|
Investigative
Resource
Guide
to Social Security Numbers
ssn
and social security numbers
| 000- |
00- |
0000 |
| Area
Number |
Group
Number |
Serial
Number |
Area
Number
The first three digits are known as the area number. Prior to
1972, cards were issued in local Social Security offices around the
country and the Area Number represented the State in which the card was
issued. This did not necessarily have to be the State where the
applicant lived, since a person could apply for their card in any Social
Security office.
Since 1972, when SSA began assigning social securing numbers 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. The
applicant's mailing address does not have to be the same place as their
residence. Thus, the Area Number does not necessarily represent the
State of residence of the applicant, either prior to 1972 or since.
Generally, numbers were assigned beginning in the northeast and moving
westward, so the people on the east coast could have the lowest numbers
and those on the west coast would have the highest numbers.
Group
Number
The middle two digits are the group number. They have no special
geographic or data significance but merely serve to break the number into
conveniently sized blocks for orderly issuance.
Within each area, the group numbers (middle two digits)
range from 01 to 99 but are not assigned in consecutive order. For
administrative reasons, group numbers issued first consist of the ODD
numbers from 01 through 09 and then EVEN numbers from 10 through 98,
within each area number allocated to a State. After all numbers in group
98 of a particular area have been issued, the EVEN Groups 02 through 08
are used, followed by ODD Groups 11 through 99. These numbers do not
really provide any clues for genealogy purposes.
Serial
Number
The last four digits are serial numbers. They represent a straight
numerical sequence of digits from 0001-9999 within the group. These
also have no bearing on genealogy research.
SOCIAL
SECURITY NUMBER STATE CODES
|
001-003
|
New
Hampshire (NH)
|
|
004-007
|
Maine
(ME)
|
|
008-009
|
Vermont
(VT)
|
|
010-034
|
Massachusetts
(MA)
|
|
035-039
|
Rhode
Island (RI)
|
|
040-049
|
Connecticut
(CT)
|
|
050-134
|
New
York (NY)
|
|
135-148
|
New
Jersey (NJ)
|
|
159-211
|
Pennsylvania
(PA)
|
|
212-220
|
Maryland
(MD)
|
|
223-231
|
Virginia
(VA)
|
|
232*
|
West
Virginia (WV) North Carolina (NC)
|
|
233-236
|
West
Virginia (WV)
|
|
237-246
|
North
Carolina (NC)
|
|
247-251
|
South
Carolina (SC)
|
|
252-260
|
Georgia
(GA)
|
|
261-267
|
Florida
(FL)
|
|
268-302
|
Ohio
(OH)
|
|
303-317
|
Indiana
(IN)
|
|
318-361
|
Illinois
(IL)
|
|
362-386
|
Michigan
(MI)
|
|
387-399
|
Wisconsin
(WI)
|
|
400-407
|
Kentucky
(KY)
|
|
408-415
|
Tennessee
(TN)
|
|
416-424
|
Alabama
(AL)
|
|
425-428
|
Mississippi
(MS)
|
|
429-432
|
Arkansas
(AR)
|
|
433-439
|
Louisiana
(LA)
|
|
440-448
|
Oklahoma
(OK)
|
|
449-467
|
Texas
(TX)
|
|
468-477
|
Minnesota
(MN)
|
|
478-485
|
Iowa
(IA)
|
|
486-500
|
Missouri
(MO)
|
|
501-502
|
North
Dakota (ND)
|
|
503-504
|
South
Dakota (SD)
|
|
505-508
|
Nebraska
(NB)
|
|
509-515
|
Kansas
(KS)
|
|
516-517
|
Montana
(MT)
|
|
518-519
|
Idaho
(ID)
|
|
520
|
Wyoming
(WY)
|
|
521-524
|
Colorado
(CO)
|
|
525
|
New
Mexico (NM)
|
|
526-527
|
Arizona
(AZ)
|
|
528-529
|
Utah
(UT)
|
|
530
|
Nevada
(NV)
|
|
531-539
|
Washington
(WA)
|
|
540-544
|
Oregon
(OR)
|
|
545-573
|
California
(CA)
|
|
574
|
Alaska
(AK)
|
|
575-576
|
Hawaii
(HI)
|
|
577-579
|
District
of Columbia (DC)
|
|
580*
|
Virgin
Islands, Puerto Rico (PR)
|
|
581-584
|
Puerto
Rico (PR)
|
|
585
|
New
Mexico (NM)
|
|
586
|
Guam,
American Somoa, Philippine Islands
|
|
587
|
Mississippi
(MS)
|
|
589-595
|
Florida
(FL)
|
|
596-599
|
Puerto
Rico (PR)
|
|
600-601
|
Arizona
(AZ)
|
|
602-626
|
California
(CA)
|
|
627-645
|
Texas
(TX)
|
|
646-647
|
Utah
(UT)
|
|
648-649
|
New
Mexico (NM)
|
|
654-658
|
South
Carolina (SC)
|
|
667-675
|
Georgia
(GA)
|
|
680
|
Nevada
(NV)
|
|
700-728
|
RR
Retirement Board (All States - until July, 1963)
|
|
764-765
|
Arizona
(AZ)
|
The
Social Security Administration has been issuing social security numbers
for many years now. This page is designed as an aid and guide to
explaining from where social security numbers originate. The SS
number is a nine-digit number that every person in the United States has
assigned to them. |
