Humanverse

Isabel vs Isaiah

American parents have registered 254,710 Isaiahs since 1880, against 133,977 Isabels. Isaiah is still ahead, with 5,273 babies in 2025.

Babies given each name, 1880–2025

Births per year: Isabel against Isaiah, 1880 to 2025 0 3k 6k 9k 12k 1880 1900 1920 1940 1960 1980 2000 2020

Isabel Isaiah

Each line is every baby given the name that year, girls and boys added together — the only count that means the same thing for both names. A line breaks where the name fell below five babies in a year — the point at which the SSA stops publishing it — rather than being drawn through a figure nobody published. A single published year in a gap shows as a dot.

Who was ahead

Of the 146 years in which either name was published, Isabel for 102 years and Isaiah for 44 years. The lead changed hands once.

Side by side

  Isabel Isaiah
Total US births 133,977254,710
Most in one year 4,01910,483
Babies in 2025 1,7465,273
Estimated living today 104,000246,000
Median age today 2117
Peak year 20062006
Best rank 87th girls39th boys
Rank in 2025 176th57th
First recorded 18801880
Girls / boys 132,150 / 1,827690 / 254,020

A rank is a position within one sex’s list for one year, so the two rank rows are not subtracted from one another and the winning column is not marked on them. The living figure is a life-table estimate, not a count.

Which name is older

Half of the Isabels alive today are over 21; half the Isaiahs are over 17. That is 4 years between them: two names in use at the same time, worn by two different generations.

Where each one is strongest

How much commoner the name is in that state than it is nationally, from births recorded since 1910.

Both names abroad

Countries whose statistics office publishes both names, so the comparison can be made somewhere other than the United States.

Country Isabel Isaiah
England and Wales 21,1664,967
France 4,0354,820 Isaïah
Ireland 2,02995
Switzerland 883296
New Zealand 543509
Belgium 365439
Scotland 48764
Northern Ireland 11164
Poland 1624

Every spelling a country files separately is added together, over whatever years that country publishes — which is not the same range in any two of them, so read the columns against each other and not the rows.

Compare something else

Related comparisons

Social Security Administration birth records, 1880–2025, public domain. Full histories: Isabel and Isaiah.