Jillisa
Jillisa was last recorded in 1997, when 8 babies were given it; 118 Americans have been recorded with it between 1971 and 1997 (Social Security Administration, published May 2026).
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Jillisa by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Jillisa?
Unranked in 2025
Its last girls’ rank on record is #10,214, in 1997; SSA lists a name only in years with 5 or more births.
21 babies in 1989, the peak
Jillisa peaked in 1989, when 21 girls were given it, #4,412 among girls’ names. It was not recorded in 2025.
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 1997 | 8 | #10,214 | 4.6 |
| 1994 | 5 | #14,387 | 2.8 |
| 1993 | 6 | #12,465 | 3.3 |
| 1992 | 8 | #9,881 | 4.3 |
| 1991 | 20 | #4,887 | 10.7 |
| 1990 | 15 | #5,951 | 7.9 |
| 1989 | 21 | #4,412 | 11.4 |
| 1988 | 12 | #6,436 | 6.7 |
| 1987 | 5 | #12,082 | 2.9 |
| 1981 | 5 | #11,087 | 3.0 |
Every recorded year (12)
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 1979 | 7 | #8,397 | 4.4 |
| 1971 | 6 | #7,763 | 3.6 |
Ranks and shares: girls’ names in each year’s SSA file; share of all girls SSA recorded that year.
Is Jillisa a boy’s or a girl’s name?
Jillisa has been recorded only for girls: SSA lists no boys with the name in 12 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Jillisa: the SSA national file counts each sex separately.
How many people are named Jillisa, and how old are they?
An estimated 115 Americans named Jillisa and born in the U.S. are alive in 2026 (97% of everyone recorded); the median is 36 years old and half are between 35 and 38. An estimate from SSA’s births and life tables, not a count.
The 2020 Census counted 153 people named Jillisa (153 women and girls, 0 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 116 born in the U.S. The Census count is 32% above that prediction. Possible reasons: the Census counts people born abroad, whom SSA’s files leave out, and it records the name people give, which SSA may have recorded under another spelling or as part of a compound name.
Living estimate: SSA births carried forward with the survival rates in SSA’s cohort life tables (2024 Trustees Report) for each birth year and sex. How the estimate is made. Count: Census Bureau, first names in the 2020 Census (released April 14, 2026; names reported 100 or more times, with the Bureau’s disclosure-avoidance adjustment).
Names that rose and fell in the same decades as Jillisa
Names whose births rose and fell across the same decades, measured on each decade’s share of births.
Similar histories: each decade’s share of births, from the SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data.