Quick answers about Winthrop
How many people are named Winthrop?
An estimated 362 living Americans are named Winthrop.
How rare is Winthrop?
Winthrop fell below the SSA's 5-birth reporting floor in 2025. It is extremely rare as a new baby name.
How old is the typical Winthrop?
The median age of a living American named Winthrop is approximately 65 years, with most bearers falling between 55 and 75 years old.
Is Winthrop still popular?
Not especially. Winthrop has been declining since its 1915 peak and registered 0 births in 2025.
Where is Winthrop most common?
Winthrop has its strongest geographic signal in Massachusetts, where it appears 11.6× more often than the national baseline.
1883Peak 19152025
Where it lives now
Winthrop is most concentrated in Massachusetts — about 11.6× the national rate in the 1920s.
States where Winthrop is given more often than the national average — its present-day heartland.
3×+
2×+
1.5×+
1.2×+
~ national
