List Of Social Security Code Number With All Locations

Below is a list of all the area numbers for assigned social security numbers. The area number is the first three digits of the number. It generally depends on the recipient’s state of residence when the number was issued. There are some exceptions, however, such as a set of numbers which were assigned to railroad employees prior to the 1970s.

Historical Structure:

List Of Social Security Code Number With All Locations
List Of Social Security Code Number With All Locations

The area number, the first three digits, is assigned by geographical region. Prior to 1973, cards were issued in local Social Security offices around the country and the area number represented the office code where the card was issued. This did not necessarily have to be in the area where the applicant lived, since a person could apply for their card in any Social Security office. Since 1973, when SSA began assigning SSNs and issuing cards centrally from Baltimore, the area number assigned has been based on the ZIP code in the mailing address provided on the application for the original Social Security card. The applicant’s mailing address does not have to be the same as their place of residence. Thus, the Area Number does not necessarily represent the State of residence of the applicant regardless of whether the card was issued prior to, or after, 1973. Wikipedia has a list of Social Security Area Numbers for each State.

Generally, numbers were assigned beginning in the northeast and moving south and westward, so that people on the east coast had the lowest numbers and those on the west coast had the highest numbers. As the areas assigned to a locality are exhausted, new areas from the pool are assigned, so some states have noncontiguous groups of numbers.

The middle two digits are the group number. The group numbers range from 01 to 99. However, they are not assigned in consecutive order. For administrative reasons, group numbers are issued in the following order:

  • Odd numbers from 01 through 09.
  • Even numbers from 10 through 98.
  • Even numbers from 02 through 08.
  • Odd numbers from 11 through 99.
  • As an example, group number 98 is issued before 11.

The last four digits are serial numbers. They represent a straight numerical sequence of digits from 0001 to 9999 within the group.

List Of Social Security Number With All Locations:

SSN Area Number Location
001-003 New Hampshire
004-007 Maine
008-009 Vermont
010-034 Massachusetts
035-039 Rhode Island
040-049 Connecticut
050-134 New York
135-158 New Jersey
159-211 Pennsylvania
212-220 Maryland
221-222 Delaware
223-231 Virginia
232 North Carolina
232-236 West Virginia
237-246 Not Issued
247-251 South Carolina
252-260 Georgia
261-267 Florida
268-302 Ohio
303-317 Indiana
318-361 Illinois
362-386 Michigan
387-399 Wisconsin
400-407 Kentucky
408-415 Tennessee
416-424 Alabama
425-428 Mississippi
429-432 Arkansas
433-439 Louisiana
440-448 Oklahoma
449-467 Texas
468-477 Minnesota
478-485 Iowa
486-500 Missouri
501-502 North Dakota
503-504 South Dakota
505-508 Nebraska
509-515 Kansas
516-517 Montana
518-519 Idaho
520 Wyoming
521-524 Colorado
525,585 New Mexico
526-527 Arizona
528-529 Utah
530,680 Nevada
531-539 Washington
540-544 Oregon
545-573 California
574 Alaska
575-576 Hawaii
577-579 District of Columbia
580 Virgin Islands
580-584 Puerto Rico
586 Guam
586 American Samoa
586 Philippine Islands
587-665 Not Issued
667-679 Not Issued
681-690 Not Issued
691-699 Not Issued
700-728 Railroad Board**
729-733 Enumeration at Entry
750-772 Not Issued


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