Recorded 1956–2025 · United States
Illiana was most popular in 2011, when 90 American babies were given the name — ranking #3,724 that year. In 2025 it ranked #4,387, with 72 births. Across 1880–2025 the Social Security Administration has recorded 2,095 people named Illiana.
Illiana first appears in Social Security Administration records in 1956, which makes it about 69 years old as a recorded American name. It has been recorded in 56 of the 70 years since.
The Social Security Administration has recorded 2,095 American births named Illiana between 1880 and 2025. That is recorded US births, not a world population — it counts people issued a Social Security number at birth in the United States. Of those, roughly 2,071 are estimated to be alive today.
72 American babies were named Illiana in 2025, ranking #4,387 that year.
Illiana is holding steady. Across 2021–2025 it averaged 76 births a year, against 72 a year across 2011–2015 — a change of +6% over the decade.
Measured on recorded births. American births overall have fallen since 2007, so most established names lose births over any recent decade — a name can shed births and still hold its rank. Compare the rank above, which is measured against the other names of the same year.
Across the whole record Illiana is a girl’s name — 100.0% of the 2,095 Americans given it were girls and 0.0% were boys. In births since 2016 it is 100% girls and 0% boys.
Counted from every US birth the Social Security Administration recorded under this name, so it reflects use rather than opinion. A name given to fewer than five babies of one sex in a year is withheld at source and is not counted.
Roughly 2,071 Americans named Illiana are alive today — 99% of everyone ever recorded with the name. The median is 15 years old, and half are between 8 and 22.
An estimate, not a count. Recorded births are carried forward through the Social Security Administration’s 2023 period life table, by age and sex. That table describes mortality in one recent year, so it credits the oldest cohorts with today’s survival rather than the harsher rates they actually lived through — the further back a name peaked, the more this will overstate how many remain. It counts people issued a Social Security number at birth, not immigrants who arrived later.
How much more common the name is in each state than across the country as a whole.
See Illiana on the interactive charts
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Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org