How old is someone named Althea?
The average Althea is 49 years old.
Half of all living Altheas are between 21 and 70. The average sits between a large older group and a younger one, so many Altheas are much older than 49.
When was Althea popular?
Althea has never really gone out of style. Parents have chosen it every year for more than a century; its busiest year was 1956.
Popular names of 1956 · The most popular names of the 1950s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1900s | 496 | 0 |
| 1910s | 2,014 | 0 |
| 1920s | 2,596 | under 100 |
| 1930s | 1,472 | 300 |
| 1940s | 1,275 | 740 |
| 1950s | 3,015 | 2,300 |
| 1960s | 1,791 | 1,600 |
| 1970s | 1,002 | 940 |
| 1980s | 592 | 570 |
| 1990s | 492 | 480 |
| 2000s | 627 | 620 |
| 2010s | 1,160 | 1,200 |
| 2020s | 974 | 970 |
How many Altheas are still alive?
About 9,700 Altheas are alive in the US today. That's 54% of the roughly 18,000 babies named Althea since 1880.
Roughly half of all Altheas ever born are still living.
What generation is the name Althea?
About one in three living Altheas are Baby Boomers, born between 1946 and 1964.
Is Althea an old name?
Yes. Althea is older than 76 in 100 names on AgeByName.
Looking ahead: if babies keep getting the name at today's pace, the typical Althea will be 36 in 2056, so its average age will actually fall, as the youngest Altheas make up more of the total.
Is Althea a boy or girl name?
Almost entirely girls: over 99.9% of living Altheas are women.
Names the same age as Althea
NAME TWIN
Althea's name twin is Roslyn. Of all 3,713 names on AgeByName, Roslyn's age curve is the closest match to Althea's: 89% alike.
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Questions about the name Althea
How old is the average Althea?
The average Althea in the US is 49 years old. The median is 57, so half are older and half younger.
How many people are named Althea?
About 9,700 Altheas are alive in the US today, out of roughly 18,000 babies given the name since 1880.
When was the name Althea most popular?
In 1956, when about 390 baby girls were named Althea.
Is Althea a Boomer name?
Partly. Baby Boomers are the largest group, about 36% of living Altheas, but the name spans several generations.
Estimates from Social Security Administration baby-name records (births 1880–2025) and SSA cohort life tables (2026 Trustees Report). Updated each spring. How we calculate this