision equivalentEconomic Census Place, Incorporated Place
C2An active incorporated place that is legally coextensive with a county subdivision but treated as independent of any county subdivisionCounty Subdivision, Economic Census Place, Incorporated Place
C3Consolidated CityConsolidated City
C4Alternate official common name for an incorporated placeLocality Point
C5An active incorporated place that is independent of any county subdivision and serves as a county subdivision equivalentCounty Subdivision, Economic Census Place, Incorporated Place
C6An active incorporated place that partially is independent of any county subdivision and serves as a county subdivision equivalent or partially coextensive with a county subdivision but treated as independent of any county subdivisionIncorporated Place
C7An incorporated place that is independent of any countyCounty or Equivalent Feature, County Subdivision, Economic Census Place, Incorporated Place
C8The balance of a consolidated city excluding the separately incorporated place(s) within that consolidated governmentEconomic Census Place, Incorporated Place
C9An inactive or nonfunctioning incorporated placeEconomic Census Place, Incorporated Place
M1A military or other defense installation that is not entirely within a census designated placeLocality Point, Military Installation
M2A military or other defense installation entirely within a placeCensus Designated Place, Economic Census Place, Military Installation
U1A census designated place with an official federally recognized nameCensus Designated Place, Economic Census Place
U2A census designated place without an official federally recognized nameCensus Designated Place, Economic Census Place


CityType Code Definitions


Code

Description

NNon Postal Community Name: Former Postal Facility 
PPost Office: Official post office branch.
UUrbanization: Specific to Puerto Rico.
BBranch: A postal facility that is not the main post office and is outside the corporate limits of a city.
CCommunity Post Office: a contract postal unit providing mail services to small communities.
SStation: A post office that is not the main office for a city but is in corporate city limits.
ZPO Box: Linked to a set of PO Boxes.
XMilitary: Linked to an APO/FPO Military base.


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