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Global Sourcebook for International Data Management
by Graham Rhind
For supplementary information, see links to post office home pages here , to postal code pages here and to other personal name and addressing issues pages here .
An explanation of how these states and territories relate to each other, and the meaning of (un)incorporated and (un)organized here
334 914 895 (2023 estimate) [1]
1,234.45
(where . indicates the decimal separator and , the thousands separator)
A dialect and pronunciation map and resources for the USA
The official language is English (210 000 000 first-language speakers). There are 175 other indigenous languages (including Indian languages) and large numbers of imported languages. The state of New Mexico is officially bilingual English and Spanish , and there are large Spanish-speaking minorities in certain areas of the United States. There are a total of 22 400 000 Spanish-speakers. Addresses may be found written in Spanish, especially in states along the Mexican border and in Florida. There are an estimated 1 000 000 speakers of Cajun French and Louisiana Creole French in Southern Louisiana. About half the population of the state of Hawaii speak Hawai’i Creole English , about 150 000 of whom do not also speak standard English. There are some 650 000 Vlach Romani-speakers.
Different languages are spoken in the United States Territories which are included in the United States’ Postal Service coverage - please see the chapters on each of these for the relevant information.
Americans usually use the terminology first name(s) to refer to a person’s given name(s) and last name to refer to family name. The middle name has more prominence than in other cultures and it often written (usually as an initial). Names (mainly of males) may be followed by a seniority indicator such as Senior, Junior, I, II, III.
Tables of names can be acquired: given names , surnames/family names , family name prefixes , forms of address , job titles
Note: This section last updated 12th January 2016
Common American company types include:
Company (Co.) Co-operative (Co-op.) Corporation (Corp.) Incorporated (Inc.) Limited (Ltd) Limited Company (LC or Ltd Co.) LLC (Limited Liability Company) LLLP (Limited Liability Limited Partnership) LLP (Limited Liability Partnership) LP (Limited Partnership) NA (National Association) NL (No Liability) Partnership PC (Professional corporation) PLLC (Professional Limited Liability Company) PLLP (Professional Limited Liability Partnership) PSC (Personal Service Corporation) Sole Proprietorship Unlimited
Comprehensive tables of these strings can be acquired – see http:www.grcdi.nl/addresses.htm
Note: This section last updated 25th November 2014
The USPS (United States’ Postal Service) have strict guidelines on address format. Following these guidelines requires upper casing and abbreviation of address elements which will enable you to take advantage of mailing discounts but will result in highly unattractive address layouts.
The address should contain
The address is formatted as follows:
NAME NUMBER[ ]THOROUGHFARE{[ ]SUB-BUILDING INDICATOR} CITY[ ]STATE ABBREVIATION[ ]POSTAL CODE
For example, the address:
is written as preferred by the USPS:
The use of the official abbreviations is dependent upon context. Thus:
123 EAST STREET
may not be abbreviated to
123 E ST
as ‘E STREET’ is also a common street name.
There should be two spaces between the state abbreviation and the postal code.
The abbreviation “RR” indicates “Rural Route” (ruta rural in Spanish) and is formatted in address lines as, for example:
RR 5 BOX 12 A
The hash (#) symbol is used to indicate a floor or apartment number following the street name, and is used where the sub-building indicator is not used or is unknown. If the sub-building type is known and used (e.g. APT or UNIT) the hash symbol should not be used. The sub-building information may also be written on its own on a line above the thoroughfare information as follows:
When both a street address and a post office box number are used in the same address block, the mail will be delivered to the point to which the postal code refers.
Many American users do not follow these strict format requirements, writing addresses in mixed case, with different (or no) abbreviatiations, and very often with a comma following the postal town name in this way:
Minneapolis, MN 23976-4542
The United States mail system includes a number of Pacific and Caribbean Island dependencies. When mail is addressed to one of these, the island name may be included in the address. The format then becomes:
SETTLEMENT ISLAND[ ]STATE CODE[ ]POSTAL CODE
for example
SAIPAN MARIANA ISLANDS MP 96950
The abbreviations APO (Army Post Office) and FPO (Fleet Post Office) are used for armed forces mail. They have the state code AA, AE or AP according to their geographical location. DPO is used for diplomatic mail sent via the USPS. The street address line is replaced by a Postal Service Center (PSC) number, box number, unit numbers and so on. An example address last line might read:
APO AE 09081
Foreign city of country names in armed forces mail should not be used.
For dependents residing with military personnel, a “c/o” must be used:
MS G SMITH C/O MSG H SMITH REST OF ADDRESS
Though not included in official lists from the USPS, addresses may contain Spanish thoroughfare types (see chapter on Spain for a list of these). The USPS regards them as part of the thoroughfare name rather than a thoroughfare type. However, if addressing in mixed case, be sure to write the Spanish thoroughfare types commencing with a lower-case letter.
For Puerto Rico, where addresses are written in Spanish, the most important part of the address is the Urbanization District (Urb). These may be known as extensiones, jardines, mansiones, parques, repartos orvillas. If these names are present, the word Urb is then obsolete. For example:
A table containing information about the relevant position of elements within address blocks can be acquired
This is the United States Postal Service’s official list of building indicators and abbreviations. The USPS prefers that the abbreviation, in upper case, is used in addresses.
Full String | Required Abbreviation |
APARTMENT | APT |
BASEMENT | BSMT |
BUILDING | BLDG |
DEPARTMENT | DEPT |
FLOOR | FL |
FRONT | FRNT |
HANGAR | HNGR |
LOBBY | LBBY |
LOT | LOT |
LOWER | LOWR |
OFFICE | OFC |
PENTHOUSE | PH |
PIER | PIER |
REAR | REAR |
ROOM | RM |
SIDE | SIDE |
SLIP | SLIP |
SPACE | SPC |
STOP | STOP |
SUITE | STE |
TRAILER | TRLR |
UNIT | UNIT |
UPPER | UPPR |
Comprehensive tables of these strings can be acquired – see http:www.grcdi.nl/addresses.htm
This is the United States Postal Service’s official list of thoroughfare types and abbreviations. The USPS prefers that the abbreviation, in upper case, is used in addresses.
Comprehensive tables of these strings can be acquired – see http:www.grcdi.nl/addresses.htm
This is known as PO Box or Apartado in Spanish. The initials PMB are used to indicate a private mail box.
Known as the ZIP Code (Zone Improvement Program code), this can contain a block of 5 digits or, for more accurate delivery, 9 digits in this format:
99999[-]9999
This is known as ZIP + 4. Though many companies use the ZIP code as a locational indicator (for example, when assigning local state taxes for mail-ordered items), there are a small number of communities on state borders which have the same ZIP code as a neighbouring community in another state. There is currently legislation in the American senate to give these communities their own ZIP codes.
The first three digits of the postal code indicate the routing zone or processing and delivery centre. The next two indicate the post office or delivery section. The first two digits of the code after the hyphen indicate a sector, the final two a segment.
Metadata containing postal code formatting rules, exceptions and regular expressions can be acquired
\A([0-8]\d{4,4}|[0-8]\d{4,4}(-)\d{4,4}|(90|91|92|93|94|95|97|98|99)\d{3,3}|(90|91|92|93|94|95|97|98|99)\d{3,3}(-)\d{4,4}|(960|961|962|963|964|965|966|967|968)\d{2,2}|(960|961|962|963|964|965|966|967|968)\d{2,2}(-)\d{4,4}|(9690|9691|9692|9693|9695|9698|9699)\d{1,1}|(9690|9691|9692|9693|9695|9698|9699)\d{1,1}(-)\d{4,4}|(96945|96946|96947|96948|96949)|(96945|96946|96947|96948|96949)(-)\d{4,4})\Z
Note: This section last updated 21st December 2015
Refer to Exonyms in United States of America for full lists of place names in the United States of America in other languages.
Place names are fixed by the United States Board on Geographic Names. The board does not acknowledge the use of diacritic marks in place names and in almost all cases drops the possessive apostrophe from place names such as Lions Den and Elmers Brook. There are four exceptions:
Martha’s Vineyard, Massachusetts Ike’s Point, New Jersey John E’s Pond, New Jersey (note that this does not take a full stop) Carlos Elmer’s Joshua View, Arizona
Alternate place name forms/postal code tables can be acquired at http://www.grcdi.nl/settlements.htm
Other language place name data can be acquired at http://www.grcdi.nl/otherlanguageplace.htm
The United States consists of 50 states and 1 district (shown in the list below with an asterisk). The state code must be used in addresses between the settlement name and the postal code. State codes for mailing purposes have also been assigned to dependent and other overseas territories and ex-territories. The full list of codes is:
State | Abbreviation | Zip code range* |
Alabama | AL | 35000-36999 |
Alaska | AK | 99500-99999 |
American Samoa | AS (an unincorporated territory) | 96799 |
Arizona | AZ | 85000-86999 |
Arkansas | AR | 71600-72999 |
California | CA | 90000-96699 |
Colorado | CO | 80000-81999 |
Connecticut | CT | 06000-06999 |
Delaware | DE | 19700-19999 |
District of Columbia * | DC | 20000-20599 |
Federated States of Micronesia | FM (became independent of the USA in 1979 - see below) | 96941-96944 |
Florida | FL | 32000-34999 |
Georgia | GA | 30000-31999 |
Guam | GU (an unincorporated territory) | 96910-96931 |
Hawaii | HI | 96700-96999 |
Idaho | ID | 83200-83999 |
Illinois | IL | 60000-62999 |
Indiana | IN | 46000-47999 |
Iowa | IA | 50000-52999 |
Kansas | KS | 66000-67999 |
Kentucky | KY | 40000-42999 |
Louisiana | LA | 70000-71599 |
Maine | ME | 03900-04999 |
Marshall Islands | MH (became independent of the USA in 1986 - see below) | 96960, 96970 |
Maryland | MD | 20600-21999 |
Massachusetts | MA | 01000-02799 |
Michigan | MI | 48000-49999 |
Minnesota | MN | 55000-56999 |
Mississippi | MS | 38600-39999 |
Missouri | MO | 63000-65999 |
Montana | MT | 59000-59999 |
Nebraska | NE | 68000-69999 |
Nevada | NV | 88900-89999 |
New Hampshire | NH | 03000-03899 |
New Jersey | NJ | 07000-08999 |
New Mexico | NM | 87000-88899 |
New York | NY | 10000-14999 |
North Carolina | NC | 27000-28999 |
North Dakota | ND | 58000-58999 |
Northern Mariana Islands | MP (commonwealth territory) | 96950-96952 |
Ohio | OH | 43000-45999 |
Oklahoma | OK | 73000-74999 |
Oregon | OR | 97000-97999 |
Palau | PW (became independent of the USA in 1994 - see below) | 96940 |
Pennsylvania | PA | 15000-19699 |
Puerto Rico | PR (commonwealth territory) | 00600-00799; 00901-00999 |
Rhode Island (more correctly: Rhode Island and Providence Plantations) | RI | 02800-02999 |
South Carolina | SC | 29000-29999 |
South Dakota | SD | 57000-57999 |
Tennessee | TN | 37000-38599 |
Texas | TX | 75000-79999 |
Utah | UT | 84000-84999 |
Vermont | VT | 05000-05999 |
Virgin Islands | VI (an unincorporated territory) | 00801-00851 |
Virginia | VA | 22000-24699 |
Washington | WA | 98000-99499 |
West Virginia | WV | 24700-26999 |
Wisconsin | WI | 53000-54999 |
Wyoming | WY | 82000-83199 |
* NB: some border settlements share Zip codes with the neighbouring state.
This regions/postal code data can be acquired as a data file
Military “State” | Abbreviation |
Armed Forces Africa | AE |
Armed Forces Americas (not Canada) | AA |
Armed Forces Canada | AE |
Armed Forces Europe | AE |
Armed Forces Middle East | AE |
Armed Forces Pacific | AP |
The Pacific island states of Federated States of Micronesia, the Marshall Islands and Palau are all independent of the USA but are part of its postal system. They can be identified by their postal codes:
Federated States of Micronesia (FM) 96941-4 Marshall Islands (MH) 96960 and 96970 Palau(PW) 96940
Please see the relevant chapters on these countries.
All area codes (from abroad) have a length of 3 digits. Numbers are written in the format:
[1-]999[-]999[-]9999
Numbers 2, 3 and 4 are the “area code”, numbers 5, 6 and 7 are the exchange number the final four numbers are the “body”. The final 7 digits together make up the subscriber’s number.
Mobile number area codes are 500 and 533.
Every effort is made to keep this resource updated. If you find any errors, or have any questions or requests, please don't hesitate to contact the author.
All information copyright Graham Rhind 2024. Any information used should be acknowledged and referenced.