People with the first name Isaiah
175,788
About 1 in 1,886 Americans had this first name in the 2020 Census.
Measured, privacy-protected national Census count—not a total of historical baby-name records.
U.S. first-name statistics
How common is Isaiah?
Isaiah was the #315 most frequent first name in the 2020 Census.
National rank
#315
More common than 99.4% of listed first names
Peak year
2006
10,483 SSA-recorded births
2025 births
5,273
#98 across first names
Census frequency
1 in 1,886
Across the 2020 U.S. population
Sex distribution
Reported in the 2020 Census first-name table.
99.7% male0.3% female
Demographic distribution
Aggregated race and Hispanic-origin reporting in the 2020 Census name table.
Reading the result
Isaiah across two different records
The Census count answers “how many people had this name?” using a national snapshot of living residents in 2020. The SSA series answers “when was this name popular?” using Social Security card applications associated with births.
Isaiah reached its highest published annual SSA count in 2006, with 10,483 recorded births. In 2025, SSA recorded 5,273 babies with the name.
Names do not determine a person’s identity. Demographic percentages above describe national aggregates and should never be applied to an individual.
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