Total births
21
Unisex name · since 1954
In
21 babies named In in U.S. Social Security records since 1954, with the highest year being 1956. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
- 21
- total births
- 1954–1982
- years on record
- 1950s
- peak decade
- 76%
- born in that decade
In sits outside today's top ranks for girls, with 21 recorded since 1954.
Social Security Administration records show In recorded 21 times among girls since 1954, though it doesn't currently rank among the most-used girls names, peaking in the 1950s. This profile derives year-by-year birth trends, decade totals, and state-level distribution directly from SSA birth-registration files spanning 1954 to 1982.
- 21 total births
- 1954–1982 years on record
- 1950s peak decade
- 76% born in that decade
Data updated Jul 2026
The verdict
21 girls have been named In since 1954, peaking in the 1950s, last recorded in 1982.
- 21
- total births
- 1954–1982
- years on record
- 1950s
- peak decade
- 76%
- born in that decade
1950s
Peak decade
76% of everyone ever named In was born in this single decade.
1956
Single peak year
6 babies were named In in 1956 - its busiest year on record.
In's usage pattern, beyond the headline number
Divide In's SSA record in two at 1958 and the more recent half accounts for 48% of all births, the earlier half the remaining 52%, a genuinely balanced usage pattern. Its calmest year was 1954, with only 5 births recorded -- set against the 1956 peak of 6, that's the full swing in one name's fortunes.
In at a glance
Last recorded 1982Peak year
1956
Current rank
Unranked
Active since
1954
In popularity over time - girls
Annual U.S. births registered with the Social Security Administration · 1954–1982
- Peak year (1956)
- 6
- Annual births at peak, across 29 years of records
In popularity over time - boys
5 total births recorded since 1992 (In as boys' name)
In by decade
Total births in each ten-year window, peak vs trough at a glance
1950s was In's strongest decade.
16 babies received the name during that ten-year window, about 76% of all-time use.
In births by decade
Total births in each ten-year window
- 1950s
1950s
16 births
- 1980s 5
1980s
5 births
What this shows Peak: 1950s at 16 births (76% of all-time use).
In by state
Where In concentrates geographically, total births since 1954
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | Kansas | | 11 | 52.4% |
Kansas share of In's total US births 52.4%
11 of 21 births nationwide.
Frequently Asked Questions
How popular is the name In? ▼
Since 1954, Social Security records show 21 babies named In. The most recent recorded year was 1982. Its busiest year on record was 1956, with 6 births.
When was In most popular? ▼
In was most popular in the 1950s decade with 16 total births. The single peak year was 1956.
Where is In most popular? ▼
The top states for the name In are Kansas (11 births).
Is In a unisex name? ▼
Yes, In is used for both boys and girls. As a girl's name it has 21 births, and as a boy's name it has 5 births.
How long has the name In been used? ▼
The SSA has tracked In since 1954 -- 29 years through the most recent 1982 data.
What names are similar to In? ▼
Names with a similar sound or spelling include Inez, Ina, Ingrid, India, and 4 more. These share a common prefix and are also used for girls.
What to do with In's data
- In's decade-level peak was the 1950s (16 total births); usage has since declined to 5 in the 1980s -- if you're weighing a "classic revival" angle, the trend line argues against it.
- Kansas records the most Ins (11 births) -- see the full state breakdown if geography matters to your decision. Kansas 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 In
Nearby Names Like In
Names with a similar sound, spelling, or feel to In
Inez Girl
#1414 68,353 births
Ina Girl
#2637 34,074 births
Ingrid Girl
#1091 27,747 births
India Girl
#1351 23,990 births
Ines Girl
#1279 6,751 births
Compare In side by side: In vs Inez In vs Ina In vs Ingrid
Related Names
Names with a similar number of total births
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, 1954–1982 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "In: Baby Name Since 1954 - 21 Births, Peak 1956." NameAlmanac. Accessed via https://namealmanac.com/name/in. 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 In 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.