Theo in Illinois
Babies in Illinois
1,341
since 1918
Rank in Illinois · 2025
—
recorded as girls
#70
recorded as boys
Peak year in Illinois
2023
Babies per 1,000 (same sex) in Illinois, 1910–2025
Recorded as girls
Recorded as boys
US overall
Yearly share of babies named Theo in Illinois from 1910 to 2025, compared with the national share (dashed line).
Show every year
| Year | Girls | Rank | Boys | Rank |
|---|---|---|---|---|
| 2025 | <5 | — | 154 | 70 |
| 2024 | <5 | — | 153 | 72 |
| 2023 | <5 | — | 176 | 55 |
| 2022 | <5 | — | 140 | 87 |
| 2021 | <5 | — | 131 | 97 |
| 2020 | <5 | — | 101 | 128 |
| 2019 | <5 | — | 80 | 181 |
| 2018 | <5 | — | 95 | 157 |
| 2017 | <5 | — | 66 | 215 |
| 2016 | <5 | — | 58 | 243 |
| 2015 | <5 | — | 37 | 338 |
| 2014 | <5 | — | 29 | 403 |
| 2013 | <5 | — | 17 | 565 |
| 2012 | <5 | — | 13 | 685 |
| 2011 | <5 | — | 16 | 596 |
| 2010 | <5 | — | 5 | 1,357 |
| 2009 | <5 | — | <5 | — |
| 2008 | <5 | — | 7 | 1,088 |
| 2007 | <5 | — | 7 | 1,105 |
| 2006 | <5 | — | 5 | 1,299 |
| 2005 | <5 | — | <5 | — |
| 2004 | <5 | — | 5 | 1,273 |
| 2003 | <5 | — | <5 | — |
| 2002 | <5 | — | <5 | — |
| 2001 | <5 | — | <5 | — |
| 2000 | <5 | — | <5 | — |
| 1999 | <5 | — | <5 | — |
| 1998 | <5 | — | 6 | 1,035 |
| 1997 | <5 | — | <5 | — |
| 1996 | <5 | — | <5 | — |
| 1995 | <5 | — | <5 | — |
| 1994 | <5 | — | <5 | — |
| 1993 | <5 | — | <5 | — |
| 1992 | <5 | — | 7 | 864 |
| 1991 | <5 | — | 5 | 1,037 |
| 1990 | <5 | — | <5 | — |
| 1989 | <5 | — | 5 | 985 |
| 1988 | <5 | — | <5 | — |
| 1987 | <5 | — | <5 | — |
| 1986 | <5 | — | <5 | — |
| 1985 | <5 | — | <5 | — |
| 1984 | <5 | — | <5 | — |
| 1983 | <5 | — | <5 | — |
| 1982 | <5 | — | <5 | — |
| 1981 | <5 | — | <5 | — |
| 1980 | <5 | — | <5 | — |
| 1979 | <5 | — | <5 | — |
| 1978 | <5 | — | <5 | — |
| 1977 | <5 | — | 5 | 864 |
| 1976 | <5 | — | <5 | — |
| 1975 | <5 | — | <5 | — |
| 1974 | <5 | — | <5 | — |
| 1973 | <5 | — | <5 | — |
| 1972 | <5 | — | <5 | — |
| 1971 | <5 | — | <5 | — |
| 1970 | <5 | — | <5 | — |
| 1969 | <5 | — | <5 | — |
| 1968 | <5 | — | <5 | — |
| 1967 | <5 | — | <5 | — |
| 1966 | <5 | — | <5 | — |
| 1965 | <5 | — | <5 | — |
| 1964 | <5 | — | <5 | — |
| 1963 | <5 | — | <5 | — |
| 1962 | <5 | — | <5 | — |
| 1961 | <5 | — | <5 | — |
| 1960 | <5 | — | <5 | — |
| 1959 | <5 | — | <5 | — |
| 1958 | <5 | — | <5 | — |
| 1957 | <5 | — | <5 | — |
| 1956 | <5 | — | <5 | — |
| 1955 | <5 | — | <5 | — |
| 1954 | <5 | — | <5 | — |
| 1953 | <5 | — | <5 | — |
| 1952 | <5 | — | <5 | — |
| 1951 | <5 | — | <5 | — |
| 1950 | <5 | — | <5 | — |
| 1949 | <5 | — | <5 | — |
| 1948 | <5 | — | <5 | — |
| 1947 | <5 | — | <5 | — |
| 1946 | <5 | — | <5 | — |
| 1945 | <5 | — | <5 | — |
| 1944 | <5 | — | <5 | — |
| 1943 | <5 | — | <5 | — |
| 1942 | <5 | — | <5 | — |
| 1941 | <5 | — | <5 | — |
| 1940 | <5 | — | <5 | — |
| 1939 | <5 | — | <5 | — |
| 1938 | <5 | — | <5 | — |
| 1937 | <5 | — | <5 | — |
| 1936 | <5 | — | <5 | — |
| 1935 | <5 | — | <5 | — |
| 1934 | <5 | — | <5 | — |
| 1933 | <5 | — | <5 | — |
| 1932 | <5 | — | <5 | — |
| 1931 | <5 | — | <5 | — |
| 1930 | <5 | — | <5 | — |
| 1929 | <5 | — | <5 | — |
| 1928 | <5 | — | <5 | — |
| 1927 | 6 | 592 | <5 | — |
| 1926 | <5 | — | <5 | — |
| 1925 | <5 | — | <5 | — |
| 1924 | <5 | — | <5 | — |
| 1923 | <5 | — | <5 | — |
| 1922 | 7 | 529 | <5 | — |
| 1921 | <5 | — | <5 | — |
| 1920 | <5 | — | <5 | — |
| 1919 | <5 | — | <5 | — |
| 1918 | 5 | 639 | <5 | — |