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Hilaria

#13,833 in 2025Girls' name

Feminine form of Hilarius

Hilaria has been given to 982 babies in the U.S. since 1887. In 2025 it ranked #13,833 of 17,293 girls’ names in use. Its peak year was 1930, with 28 recorded.

Babies named Hilaria, 2025

1 in 553,000

Hilaria over time, 1880–2025

Girls
010203018801900192019401960198020002020

Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Hilaria: meaning, origin, and history

Feminine form of Hilarius

Deeper origin not confirmed in the cited records

What Hilaria means

Hilaria is a feminine form of Hilarius.

Documented naming usage and pronunciation

Hilaria is used in Ancient Roman and Spanish.

Another recorded pronunciation is /i.ˈla.ɾja/ for Hilaria.

Origin, language, and formation

Hilaria is used in Spanish.

Related names and everyday forms

Related names include Hilarius and Hilario.

Pronunciation and spelling

In Spanish, Hilaria is pronounced /iˈlaɾja/.

American usage and historical context

In the United States, 982 girls were recorded with the name Hilaria between 1887 and 2025. Its highest annual count was 28 in 1930; its best national rank was #1,212 in 1887.

Over 5 years its rank fell, from #11,473 in 2020 to #13,833 in 2025.

Sources & methodologyReferences, data & attribution

Meaning, origin, and language notes draw on the references below.

American popularity figures use published Social Security Administration records for this exact spelling. Counts below five for a name, sex, and year are omitted.

Wiktionary material is available under CC BY-SA 4.0.

How common is Hilaria?

Everything below is computed from the 2025 data — the most recent year available.

Among all babies, 2025
1 in 553,000
6 of 3,315,165 births
Among girls only
1 in 268,000
<0.01% of girls
Rank, 2025
#13,833
of 17,293 girls’ names in use
Coin-flip room size
382,984 kids
Even odds of a second one

Where Hilaria sits on the popularity scale

Rarest published (5 a year)#1 — Olivia (13,544)

Chance at least one other child shares the name

If the other children were drawn at random from the 2025 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.

Class of 20Under 1%
Class of 30Under 1%
Grade of 100Under 1%
School of 500Under 1%

Put another way: gather 382,984 children born in 2025 and it's an even bet that one of them is another Hilaria. In a class of 30 the chance is Under 1%.

When Hilarias were born

Half of everyone ever recorded as Hilaria was born before 1937 — so the typical Hilaria is around 88 today.

Median birth year
1937
About 88 years old
Biggest decade
1920s
20.7% of all use
Born in the last 25 years
11.0%
Spread across generations
Recorded since 1950
367
People you could plausibly meet
Choose a decade

1920s — 20.7% of all recorded uses (203).

Is Hilaria rising or falling?

Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.

Rank vs 1 year ago
+278
Places climbed
Rank vs 5 years ago
−2,360
Places dropped
Rank vs 10 years ago
—
Not ranked then
Births vs 10 years ago
—
Not published both years
Share of its own peak
21.4%
Peak was 1930 (28)
Years since peak
95
Years
Year-to-year steadiness
Volatile
39.6% average annual change
Best rank ever
#1,212
1887

Spellings of Hilaria

Hilaria is not the most common spelling — Hilary is, with 78.8% against Hilaria's 3.2%.

Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.

Where Hilaria is used

Across 1910–2025, Hilaria was most concentrated in Texas — about 1 in 25,000 girls, against 1 in 61,375 across all states with data. It was least common in California (1 in —).

04 per 100,000

Most concentrated

  1. 1Texas1 in 25,000
  2. 2California1 in —

Shading is the share of that state's recorded girls given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings. Hilaria has too little recent state data to map, so this covers all years from 1910.

Hilaria around the world

Where Hilaria ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.

  • France
    1905–2020
    #6,136
    in 2020

Popularity data from Institut national de la statistique et des études économiques. INSEE data under Licence Ouverte / Etalab 2.0.

Hilaria by the numbers

The raw record for each sex the name is used for.

As a girl's name

Rank in 2025
#13,833
Trend vs 5 yrs ago
Down 2,360
Best rank ever
#1,212
1887
Peak year
1930
28 that year
First recorded
1887
Last recorded
2025
All-time count
982
Count in 2025
6

Names similar to Hilaria

Matched on shared beginnings and endings, similar length, and comparable popularity.

JameriaHilianaZykeriaZamariaTamariaXandriaNigeriaAundriaHilarieAstoriaJamariaJazariaNazariaKambriaLazariaHilleryDamariaZahriaLamariaZhariaVitoriaHildredJabriaDemaria

Sibling names for Hilaria

Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.

Explore around Hilaria

Top names of 1930, Hilaria's peak yearThe 1930s in fullOther names that peaked in 1887Girls' names starting with H