Recorded 1964–2025 · United States
Demi was most popular in 2020, when 914 American babies were given the name — ranking #692 that year. In 2025 it ranked #787, with 811 births. Across 1880–2025 the Social Security Administration has recorded 14,921 people named Demi.
Demi first appears in Social Security Administration records in 1964, which makes it about 61 years old as a recorded American name. It has been recorded in 47 of the 62 years since.
The Social Security Administration has recorded 14,921 American births named Demi 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 14,785 are estimated to be alive today.
811 American babies were named Demi in 2025, ranking #787 that year.
Demi is rising. Across 2021–2025 it averaged 788 births a year, against 395 a year across 2011–2015 — a change of +99% 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 Demi is a girl’s name — 99.7% of the 14,921 Americans given it were girls and 0.3% were boys. In births since 2016 it is 99% girls and 1% 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 14,785 Americans named Demi are alive today — 99% of everyone ever recorded with the name. The median is 10 years old, and half are between 5 and 23.
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 Demi on the interactive charts
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Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org