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Girls' name · 479,822 recorded births

Lillian

#57 in the US in 2025

Where Lillian stands

United States register · 1880–2025

#57girls’ names · US 2025

Lillian was the 57th most registered girls' name in the United States in 2025, on 3,966 births.

peak 1920 · 10,049188019532025

Its moment was 1920, when 10,049 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

#57US rank, 2025 (girls)
3,966US births in 2025
#10its best US rank, in 1898
1920peak year — 10,049 births
475,028US births since 1880
2,443NZ births since 1900
922E&W births, 2019–2025
Saved in this browser only — no account, nothing sent anywhere.

How Lillian'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. Lillian 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 →

Lillian in the United States

188019001920194019601980200020200.05911183
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. Lillian in the United States, 1880–2025
girlsboys

Between 2016 and 2025 the name has been falling — down 32% 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

Lillian in New Zealand

In New Zealand, Lillian has been registered 2,443 times since 1900, peaking in 1907 with 55 births. It ranked #265 for girls in 2025 on 15 births.

1900192019401960198020002020NOT PUBLISHED — BELOW THE 10-BIRTH FLOOR0.0303606
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. Lillian 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

Lillian in England & Wales

In England and Wales, Lillian was registered 922 times between 2019 and 2025, peaking in 2019 with 154 births. It ranked #361 for girls in 2025 on 119 births.

20200.02755
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. Lillian 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
1880#32672
1890#191,862
1900#103,414
1910#144,127
1920#1810,049
1930#445,447
1940#972,525
1950#1561,884
1960#2231,433
1970#335782
1980#424510
1990#366722
2000#1292,600
2010#226,957
2020#464,515

<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 Lillian most often since 1880. 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
New York42,524
Pennsylvania25,187
Texas21,512
Illinois20,799
California18,981
Ohio18,491
Michigan15,074
Massachusetts14,623
North Carolina14,198
Georgia12,753

Questions about Lillian

How popular is the name Lillian?

Lillian ranked #57 for girls in the United States in 2025, on 3,966 births registered with the Social Security Administration.

When was Lillian most popular?

Lillian peaked in 1920, when 10,049 babies in the United States were given the name.

Is Lillian rising or falling?

Measured as a share of all girls' births, Lillian has been falling between 2016 and 2025 (-32%).

Same sex, peaking within a few years of 1920, 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.