Recorded 1881–2025 · United States
Blair was most popular in 2025, when 1,876 American babies were given the name — ranking #363 that year. In 2025 it ranked #363, with 1,876 births. Across 1880–2025 the Social Security Administration has recorded 38,276 people named Blair.
Blair first appears in Social Security Administration records in 1881, which makes it about 144 years old as a recorded American name. It has been recorded in 139 of the 145 years since.
The Social Security Administration has recorded 38,276 American births named Blair 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 33,915 are estimated to be alive today.
1,876 American babies were named Blair in 2025, ranking #363 that year.
Blair is rising. Across 2021–2025 it averaged 1,399 births a year, against 443 a year across 2011–2015 — a change of +216% 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 Blair is a unisex name — 60.8% of the 38,276 Americans given it were girls and 39.2% were boys. It changed hands: since 1981 it has gone mainly to girls, having gone mainly to boys before that. In births since 2016 it is 94% girls and 6% 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 33,915 Americans named Blair are alive today — 89% of everyone ever recorded with the name. The median is 29 years old, and half are between 7 and 43. 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 Blair on the interactive charts
About · Privacy · Contact
Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org