Share of all income held by the top 1%, United States and by region, 1917–2013
| Year | United States (by Piketty and Saez) | Northeast | Midwest | South | West |
|---|---|---|---|---|---|
| 1917 | 18% | 23 | 13 | 16 | 13 |
| 1918 | 16 | 20 | 12 | 15 | 12 |
| 1919 | 16 | 21 | 13 | 14 | 12 |
| 1920 | 15 | 18 | 12 | 13 | 11 |
| 1921 | 16 | 18 | 13 | 14 | 12 |
| 1922 | 17 | 20 | 14 | 15 | 13 |
| 1923 | 16 | 18 | 13 | 14 | 12 |
| 1924 | 17 | 20 | 15 | 15 | 13 |
| 1925 | 20 | 23 | 17 | 18 | 15 |
| 1926 | 20 | 22 | 17 | 18 | 16 |
| 1927 | 21 | 23 | 18 | 19 | 16 |
| 1928 | 24 | 26 | 21 | 20 | 19 |
| 1929 | 22 | 27 | 18 | 17 | 16 |
| 1930 | 17 | 19 | 15 | 15 | 14 |
| 1931 | 15 | 16 | 14 | 15 | 13 |
| 1932 | 16 | 16 | 13 | 15 | 12 |
| 1933 | 16 | 18 | 14 | 15 | 13 |
| 1934 | 16 | 17 | 15 | 16 | 14 |
| 1935 | 17 | 18 | 14 | 16 | 14 |
| 1936 | 19 | 20 | 18 | 19 | 16 |
| 1937 | 17 | 18 | 15 | 17 | 15 |
| 1938 | 16 | 15 | 14 | 16 | 13 |
| 1939 | 16 | 16 | 15 | 16 | 13 |
| 1940 | 16 | 16 | 15 | 17 | 13 |
| 1941 | 16 | 15 | 15 | 16 | 13 |
| 1942 | 13 | 14 | 13 | 13 | 11 |
| 1943 | 12 | 13 | 11 | 12 | 11 |
| 1944 | 11 | 11 | 13 | 12 | 11 |
| 1945 | 13 | 15 | 12 | 12 | 11 |
| 1946 | 13 | 14 | 12 | 13 | 11 |
| 1947 | 12 | 12 | 11 | 12 | 10 |
| 1948 | 12 | 13 | 11 | 13 | 12 |
| 1949 | 12 | 12 | 11 | 12 | 11 |
| 1950 | 13 | 14 | 12 | 13 | 12 |
| 1951 | 12 | 13 | 11 | 12 | 11 |
| 1952 | 11 | 12 | 10 | 11 | 10 |
| 1953 | 10 | 11 | 9 | 10 | 9 |
| 1954 | 11 | 12 | 10 | 11 | 10 |
| 1955 | 11 | 12 | 10 | 11 | 10 |
| 1956 | 11 | 12 | 10 | 11 | 10 |
| 1957 | 10 | 11 | 10 | 11 | 9 |
| 1958 | 10 | 11 | 9 | 10 | 9 |
| 1959 | 11 | 12 | 9 | 11 | 10 |
| 1960 | 10 | 11 | 9 | 10 | 9 |
| 1961 | 11 | 12 | 10 | 11 | 10 |
| 1962 | 10 | 11 | 9 | 10 | 9 |
| 1963 | 10 | 11 | 9 | 10 | 9 |
| 1964 | 10 | 11 | 10 | 11 | 10 |
| 1965 | 11 | 12 | 10 | 11 | 10 |
| 1966 | 10 | 11 | 10 | 11 | 9 |
| 1967 | 11 | 12 | 10 | 11 | 10 |
| 1968 | 11 | 13 | 10 | 11 | 10 |
| 1969 | 10 | 12 | 10 | 11 | 9 |
| 1970 | 9 | 10 | 9 | 9 | 8 |
| 1971 | 9 | 10 | 9 | 10 | 9 |
| 1972 | 10 | 10 | 9 | 10 | 9 |
| 1973 | 9 | 10 | 8 | 10 | 9 |
| 1974 | 9 | 9 | 8 | 9 | 8 |
| 1975 | 9 | 9 | 8 | 10 | 8 |
| 1976 | 9 | 9 | 8 | 9 | 8 |
| 1977 | 9 | 9 | 8 | 10 | 9 |
| 1978 | 9 | 9 | 8 | 9 | 9 |
| 1979 | 10 | 10 | 9 | 10 | 10 |
| 1980 | 10 | 11 | 9 | 10 | 9 |
| 1981 | 10 | 11 | 9 | 10 | 9 |
| 1982 | 11 | 11 | 10 | 11 | 9 |
| 1983 | 12 | ||||
| 1984 | 12 | ||||
| 1985 | 13 | ||||
| 1986 | 16 | 15 | 11 | 13 | 12 |
| 1987 | 13 | 13 | 10 | 11 | 10 |
| 1988 | 15 | 15 | 11 | 13 | 12 |
| 1989 | 14 | 14 | 11 | 12 | 12 |
| 1990 | 14 | 16 | 13 | 14 | 15 |
| 1991 | 13 | 15 | 12 | 13 | 14 |
| 1992 | 15 | 17 | 13 | 14 | 14 |
| 1993 | 14 | 16 | 13 | 14 | 14 |
| 1994 | 14 | 16 | 13 | 14 | 14 |
| 1995 | 15 | 17 | 14 | 15 | 15 |
| 1996 | 17 | 19 | 17 | 16 | 16 |
| 1997 | 18 | 20 | 15 | 17 | 18 |
| 1998 | 19 | 22 | 16 | 18 | 19 |
| 1999 | 20 | 23 | 16 | 18 | 22 |
| 2000 | 22 | 25 | 16 | 18 | 24 |
| 2001 | 18 | 23 | 15 | 16 | 18 |
| 2002 | 17 | 20 | 14 | 15 | 16 |
| 2003 | 18 | 18 | 13 | 15 | 16 |
| 2004 | 20 | 22 | 16 | 18 | 20 |
| 2005 | 22 | 24 | 17 | 20 | 22 |
| 2006 | 23 | 24 | 17 | 21 | 22 |
| 2007 | 24 | 26 | 18 | 20 | 22 |
| 2008 | 21 | 23 | 16 | 19 | 18 |
| 2009 | 18 | 21 | 15 | 17 | 17 |
| 2010 | 20 | 24 | 17 | 18 | 20 |
| 2011 | 20 | 24 | 17 | 18 | 19 |
| 2012 | 22 | 26 | 19 | 21 | 23 |
| 2013 | 20.081 |
Note: Data are for tax units. Tax data from 1983 to 1985 were unavailable, hence the gap in regional figures. Income includes capital gains income.
Source: Authors’ analysis of state-level tax data from Sommeiller (2006) extended to 2012 using state-level data from the Internal Revenue Service SOI Tax Stats (various years), and Piketty and Saez (2012)