Girls' name · peaked in 1911

Thelma name popularity since 1925

110,735 babies born in the US from 1925 to 2025 were named Thelma (99.4% girls, 0.6% boys). Half of them were born in 1935 or earlier, so the typical Thelma is about 91 years old in 2026. Thelma peaked in 1911 as the #27 name for girls, and it was outside the top 1,000 in 2025.

Key facts

US babies since 1925
110,735
Named Thelma, 1925–2025
Peak year
1911
#27 for girls that year
Typical age
About 91
Median birth year 1935
In 2025
Not top 1,000
#4,745 for girls in 2025
Girls / boys
99.4% girls
110,121 girls · 614 boys
Most popular in
West Virginia
3.35× its national share

Peak year is the year Thelma made up the largest share of US girls, in records going back to 1880. Typical age is based on births from 1925 on, not on who is living today.

Thelma births per year, 1925–2025

Babies named Thelma per year, 1925–2025

The biggest year on this chart was 1925. Measured as a share of all babies, Thelma peaked earlier, in 1911.

  • Steepest fall: Between 1965 and 1970, Thelma's share of baby girls fell by 52%, from 1 in 3,050 to 1 in 6,380.

Shaded on the chart. This compares Thelma's share of all US girls five years apart, counting only years with at least 100 babies named Thelma.

Decade by decade

Babies named Thelma in each decade, and its rank among girls' names in the middle year of the decade (1935, 1945 … 2025).

Decade GirlsBoys Rank
1925–29 31,165169 –
1930s 36,254276 #76
1940s 20,229104 #131
1950s 11,77636 #246
1960s 5,89429 #380
1970s 2,1580 #737
1980s 1,1700 #1,322
1990s 6870 #1,817
2000s 3790 #3,579
2010s 2390 #5,114
2020–25 1700 #4,745

Ranks count every name given to at least 5 girls that year, so they can go past 1,000.

Generation fingerprint

55.3% of babies named Thelma from 1925 to 2025 were born in the Silent Generation years (1928–1945). The full split by generation:

Thelma by generation Greatest Generation born 1925–27 17.9% Silent Generation born 1928–45 55.3% Baby Boomers born 1946–64 20.5% Gen X born 1965–80 4.0% Millennials born 1981–96 1.4% Gen Z born 1997–2012 0.5% Gen Alpha born 2013–25 0.3%

Where Thelma is most popular

The index compares Thelma's share of babies in each state with its share nationwide, 1925–2025 (1.50× = 50% more common). States with at least 300 babies named Thelma.

StateIndexBabies
West Virginia3.35×3,202
Mississippi3.07×4,037
South Carolina2.95×4,487
Kentucky2.89×5,261
Arkansas2.72×3,040

Names with a similar story

Of the other 1999 names on this site, these six had the share of babies closest in shape to Thelma's from 1925 to 2025, however common each one got. Each line is scaled to its own high; the dashed line is Thelma.

Names from the same era

Other common names that peaked within two years of Thelma (1911).

Source: U.S. Social Security Administration national and state baby-name data, which covers names given to at least 5 babies of one sex in a year. About the data