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2025 data, released 8 May 2026

Alethea

Alethea was the 3030th most popular name for girls in 2025, given to 54 babies. Its best year was 1973, when it ranked 522nd with 322 babies. Over the last ten years it has moved up 742 places. More babies were named Alethea in the 1970s than in any other decade.

Meaning Not yet researched how we research meanings

Rank in 2025
#3,030 girls, down 347 places since 2020
Babies in 2025
54girls
Girls and boys
Almost always a girl’s name2021–2025
Peak year
1973322 babies
Total since 1880
4,968babies recorded

Alethea popularity since 1880

0125250375500 1900192019401960198020002020
Girls Babies per year, US, from Social Security records. Years with fewer than 5 babies show as zero.
YearRank (girls)Babies (girls)
2025#3,03054
2020#2,68362
2010#5,42425
2000#3,98431
1990#2,80041
1980#1,54276
1970#1,26387
1960#1,18884
1950#1,60234
1940#2,29913
1930#2,84610
1920#1,37733
1910#1,6379
1900——
1890——
1880——

How popular is Alethea, counting every spelling?

Alethea has no other common spelling that sounds the same.

How many kids will share the name Alethea?

54 of the 3,606,400 babies born in the US in 2025 were named Alethea (0.02 per 1,000 births). For a girl named Alethea born in 2025, the chance that another child with the same name is in a class of 20 children the same age is under 1 in 50. If every grade liked the name as much as the 2025 babies do, only about one elementary school in 155 (of 430 pupils) would have a child named Alethea.

Chance of another Alethea in a class of 20under 1 in 50US, born 2025
Most likely inPennsylvaniaunder 1 in 50 (2024)

Shares of all registered births (NCHS); classes assumed to be children born the same year. How we estimate this.

How old are people named Alethea?

About 4,100 people born in the US named Alethea are alive today, with a median age of 49; half are between 25 and 57. That makes Alethea mostly worn by adults in their thirties to fifties.

0–910–1920–2930–3940–4950–5960–6970–7980–8990+
Estimated people alive in the US with the name, by age, mid-2026. The darker bar holds the median age.

Babies given the name each year (SSA) times the share of that birth year still alive (SSA life tables). Counts people born in the US only. Method.

Alethea by state

How common Alethea was among girls born in each state in 2021–2025. In 45 states fewer than five girls a year got the name, too few for SSA to publish, so those states show as zero.

Alaska: fewer than 5 a yearAK–Maine: fewer than 5 a yearME–Wisconsin: fewer than 5 a yearWI–Vermont: fewer than 5 a yearVT–New Hampshire: fewer than 5 a yearNH–Washington: fewer than 5 a yearWA–Idaho: fewer than 5 a yearID–Montana: fewer than 5 a yearMT–North Dakota: fewer than 5 a yearND–Minnesota: fewer than 5 a yearMN–Illinois: fewer than 5 a yearIL–Michigan: fewer than 5 a yearMI–New York: 0.04 per 1,000 babiesNY0.04Massachusetts: fewer than 5 a yearMA–Oregon: fewer than 5 a yearOR–Nevada: fewer than 5 a yearNV–Wyoming: fewer than 5 a yearWY–South Dakota: fewer than 5 a yearSD–Iowa: fewer than 5 a yearIA–Indiana: fewer than 5 a yearIN–Ohio: fewer than 5 a yearOH–Pennsylvania: 0.02 per 1,000 babiesPA0.02New Jersey: fewer than 5 a yearNJ–Connecticut: fewer than 5 a yearCT–Rhode Island: fewer than 5 a yearRI–California: 0.05 per 1,000 babiesCA0.05Utah: fewer than 5 a yearUT–Colorado: fewer than 5 a yearCO–Nebraska: fewer than 5 a yearNE–Missouri: fewer than 5 a yearMO–Kentucky: fewer than 5 a yearKY–West Virginia: fewer than 5 a yearWV–Virginia: fewer than 5 a yearVA–Maryland: fewer than 5 a yearMD–Delaware: fewer than 5 a yearDE–Arizona: 0.04 per 1,000 babiesAZ0.04New Mexico: fewer than 5 a yearNM–Kansas: fewer than 5 a yearKS–Arkansas: fewer than 5 a yearAR–Tennessee: fewer than 5 a yearTN–North Carolina: fewer than 5 a yearNC–South Carolina: fewer than 5 a yearSC–District of Columbia: fewer than 5 a yearDC–Oklahoma: fewer than 5 a yearOK–Louisiana: fewer than 5 a yearLA–Mississippi: fewer than 5 a yearMS–Alabama: fewer than 5 a yearAL–Georgia: fewer than 5 a yearGA–Hawaii: fewer than 5 a yearHI–Texas: 0.04 per 1,000 babiesTX0.04Florida: 0.02 per 1,000 babiesFL0.02
Babies per 1,000 of the same sex, Alethea, girls, 2021–2025. Darker means more common.

Names with a similar history

These names rose and fell in step with Alethea: their share of US girls followed the most similar curve since 1880. If you like Alethea, they share its era and feel.

Questions about the name Alethea

How popular is the name Alethea?

Alethea was the 3030th most popular name for girls in 2025, given to 54 babies. Its best year was 1973, when it ranked 522nd with 322 babies. Over the last ten years it has moved up 742 places. More babies were named Alethea in the 1970s than in any other decade.

Is Alethea a boy or girl name?

In 2021–2025, almost always a girl’s name given the name Alethea in the US.

Where is Alethea most popular?

In 2021–2025, Alethea was most common in California (0.05 per 1,000 girls), followed by Texas and New York.