Total births
156
Girls' name · since 1910
Irja
156 babies named Irja in U.S. Social Security records since 1910, with the highest year being 1918. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
- 156
- total births
- 1910–1930
- years on record
- 1910s
- peak decade
- 76%
- born in that decade
Irja sits outside today's top ranks for girls, with 156 recorded since 1910.
Social Security Administration records show Irja recorded 156 times among girls since 1910, though it doesn't currently rank among the most-used girls names, peaking in the 1910s. This profile derives year-by-year birth trends, decade totals, and state-level distribution directly from SSA birth-registration files spanning 1910 to 1930.
- 156 total births
- 1910–1930 years on record
- 1910s peak decade
- 76% born in that decade
Data updated Jun 2026
The verdict
156 girls have been named Irja since 1910, peaking in the 1910s, last recorded in 1930.
- 156
- total births
- 1910–1930
- years on record
- 1910s
- peak decade
- 76%
- born in that decade
1910s
Peak decade
76% of everyone ever named Irja was born in this single decade.
1918
Single peak year
20 babies were named Irja in 1918 - its busiest year on record.
Irja's usage pattern, beyond the headline number
Irja splits its recorded history at 1917: 57% of all births land in the more recent half, 43% in the earlier half, an evenly balanced pattern over time. The single quietest year was 1911 (5 births) -- compare that against the 1918 peak of 20 for a sense of just how much the name's popularity has swung.
Irja at a glance
Last recorded 1930Peak year
1918
Current rank
Unranked
Active since
1910
Irja popularity over time
Annual U.S. births registered with the Social Security Administration · 1910–1930
- Peak year (1918)
- 20
- Annual births at peak, across 21 years of records
Irja by decade
Total births in each ten-year window, peak vs trough at a glance
1910s was Irja's strongest decade.
119 babies received the name during that ten-year window, about 76% of all-time use.
Irja births by decade
Total births in each ten-year window
- 1910s
1910s
119 births
- 1920s 32
1920s
32 births
- 1930s 5
1930s
5 births
What this shows Peak: 1910s at 119 births (76% of all-time use).
Irja by state
Where Irja concentrates geographically, total births since 1910
Frequently Asked Questions
How popular is the name Irja? ▼
Irja has been given to 156 babies in the U.S. since 1910, according to SSA data. Its last appearance in the data was 1930. 20 babies were born in 1918, its single highest year.
When was Irja most popular? ▼
Irja was most popular in the 1910s decade with 119 total births. The single peak year was 1918.
Where is Irja most popular? ▼
The top states for the name Irja are Minnesota (9 births), Michigan (5 births).
How long has the name Irja been used? ▼
Records for Irja go back to 1910, giving 21 years of history through 1930.
What to do with Irja's data
- Irja's decade-level peak was the 1910s (119 total births); usage has since declined to 5 in the 1930s -- if you're weighing a "classic revival" angle, the trend line argues against it.
- Minnesota records the most Irjas (9 births) -- see the full state breakdown if geography matters to your decision. Minnesota names
- Weighing it against an alternative? Put two names side by side. Compare names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Irja
Related Names
Names with a similar number of total births
Data Sources
Data as of June 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, 1910–1930 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Irja: Baby Name Since 1910 - 156 Births, Peak 1918." NameAlmanac. Accessed via https://namealmanac.com/name/irja. 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 Irja 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 June 2026.