Recorded 1938–2025 · United States
Marci was most popular in 1971, when 798 American babies were given the name — ranking #590 that year. In 2025 it ranked #8,252, with 28 births. Across 1880–2025 the Social Security Administration has recorded 14,037 people named Marci.
Marci first appears in Social Security Administration records in 1938, which makes it about 87 years old as a recorded American name. It has been recorded in 86 of the 88 years since.
The Social Security Administration has recorded 14,037 American births named Marci 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 12,982 are estimated to be alive today.
28 American babies were named Marci in 2025, ranking #8,252 that year.
Marci is holding steady. Across 2021–2025 it averaged 27 births a year, against 23 a year across 2011–2015 — a change of +16% 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 Marci is a girl’s name — 99.9% of the 14,037 Americans given it were girls and 0.1% 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 12,982 Americans named Marci are alive today — 92% of everyone ever recorded with the name. The median is 54 years old, and half are between 46 and 60.
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 Marci on the interactive charts
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Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org