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## Workers Insured for Social Security Benefits

Office of the Chief Actuary Statistical Tables

Estimated number of insured workers,a by insured status,  on December 31, 1940-2024

[In millions]

| 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 | 70.9           |
| 1969 | 105.9 | 66.4  | 39.5 | 73.2           |
| 1970 | 108.7 | 67.5  | 41.1 | 75.4           |
| 1971 | 111.2 | 68.7  | 42.4 | 77.1           |
| 1972 | 113.7 | 69.9  | 43.8 | 78.8           |
| 1973 | 116.9 | 71.2  | 45.6 | 81.4           |
| 1974 | 120.3 | 72.7  | 47.6 | 84.3           |
| 1975 | 123.3 | 74.3  | 49.0 | 86.3           |
| 1976 | 126.1 | 76.2  | 49.9 | 87.8           |
| 1977 | 129.1 | 78.2  | 51.0 | 89.8           |
| 1978 | 133.5 | 80.5  | 53.0 | 94.2           |
| 1979 | 137.5 | 83.0  | 54.5 | 97.9           |
| 1980 | 140.6 | 85.5  | 55.1 | 100.5          |
| 1981 | 143.1 | 88.2  | 54.9 | 102.3          |
| 1982 | 145.1 | 91.1  | 54.0 | 103.7          |
| 1983 | 146.6 | 94.1  | 52.6 | 104.7          |
| 1984 | 148.7 | 97.2  | 51.5 | 106.3          |
| 1985 | 151.3 | 100.3 | 50.9 | 108.8          |
| 1986 | 153.8 | 103.6 | 50.1 | 111.1          |
| 1987 | 156.2 | 107.7 | 48.5 | 113.2          |
| 1988 | 158.9 | 111.0 | 47.9 | 115.3          |
| 1989 | 161.8 | 113.8 | 47.9 | 117.6          |
| 1990 | 164.3 | 116.5 | 47.8 | 119.5          |
| 1991 | 166.2 | 118.9 | 47.3 | 120.8          |
| 1992 | 167.8 | 121.3 | 46.5 | 122.0          |
| 1993 | 169.3 | 123.7 | 45.6 | 123.4          |
| 1994 | 171.1 | 126.1 | 45.0 | 125.1          |
| 1995 | 173.3 | 128.4 | 44.9 | 127.1          |
| 1996 | 175.5 | 131.0 | 44.5 | 129.1          |
| 1997 | 177.8 | 133.6 | 44.1 | 131.2          |
| 1998 | 180.2 | 136.2 | 44.1 | 133.4          |
| 1999 | 182.8 | 138.4 | 44.3 | 135.8          |
| 2000 | 185.4 | 140.4 | 44.9 | 138.1          |
| 2001 | 187.6 | 142.3 | 45.3 | 140.0          |
| 2002 | 189.5 | 144.1 | 45.3 | 141.3          |
| 2003 | 191.0 | 146.1 | 45.0 | 142.4          |
| 2004 | 192.8 | 148.1 | 44.7 | 143.8          |
| 2005 | 194.9 | 150.2 | 44.7 | 145.5          |
| 2006 | 197.2 | 152.4 | 44.8 | 147.3          |
| 2007 | 199.6 | 154.6 | 45.0 | 148.9          |
| 2008 | 201.7 | 156.6 | 45.1 | 149.9          |
| 2009 | 203.1 | 158.5 | 44.6 | 149.6          |
| 2010 | 204.2 | 160.2 | 44.0 | 148.9          |
| 2011 | 205.6 | 161.8 | 43.8 | 149.0          |
| 2012 | 207.4 | 163.3 | 44.1 | 149.5          |
| 2013 | 209.5 | 164.9 | 44.6 | 149.9          |
| 2014 | 212.0 | 166.6 | 45.4 | 150.7          |
| 2015 | 214.6 | 168.3 | 46.3 | 151.7          |
| 2016 | 217.3 | 170.0 | 47.3 | 152.9          |
| 2017 | 219.9 | 171.7 | 48.2 | 153.9          |
| 2018 | 222.4 | 173.1 | 49.4 | 155.0          |
| 2019 | 225.1 | 174.6 | 50.5 | 156.3          |
| 2020 | 226.8 | 175.9 | 50.9 | 156.9          |
| 2021 | 228.8 | 177.3 | 51.6 | 158.1          |
| 2022 | 230.7 | 178.7 | 52.0 | 159.4          |
| 2023 | 232.6 | 180.2 | 52.5 | 160.6          |
| 2024 | 234.5 | 181.6 | 52.9 | 161.4          |
a

    Notes: Figures are subject to revision.      Totals do not necessarily equal the sum of rounded components.        
Source: Social Security Administration, estimates from the 2024 Trustees Report based in part on the Continuous Work History Sample, 1 percent sample.
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