ZIPList5 TM (March 2023 data)
5-digit ZIP code ASCII cross-reference database with city, state, area code, county name, county FIPS code, and ZIP code type information for the entire USA!
This database file lists every active ZIP code currently defined by the US Postal Service for the entire USA. It includes both preferred and approved ("alias") city names, county names, county FIPS codes, ZIP code types, and most prevalent telephone area codes, including recent area code changes. You can easily incorporate this data into your own applications to look up the city and state based on ZIP code.
The City Name field identifies a city name associated with the ZIP code by the USPS. There may be several different city names associated with a particular ZIP code. If so, the ZIP code will appear in several different records, each with a different city name.
The ZIP code field lists only valid 5-digit ZIP codes currently defined by the USPS. Obsolete ZIP codes which have been "retired" from service by the USPS are not included in this database. A particular ZIP code may appear in more than one record if the USPS has defined more than one city name for that ZIP code.
The area code is the "most prevalent" area code for that one ZIP code. If multiple area codes apply to that one ZIP code, only the primary area code is listed. Overlay area codes are not listed.
The County FIPS code is a 5-digit numeric field containing a unique numeric identification assigned to each county by the US government. The County FIPS code field and the County Name field identify the "most prevalent" county for the 5-digit ZIP code listed in a given record.
The Preferred? flag can have one of three states, which indicate how that name can be used for delivery of mail to the associated ZIP code. The three states are:
The one preferred name record has the preferred field set to "P", while all alias name records have the preferred field set to "A" or "N". Note that in some cases a particular name may be preferred for some ZIP codes but an alias name for other ZIP codes. This frequently occurs when the exact political boundary between adjacent cities is obscure, leading people to use the two city names interchangeably within the boundary area.
The ZIP Code type field identifies special ZIP codes used for PO Boxes, companies, or the military.
Click here to download sample records in comma-delimited ASCII (CSV) format.
Click here to download sample records in comma-delimited ASCII (CSV) format, compressed with WinZip.
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