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Girls' name · 4,099 recorded births

Milly

#1,777 in the US in 2025

Where Milly stands

United States register · 1880–2025

#1,777girls’ names · US 2025

Milly was the 1,777th most registered girls' name in the United States in 2025, on 113 births.

peak 2014 · 129BELOW THE 5-BIRTH FLOOR — NOT PUBLISHED188019532025

Its moment was 2014, when 129 babies were given it. In 19 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

#1,777US rank, 2025 (girls)
113US births in 2025
#686its best US rank, in 1884
2014peak year — 129 births
3,347US births since 1884
331NZ births since 1999
421E&W births, 2019–2025
Saved in this browser only — no account, nothing sent anywhere.

How Milly'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. Milly was under the floor in 19 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 →

Milly in the United States

18801900192019401960198020002020NOT PUBLISHED — BELOW THE 5-BIRTH FLOOR0.03.97.8
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. Milly in the United States, 1880–2025

Between 2016 and 2025 the name has been steady.

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

Milly in New Zealand

In New Zealand, Milly has been registered 331 times since 1999, peaking in 2010 with 25 births. It did not clear the DIA's 10-birth reporting floor in 2025.

1900192019401960198020002020NOT PUBLISHED — BELOW THE 10-BIRTH FLOOR0.071143
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. Milly 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

Milly in England & Wales

In England and Wales, Milly was registered 421 times between 2019 and 2025, peaking in 2019 with 78 births. It ranked #792 for girls in 2025 on 46 births. Across those years it has been falling.

20200.01428
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. Milly 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
1890#1,3385
1900below floor<5
1910#1,7738
1920#2,17217
1930#2,42513
1940#2,9639
1950#3,23511
1960#2,72920
1970#7,0706
1980#6,7899
1990#7,88010
2000#3,98331
2010#2,07795
2020#1,872103

<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 Milly most often since 1884. These are lifetime totals, so they track state population as much as local taste — a name common in Wyoming will never out-count California.

Questions about Milly

How popular is the name Milly?

Milly ranked #1,777 for girls in the United States in 2025, on 113 births registered with the Social Security Administration.

When was Milly most popular?

Milly peaked in 2014, when 129 babies in the United States were given the name.

Is Milly rising or falling?

Measured as a share of all girls' births, Milly has been steady between 2016 and 2025.

Same sex, peaking within a few years of 2014, 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.