How Common is the First Name Isaiah?
We estimate that there are 246,347 people named Isaiah who are currently alive and were born in the United States. Isaiah is the 104th most common for men, and the 215th most common overall.
How Old are People Named Isaiah?
The average person named Isaiah is 17.34 years old.
Is Isaiah a Popular Baby Name Right Now?
5,273 people named Isaiah were born in the U.S. in 2025. It was the 57th most popular name for boys, and the 98th most popular overall.
The popularity of Isaiah peaked in 2006, when it was the 39th most popular name for baby boys.
Is Isaiah a Boy's Name or a Girl's Name?
Isaiah is almost exclusively a male name. 99.7% of people named Isaiah are male.
Popularity of Isaiah in England
In 2020, Isaiah was the 164th most popular name for boys in England and Wales.