Recorded 1929–2025 · United States
Heidi was most popular in 1972, when 4,741 American babies were given the name — ranking #128 that year. In 2025 it ranked #716, with 894 births. Across 1880–2025 the Social Security Administration has recorded 149,687 people named Heidi.
Heidi first appears in Social Security Administration records in 1929, which makes it about 96 years old as a recorded American name. It has been recorded in 96 of the 97 years since.
The Social Security Administration has recorded 149,687 American births named Heidi 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 140,534 are estimated to be alive today.
894 American babies were named Heidi in 2025, ranking #716 that year.
Heidi is holding steady. Across 2021–2025 it averaged 864 births a year, against 940 a year across 2011–2015 — a change of -8% 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 Heidi is a girl’s name — 99.8% of the 149,687 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 140,534 Americans named Heidi are alive today — 94% of everyone ever recorded with the name. The median is 49 years old, and half are between 37 and 58.
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.
German · short form of Adelheid, "noble kind"
How much more common the name is in each state than across the country as a whole.
See Heidi on the interactive charts
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Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org