Recorded 1880–2025 · United States
Tillie was most popular in 1915, when 505 American babies were given the name — ranking #472 that year. In 2025 it ranked #2,392, with 177 births. Across 1880–2025 the Social Security Administration has recorded 15,765 people named Tillie.
The Social Security Administration’s records begin in 1880, and Tillie is already there in that first year — so the name is older than the record and these figures cannot date it. It has been recorded in 145 of the 146 years since.
The Social Security Administration has recorded 15,765 American births named Tillie 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 3,127 are estimated to be alive today.
177 American babies were named Tillie in 2025, ranking #2,392 that year.
Tillie is rising. Across 2021–2025 it averaged 166 births a year, against 48 a year across 2011–2015 — a change of +244% 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 Tillie is a girl’s name — 99.8% of the 15,765 Americans given it were girls and 0.2% 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 3,127 Americans named Tillie are alive today — 20% of everyone ever recorded with the name. The median is 18 years old, and half are between 5 and 71. That is a wide band, the mark of a name in steady use across generations rather than a passing fashion.
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 Tillie on the interactive charts
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Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org