One subject, in depth · bridged to FuelFacts
NameCurve
Boys' name · 432,983 recorded births

Sean

#489 in the US in 2025

Where Sean stands

United States register · 1880–2025

#489boys’ names · US 2025

Sean was the 489th most registered boys' name in the United States in 2025, on 616 births.

peak 1990 · 12,018188019532025

Its moment was 1990, when 12,018 babies were given it. In 4 of the years between, the name fell under the 5-birth floor and the registrar published nothing — those years are the marks along the base of the chart, not gaps in the name's use.

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

#489US rank, 2025 (boys)
616US births in 2025
#33its best US rank, in 1972
1990peak year — 12,018 births
423,637US births since 1925
5,844NZ births since 1953
533E&W births, 2019–2025
Saved in this browser only — no account, nothing sent anywhere.

How Sean'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. Sean was under the floor in 4 years 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 →

Sean in the United States

188019001920194019601980200020200.0320640
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. Sean in the United States, 1880–2025
boysgirls

Between 2016 and 2025 the name has been falling — down 59% as a share of boys' 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

Sean in New Zealand

In New Zealand, Sean has been registered 5,844 times since 1953, peaking in 1993 with 196 births. It did not clear the DIA's 10-birth reporting floor in 2025.

1900192019401960198020002020NOT PUBLISHED — BELOW THE 10-BIRTH FLOOR0.0423845
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. Sean 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

Sean in England & Wales

In England and Wales, Sean was registered 533 times between 2019 and 2025, peaking in 2019 with 106 births. It ranked #615 for boys in 2025 on 61 births. Across those years it has been falling.

20200.01735
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. Sean 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
1930#3,2897
1940#1,10735
1950#535162
1960#2021,421
1970#3710,341
1980#487,596
1990#3712,018
2000#577,316
2010#1023,743
2020#334976

<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 Sean most often since 1925. 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
California57,727
New York41,741
Pennsylvania25,539
Texas21,279
Illinois20,678
Florida19,783
New Jersey19,597
Massachusetts19,527
Ohio17,768
Michigan14,442

Questions about Sean

How popular is the name Sean?

Sean ranked #489 for boys in the United States in 2025, on 616 births registered with the Social Security Administration.

When was Sean most popular?

Sean peaked in 1990, when 12,018 babies in the United States were given the name.

Is Sean rising or falling?

Measured as a share of all boys' births, Sean has been falling between 2016 and 2025 (-59%).

Same sex, peaking within a few years of 1990, 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

See what every site in this family answers

Published by

Amit Sharma

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