Girls' name · since 1980

Illia

Illia has 17 recorded births since 1980 in federal Social Security data, most heavily in 2021 -- full year-by-year trend, decade aggregates, and state rankings follow.

17
total births
1980–2023
years on record
2020s
peak decade
71%
born in that decade

17 girls have been named Illia since 1980, though it isn't currently a top-ranked name.

Social Security Administration records show Illia recorded 17 times among girls since 1980, though it doesn't currently rank among the most-used girls names, peaking in the 2020s. This profile derives year-by-year birth trends, decade totals, and state-level distribution directly from SSA birth-registration files spanning 1980 to 2023.

  • 17 total births
  • 1980–2023 years on record
  • 2020s peak decade
  • 71% born in that decade

Data updated Jul 2026

The verdict

17 girls have been named Illia since 1980, peaking in the 2020s, last recorded in 2023.

17
total births
1980–2023
years on record
2020s
peak decade
71%
born in that decade
2020s
Peak decade

71% of everyone ever named Illia was born in this single decade.

2021
Single peak year

6 babies were named Illia in 2021 - its busiest year on record.

Illia's usage pattern, beyond the headline number

Illia splits its recorded history at 2021: 71% of all births land in the more recent half, 29% in the earlier half, a lean toward present-day use rather than a passing spike. The single quietest year was 1980 (5 births) -- compare that against the 2021 peak of 6 for a sense of just how much the name's popularity has swung.

Illia at a glance

Last recorded 2023

Total births

17

Since 1980

44 years of records

Peak year

2021

6 births that year

Strongest decade: 2020s

Current rank

Unranked

Outside the modern top-1,000

As of 2023

Active since

1980

Recorded for 44 years

Last year on file: 2023

Illia popularity over time

Annual U.S. births registered with the Social Security Administration · 1980–2023

Last recorded 2023
Peak year (2021)
6
Annual births at peak, across 44 years of records
4.555.566.5 198020212023 6

Illia by decade

Total births in each ten-year window, peak vs trough at a glance

2020s was Illia's strongest decade.

12 babies received the name during that ten-year window, about 71% of all-time use.

Illia births by decade

Total births in each ten-year window

births

What this shows Peak: 2020s at 12 births (71% of all-time use).

Source U.S. Social Security Administration · Baby Names As of July 2026

Frequently Asked Questions

How popular is the name Illia?
17 babies have been named Illia since 1980. It was last recorded in 2023. The peak year was 2021 with 6 births.
When was Illia most popular?
Illia was most popular in the 2020s decade with 12 total births. The single peak year was 2021.
How long has the name Illia been used?
The SSA has tracked Illia since 1980 -- 44 years through the most recent 2023 data.
What names are similar to Illia?
Names with a similar sound or spelling include Illiana, Illa, Illyana, Illianna, and 4 more. These share a common prefix and are also used for girls.

Data Sources

Data as of July 2026. Source: U.S. Social Security Administration (SSA).

According to the Social Security Administration, this profile draws directly from the agency's public-use baby-name files (updated June 2026). See our methodology for the full extraction, aggregation, and privacy-suppression rules.

Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications, National Data, 1980–2023 (ssa.gov/oact/babynames).

State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).

Cite this page

NameAlmanac Editorial. "Illia: Baby Name Since 1980 - 17 Births, Peak 2021." NameAlmanac. Accessed via https://namealmanac.com/name/illia. Licensed CC BY-SA 4.0.

Name Almanac is rendered directly from the Social Security Administration's public baby-name files, no number is typed in by an editor. This profile for Illia draws directly on SSA national and state-level files, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of July 2026.