Winthrop
Recorded 1883–2023 · United States
Winthrop was most popular in 1915, when 48 American babies were given the name — ranking #1,811 that year. It was not recorded in 2025. Across 1880–2025 the Social Security Administration has recorded 1,178 people named Winthrop.
Winthrop over time
How old is the name Winthrop?
Winthrop first appears in Social Security Administration records in 1883, which makes it about 142 years old as a recorded American name. It has been recorded in 82 of the 143 years since.
How many people are named Winthrop?
The Social Security Administration has recorded 1,178 American births named Winthrop 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 412 are estimated to be alive today.
How many babies were named Winthrop in 2025?
Winthrop was not recorded in 2025. The SSA withholds any name given to fewer than five babies in a year, so fewer than five American babies were given it.
Is Winthrop getting more or less popular?
Winthrop is too rare for a direction to mean much. It averaged 6 births a year across 2021–2025 against 11 a year a decade earlier — at these counts a single baby moves the percentage, and any year under five births is withheld at source.
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.
Is Winthrop a boy’s or a girl’s name?
Across the whole record Winthrop is a boy’s name — 0.0% of the 1,178 Americans given it were girls and 100.0% were boys. In births since 2016 it is 0% girls and 100% 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.
How old is someone named Winthrop?
Roughly 412 Americans named Winthrop are alive today — 35% of everyone ever recorded with the name. The median is 67 years old, and half are between 57 and 77.
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.
Where Winthrop is most concentrated
How much more common the name is in each state than across the country as a whole.
Explore further
See Winthrop on the interactive charts
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Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org