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How Many People Are Named Isaiah?
Estimated people named Isaiah living in the U.S. today
240,363
Gender distribution
100% male · 0% female in SSA records.
Name scorecard
- Total U.S. births recorded (1880–2024): 249,316
- Peak year: 2006 (10,483 births)
- Estimated living today: 240,363
Isaiah by age group — who carries the name today?
Isaiah popularity over time (1880–2024)
Estimated living bearers by birth decade
About the name Isaiah
Isaiah has been recorded by the Social Security Administration since the 19th century dataset began. In total, 249,316 babies were given the name in the United States between 1880 and 2024. After adjusting each birth cohort for survival to today, an estimated 240,363 bearers are still living — roughly 1 in 1,422 Americans. The name's strongest decade shapes how old most Isaiahs you meet will be, which the age-group breakdown above shows directly. All figures are statistical estimates from public records; see our methodology for sources, the survival model, and the limits of the data (names given to fewer than five babies in a year are not published by the SSA).
Frequently asked questions
How many people are named Isaiah in the US?
An estimated 240,363 people named Isaiah are living in the United States today, based on SSA birth records from 1880 to 2024 adjusted for survival. That makes Isaiah uncommon — about 1 in 1,422 Americans.
Is Isaiah a boy or girl name?
In SSA records, Isaiah is 100% male and 0% female, so it is predominantly a male name.
When was Isaiah most popular?
Isaiah peaked in 2006, when 10,483 babies were given the name. Its current trend is declining compared with the previous decade.
How rare is the name Isaiah?
Isaiah ranks #216 of 104,819 first names recorded by the SSA, with a rarity score of 37 out of 100 (higher means rarer).