Humanverse

Thaddeus vs Thalia

American parents have registered 26,089 Thaddeuses since 1880, against 16,264 Thalias. But in 2025 it was Thalia that was commoner, 446 babies to 314.

Babies given each name, 1880–2025

Births per year: Thaddeus against Thalia, 1880 to 2025 0 200 400 600 800 1880 1900 1920 1940 1960 1980 2000 2020

Thaddeus Thalia

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 145 years in which either name was published, Thaddeus for 113 years and Thalia for 32 years. The lead changed hands 5 times.

Side by side

  Thaddeus Thalia
Total US births 26,08916,264
Most in one year 416700
Babies in 2025 314446
Estimated living today 18,00015,000
Median age today 3521
Peak year 20161993
Best rank 638th boys363rd girls
Rank in 2025 797th647th
First recorded 18801885
Girls / boys 32 / 26,05716,264 / 0

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 Thaddeuses alive today are over 35; half the Thalias are over 21. That is 14 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 Thaddeus Thalia
France 55,155
England and Wales 1851,679
Ireland 3264
Poland 22

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: Thaddeus and Thalia.