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Girls' name · 116,168 recorded births

Caitlin

#2,326 in the US in 2025

Where Caitlin stands

United States register · 1880–2025

#2,326girls’ names · US 2025

Caitlin was the 2,326th most registered girls' name in the United States in 2025, on 78 births.

peak 1988 · 7,246188019532025

Its moment was 1988, when 7,246 babies were given it.

SOURCE·US Social Security Administration, national baby-name data·Public domain. retrieved from the Internet Archive's 2026 snapshot of ssa.gov (ssa.gov refuses automated requests); files unmodified. SSA lists a name only if it was given to at least 5 babies of that sex that year.·REVIEWED JUL 2026

#2,326US rank, 2025 (girls)
78US births in 2025
#44its best US rank, in 1988
1988peak year — 7,246 births
112,143US births since 1955
3,589NZ births since 1985
436E&W births, 2019–2025
Saved in this browser only — no account, nothing sent anywhere.

How Caitlin's figures are worked out

  1. Counts come straight from the registrars: the US Social Security Administration (1880–2025) and the New Zealand Department of Internal Affairs (1900–2025). Nothing is scraped from another names site. The SSA files are the agency's own, retrieved from the Internet Archive's 2026 snapshot of ssa.gov (ssa.gov refuses automated requests); files unmodified.
  2. Ranks are computed against every name in that year's file, not just the ones this site publishes pages for — otherwise a rank would flatter every name we happen to list.
  3. The curve is drawn on births per 100,000 of that sex, not raw counts. Raw counts across eras are misleading: far more births were registered in 1957 than in 1890, so a flat count is a falling share.
  4. The reporting floor. Each registrar publishes a name only once it clears a threshold — 5 births of that sex in the US, 10 in New Zealand. Expressed as a share that threshold is itself a curve, and it is drawn on every chart here as the shaded band along the base.
  5. A missing year is a suppressed value, never a zero. Where the registrar published nothing, this site prints “below floor” or “<5”, the curve is broken rather than drawn across the gap, and the missing years are marked on the floor line. Caitlin was under the floor in no year of its US record.
share per 100,000 = births ÷ all births of that sex that year × 100,000
reporting floor (share) = 5 ÷ all births of that sex that year × 100,000

Full methodology →

Caitlin in the United States

188019001920194019601980200020200.0203407
Births per 100,000 of that sex, so eras compare fairly. The shaded band is the 5-birth reporting floor — under it the registrar publishes nothing, so a line that stops has left the record, not fallen to zero. Caitlin in the United States, 1880–2025

Between 2016 and 2025 the name has been falling — down 61% as a share of girls' births.

SOURCE·US Social Security Administration, national baby-name data·Public domain. retrieved from the Internet Archive's 2026 snapshot of ssa.gov (ssa.gov refuses automated requests); files unmodified. SSA lists a name only if it was given to at least 5 babies of that sex that year.·REVIEWED JUL 2026

Caitlin in New Zealand

In New Zealand, Caitlin has been registered 3,589 times since 1985, peaking in 1999 with 230 births. It did not clear the DIA's 10-birth reporting floor in 2025.

1900192019401960198020002020NOT PUBLISHED — BELOW THE 10-BIRTH FLOOR0.06691337
Births per 100,000 of that sex, so eras compare fairly. The shaded band is the 10-birth reporting floor — under it the registrar publishes nothing, so a line that stops has left the record, not fallen to zero. Caitlin in New Zealand, 1900–2025

SOURCE·NZ Department of Internal Affairs, births by first name·CC BY 4.0. DIA lists a name only if it was given to at least 10 babies of that sex that year.·REVIEWED JUL 2026

Caitlin in England & Wales

In England and Wales, Caitlin was registered 436 times between 2019 and 2025, peaking in 2019 with 92 births. It ranked #1,028 for girls in 2025 on 33 births. Across those years it has been falling.

20200.01633
Births per 100,000 of that sex, so eras compare fairly. The shaded band is the 3-birth reporting floor — under it the registrar publishes nothing, so a line that stops has left the record, not fallen to zero. Caitlin in England and Wales, 2019–2025

Seven years is a window, not a history. Unlike the American and New Zealand series this one cannot show you a name's arrival or its long decline — ONS publishes the full list only from 2019. England and Wales only: Scotland and Northern Ireland publish separately and are not counted here.

SOURCE·Office for National Statistics, baby names in England and Wales·Open Government Licence v3.0. ONS redacts any name given to 2 or fewer babies of that sex that year, under s40 of the Freedom of Information Act.·REVIEWED JUL 2026

Decade by decade in the US

US rank and births at each decade markSSA · JUL 2026
YearRankBirths
1960#3,21215
1970#1,154100
1980#365646
1990#507,026
2000#764,102
2010#339945
2020#1,792110

<5 = the SSA published no figure for that year. It is a suppressed value, not a zero.

Where in the United States

The states that registered Caitlin most often since 1955. These are lifetime totals, so they track state population as much as local taste — a name common in Wyoming will never out-count California.

StateBirths
California10,727
New York9,156
Texas6,349
Pennsylvania6,020
Massachusetts5,356
Illinois5,099
Florida4,882
Ohio4,723
New Jersey4,514
Michigan3,602

Questions about Caitlin

How popular is the name Caitlin?

Caitlin ranked #2,326 for girls in the United States in 2025, on 78 births registered with the Social Security Administration.

When was Caitlin most popular?

Caitlin peaked in 1988, when 7,246 babies in the United States were given the name.

Is Caitlin rising or falling?

Measured as a share of all girls' births, Caitlin has been falling between 2016 and 2025 (-61%).

Same sex, peaking within a few years of 1988, at a comparable scale. Not a taste engine — this is arithmetic on peak years, which is why it will occasionally hand you something unfashionable that is nonetheless exactly of the period.

SOURCE·US SSA (1880–2025) + NZ DIA (1900–2025) birth registrations·ranks and shares computed from the source files, see method·REVIEWED JUL 2026

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Amit Sharma

Auckland real-estate agent and marketer. Builds free, sourced data tools.