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Workers Insured for Social Security Benefits

Updated July 18, 2007

Estimated number 1 of insured workers, by insured status, on December 31, 1940-2007
[In millions]
Year Workers fully insured for retirement and/or survivor benefits Workers
insured in event
of disability
Total Permanently
insured
Not permanently
insured
1940 24.2 1.1 23.1 . . .
1941 25.8 1.4 24.4 . . .
1942 28.1 1.8 26.3 . . .
1943 29.9 2.3 27.6 . . .
1944 31.9 2.8 29.1 . . .
1945 33.4 3.4 30.0 . . .
1946 35.4 8.6 26.8 . . .
1947 37.3 11.6 25.7 . . .
1948 38.9 13.2 25.7 . . .
1949 40.1 14.9 25.2 . . .
1950 59.8 21.0 38.8 . . .
1951 62.8 22.9 39.9 . . .
1952 68.2 25.6 42.7 . . .
1953 71.0 27.7 43.4 . . .
1954 70.2 29.9 40.4 31.9
1955 70.5 32.5 38.0 35.4
1956 74.0 36.1 38.0 37.2
1957 76.1 38.3 37.9 38.4
1958 76.5 40.3 36.2 43.4
1959 76.7 42.2 34.6 46.4
1960 84.4 47.6 36.8 48.5
1961 88.5 53.3 35.3 50.5
1962 89.8 54.9 34.8 51.5
1963 91.3 56.6 34.7 52.3
1964 92.8 58.3 34.5 53.3
1965 94.8 60.2 34.6 55.0
1966 97.2 61.9 35.3 55.7
1967 99.9 63.3 36.6 56.9
1968 102.6 64.5 38.1 70.1
1969 106.4 66.7 39.7 72.4
1970 109.1 67.9 41.2 74.5
1971 111.6 69.1 42.5 76.1
1972 114.2 70.4 43.8 77.8
1973 117.5 71.8 45.7 80.4
1974 120.8 73.2 47.6 83.3
1975 124.5 75.6 48.9 85.3
1976 127.3 77.3 50.0 87.0
1977 130.3 79.3 51.0 89.3
1978 134.6 81.5 53.1 93.7
1979 138.6 84.2 54.4 98.0
1980 141.6 86.5 55.1 100.3
1981 144.0 89.1 55.0 102.6
1982 145.8 91.7 54.1 104.5
1983 147.5 95.0 52.6 105.4
1984 149.2 97.7 51.5 107.1
1985 151.8 100.9 50.9 109.6
1986 154.2 104.2 50.0 111.6
1987 156.6 108.2 48.4 113.5
1988 159.1 111.4 47.7 115.7
1989 162.3 114.5 47.8 118.1
1990 164.7 117.0 47.6 120.1
1991 166.6 119.3 47.2 121.5
1992 168.1 121.7 46.4 122.9
1993 169.8 124.2 45.6 124.4
1994 171.4 126.4 44.9 126.2
1995 173.6 128.8 44.8 128.2
1996 175.9 131.4 44.4 130.3
1997 178.2 134.2 44.0 132.4
1998 180.7 136.8 43.9 134.6
1999 183.3 139.1 44.2 137.1
2000 185.8 141.1 44.7 139.5
2001 188.2 143.1 45.1 141.7
2002 190.3 145.1 45.2 143.5
2003 192.0 147.1 44.8 144.6
2004 193.7 149.1 44.6 145.9
2005 196.2 151.3 44.9 148.1
2006 198.5 153.3 45.2 150.2
2007 200.8 155.3 45.5 152.3

  1 Figures are subject to revision.
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