Humanverse

Thelma vs Theressa

American parents have registered 226,602 Thelmas since 1880, against 2,145 Theressas. Thelma is still ahead, with 29 babies in 2025.

Babies given each name, 1880–2025

Births per year: Thelma against Theressa, 1880 to 2025 0 2k 4k 6k 8k 1880 1900 1920 1940 1960 1980 2000 2020

Thelma Theressa

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

Thelma has been the commoner name in every year either was published, 1880 to 2025. The lead has never changed hands.

The closest they came was 1886, when Thelma had 12 and Theressa had 5.

Side by side

  Thelma Theressa
Total US births 226,6022,145
Most in one year 7,87160
Babies in 2025 29under 5
Estimated living today 41,0001,300
Median age today 7762
Peak year 19211961
Best rank 30th girls1,435th girls
Rank in 2025 4,661stunranked
First recorded 18801886
Girls / boys 225,460 / 1,1422,145 / 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 Thelmas alive today are over 77; half the Theressas are over 62. That is 15 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.

Compare something else

Related comparisons

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