Ilia is a rare variant of Ila that peaked in 2025 and has grown less common since.
Ilia is predominantly a girl name. In 2025 it ranked #4,217 among girls (34) and #2,430 among boys (56) — overall #3,809 across all names. The charts below show girls and boys separately.
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 90 | 90 | #4,217 | #2,430 |
| 2024 | 38 | 38 | #7,742 | #4,361 |
| 2023 | 33 | 33 | #6,768 | #5,759 |
| 2022 | 17 | 17 | #9,291 | #11,401 |
| 2021 | 27 | 27 | #6,504 | #8,429 |
| 2020 | 17 | 17 | #8,612 | #12,804 |
| 2019 | 17 | 17 | #10,810 | #9,205 |
| 2018 | 29 | 29 | #6,912 | #6,860 |
| 2017 | 35 | 35 | #5,571 | #6,853 |
| 2016 | 21 | 21 | #8,159 | #10,065 |
| 2015 | 22 | 22 | #8,640 | #8,292 |
| 2014 | 28 | 28 | #6,078 | #10,037 |
| 2013 | 21 | 21 | #6,107 | — |
| 2012 | 26 | 26 | #6,433 | #11,324 |
| 2011 | 16 | 16 | #7,567 | — |
| 2010 | 19 | 19 | #8,425 | #12,983 |
| 2009 | 19 | 19 | #9,085 | #11,519 |
| 2008 | 15 | 15 | #13,049 | #10,290 |
| 2007 | 18 | 18 | #9,778 | #11,448 |
| 2006 | 19 | 19 | #10,169 | #9,029 |
| 2005 | 18 | 18 | #10,408 | #8,588 |
| 2004 | 13 | 13 | #14,840 | #9,296 |
| 2003 | 9 | 9 | #10,752 | — |
| 2002 | 20 | 20 | #7,568 | #9,844 |
| 2001 | 23 | 23 | #7,093 | #7,821 |
| 2000 | 14 | 14 | #10,204 | #11,041 |
| 1999 | 21 | 21 | #6,292 | #10,539 |
| 1998 | 18 | 18 | #8,836 | #7,100 |
| 1997 | 7 | — | #11,271 | — |
| 1996 | 5 | — | #14,332 | — |
| 1995 | 13 | — | #6,792 | — |
| 1994 | 8 | — | #9,896 | — |
| 1993 | 7 | — | #10,999 | — |
| 1992 | 9 | — | #9,011 | — |
| 1991 | 12 | — | #7,122 | — |
| 1990 | 14 | — | #6,249 | — |
| 1989 | 14 | — | #5,939 | — |
| 1988 | 9 | — | #7,943 | — |
| 1987 | 8 | — | #8,266 | — |
| 1985 | 8 | — | #7,824 | — |
| 1984 | 12 | — | #5,653 | — |
| 1983 | 18 | — | #4,170 | — |
| 1982 | 21 | — | #3,817 | — |
| 1981 | 29 | — | #3,014 | — |
| 1980 | 43 | — | #2,294 | — |
| 1979 | 13 | — | #5,201 | — |
| 1978 | 5 | — | #10,321 | — |
| 1976 | 6 | — | #8,512 | — |
| 1975 | 6 | — | #8,354 | — |
| 1974 | 5 | — | #9,252 | — |
| 1973 | 9 | — | #5,728 | — |
| 1971 | 6 | — | #7,726 | — |
| 1970 | 8 | — | #6,003 | — |
| 1969 | 5 | — | #7,887 | — |
| 1968 | 5 | — | #7,419 | — |
| 1967 | 5 | — | #7,161 | — |
| 1966 | 8 | — | #5,027 | — |
| 1965 | 10 | — | #4,311 | — |
| 1964 | 5 | — | #7,156 | — |
| 1963 | 6 | — | #6,134 | — |
| 1962 | 6 | — | #6,137 | — |
| 1961 | 9 | — | #4,667 | — |
| 1960 | 5 | — | #6,722 | — |
| 1958 | 9 | — | #4,298 | — |
| 1956 | 9 | — | #4,276 | — |
| 1954 | 5 | — | #6,079 | — |
| 1931 | 5 | — | #4,621 | — |
| 1925 | 5 | — | #5,338 | — |
| 1924 | 6 | — | #4,720 | — |
| 1923 | 6 | — | #4,648 | — |
| 1915 | 5 | — | #4,579 | — |
| 1912 | 5 | — | #3,178 | — |