The recently concluded U.S. federal government shutdown impacted ACS data release timelines. Once the 2024 ACS 1-year PUMS data are available, IPUMS will process and release them as quickly as possible.
Codes and Frequencies
| BBBB | N/A (Not eligible - Born in the US) | 2,803,889 |
| 1934 | 1934 or earlier (Bottom-coded) | 177 |
| 1935 | 1935 - 1938 | 163 |
| 1939 | 1939 - 1942 | 275 |
| 1943 | 1943 - 1944 | 205 |
| 1945 | 1945 | 220 |
| 1946 | 1946 | 336 |
| 1947 | 1947 | 421 |
| 1948 | 1948 | 475 |
| 1949 | 1949 | 602 |
| 1950 | 1950 | 894 |
| 1951 | 1951 | 710 |
| 1952 | 1952 | 866 |
| 1953 | 1953 | 721 |
| 1954 | 1954 | 981 |
| 1955 | 1955 | 1,282 |
| 1956 | 1956 | 1,590 |
| 1957 | 1957 | 1,387 |
| 1958 | 1958 | 1,431 |
| 1959 | 1959 | 1,558 |
| 1960 | 1960 | 2,359 |
| 1961 | 1961 | 1,824 |
| 1962 | 1962 | 2,064 |
| 1963 | 1963 | 2,108 |
| 1964 | 1964 | 1,941 |
| 1965 | 1965 | 2,427 |
| 1966 | 1966 | 2,152 |
| 1967 | 1967 | 2,482 |
| 1968 | 1968 | 3,163 |
| 1969 | 1969 | 3,338 |
| 1970 | 1970 | 4,788 |
| 1971 | 1971 | 3,102 |
| 1972 | 1972 | 3,810 |
| 1973 | 1973 | 3,483 |
| 1974 | 1974 | 3,758 |
| 1975 | 1975 | 4,861 |
| 1976 | 1976 | 4,019 |
| 1977 | 1977 | 3,733 |
| 1978 | 1978 | 5,009 |
| 1979 | 1979 | 5,993 |
| 1980 | 1980 | 9,796 |
| 1981 | 1981 | 5,580 |
| 1982 | 1982 | 5,220 |
| 1983 | 1983 | 4,716 |
| 1984 | 1984 | 5,641 |
| 1985 | 1985 | 7,333 |
| 1986 | 1986 | 6,498 |
| 1987 | 1987 | 5,762 |
| 1988 | 1988 | 6,883 |
| 1989 | 1989 | 8,740 |
| 1990 | 1990 | 10,641 |
| 1991 | 1991 | 7,626 |
| 1992 | 1992 | 7,993 |
| 1993 | 1993 | 7,289 |
| 1994 | 1994 | 7,637 |
| 1995 | 1995 | 9,052 |
| 1996 | 1996 | 8,586 |
| 1997 | 1997 | 7,836 |
| 1998 | 1998 | 9,575 |
| 1999 | 1999 | 10,908 |
| 2000 | 2000 | 14,608 |
| 2001 | 2001 | 12,134 |
| 2002 | 2002 | 8,686 |
| 2003 | 2003 | 8,876 |
| 2004 | 2004 | 8,954 |
| 2005 | 2005 | 10,079 |
| 2006 | 2006 | 9,188 |
| 2007 | 2007 | 8,539 |
| 2008 | 2008 | 8,465 |
| 2009 | 2009 | 7,701 |
| 2010 | 2010 | 9,201 |
| 2011 | 2011 | 7,969 |
| 2012 | 2012 | 8,249 |
| 2013 | 2013 | 9,002 |
| 2014 | 2014 | 9,859 |
| 2015 | 2015 | 11,750 |
| 2016 | 2016 | 12,621 |
| 2017 | 2017 | 10,797 |
| 2018 | 2018 | 11,052 |
| 2019 | 2019 | 12,542 |
| 2020 | 2020 | 6,927 |
| 2021 | 2021 | 7,491 |
Editing Procedure
There is no editing procedure available for this variable.
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