The baby name Jillian appears in baby name data for the United States from 1962 to 2024. It was most popular in 1989 with 3,452 babies given the name.
In the later years of this period, Jillian has become more popular compared with earlier years.
| Year | Count |
|---|---|
| 1962 | 7 |
| 1965 | 6 |
| 1966 | 5 |
| 1967 | 27 |
| 1968 | 44 |
| 1969 | 15 |
| 1970 | 41 |
| 1971 | 26 |
| 1972 | 57 |
| 1973 | 60 |
| 1974 | 53 |
| 1975 | 36 |
| 1976 | 187 |
| 1977 | 1,316 |
| 1978 | 1,636 |
| 1979 | 1,879 |
| 1980 | 1,918 |
| 1981 | 2,244 |
| 1982 | 3,290 |
| 1983 | 2,705 |
| 1984 | 2,838 |
| 1985 | 2,678 |
| 1986 | 2,934 |
| 1987 | 3,287 |
| 1988 | 3,237 |
| 1989 | 3,452 |
| 1989 | 9 |
| 1990 | 2,826 |
| 1991 | 2,848 |
| 1992 | 2,218 |
| 1993 | 2,260 |
| 1994 | 1,687 |
| 1995 | 1,646 |
| 1996 | 1,591 |
| 1997 | 2,098 |
| 1998 | 2,356 |
| 1999 | 2,367 |
| 2000 | 2,961 |
| 2001 | 2,992 |
| 2002 | 2,882 |
| 2003 | 2,675 |
| 2004 | 2,788 |
| 2005 | 2,707 |
| 2006 | 2,439 |
| 2007 | 2,265 |
| 2008 | 2,281 |
| 2009 | 2,281 |
| 2010 | 2,000 |
| 2011 | 1,688 |
| 2012 | 1,303 |
| 2013 | 1,037 |
| 2014 | 848 |
| 2015 | 817 |
| 2016 | 707 |
| 2017 | 630 |
| 2018 | 384 |
| 2019 | 318 |
| 2020 | 238 |
| 2021 | 246 |
| 2022 | 225 |
| 2023 | 197 |
| 2024 | 205 |