William
Quick answers about William
How many people are named William?
An estimated 2 million living Americans are named William.
How rare is William?
William is still widely used among babies today, with 10,545 boys receiving the name in 2025, down 84.3% from its 1947 peak.
How old is the typical William?
The median age of a living American named William is approximately 53 years, with most bearers falling between 31 and 68 years old.
Is William still popular?
Somewhat. William has been declining since its 1947 peak and registered 10,545 births in 2025.
Where is William most common?
William has its strongest geographic signal in District of Columbia, where it appears 2.6× more often than the national baseline.
William is most concentrated in District of Columbia — about 2.6× the national rate in the 2020s. It also runs high in Wyoming.
States where William is given more often than the national average — its present-day heartland.