Girls' name · since 1919

Lilley

Since 1919, U.S. Social Security records show 436 babies named Lilley, peaking in 2008. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.

436
total births
1919–2025
years on record
2010s
peak decade
45%
born in that decade

Lilley is not among the current top-ranked girls names; 436 have been recorded since 1919.

Social Security Administration records show Lilley recorded 436 times among girls since 1919, though it doesn't currently rank among the most-used girls names, peaking in the 2010s. This profile derives year-by-year birth trends, decade totals, and state-level distribution directly from SSA birth-registration files spanning 1919 to 2025.

  • 436 total births
  • 1919–2025 years on record
  • 2010s peak decade
  • 45% born in that decade

Data updated Jul 2026

The verdict

436 girls have been named Lilley since 1919, peaking in the 2010s, last recorded in 2025.

436
total births
1919–2025
years on record
2010s
peak decade
45%
born in that decade
2010s
Peak decade

45% of everyone ever named Lilley was born in this single decade.

2008
Single peak year

33 babies were named Lilley in 2008 - its busiest year on record.

Lilley's usage pattern, beyond the headline number

Divide Lilley's SSA record in two at 2011 and the more recent half accounts for 50% of all births, the earlier half the remaining 50%, a genuinely balanced usage pattern. Its calmest year was 1919, with only 5 births recorded -- set against the 2008 peak of 33, that's the full swing in one name's fortunes.

Lilley at a glance

Last recorded 2025

Total births

436

Since 1919

107 years of records

Peak year

2008

33 births that year

Strongest decade: 2010s

Current rank

Unranked

Outside the modern top-1,000

As of 2025

Active since

1919

Recorded for 107 years

Last year on file: 2025

Lilley popularity over time

Annual U.S. births registered with the Social Security Administration · 1919–2025

Last recorded 2025
Peak year (2008)
33
Annual births at peak, across 107 years of records
010203040 19192002200620102014201820222025 6

Lilley by decade

Total births in each ten-year window, peak vs trough at a glance

2010s was Lilley's strongest decade.

195 babies received the name during that ten-year window, about 45% of all-time use.

Lilley births by decade

Total births in each ten-year window

births

What this shows Peak: 2010s at 195 births (45% of all-time use).

Source U.S. Social Security Administration · Baby Names As of July 2026

Lilley by state

Where Lilley concentrates geographically, total births since 1919

Geographically diffuse
Top 1 states by recorded births for the name Lilley
Rank State Visual share Births Share of total
#1 Michigan
8 1.8%
Michigan share of Lilley's total US births 1.8%

8 of 436 births nationwide.

Frequently Asked Questions

How popular is the name Lilley?
Lilley has been given to 436 babies in the U.S. since 1919, according to SSA data. Its last appearance in the data was 2025. 33 babies were born in 2008, its single highest year.
When was Lilley most popular?
Lilley was most popular in the 2010s decade with 195 total births. The single peak year was 2008.
Where is Lilley most popular?
The top states for the name Lilley are Michigan (8 births).
How long has the name Lilley been used?
Lilley has been recorded in Social Security data since 1919, spanning 107 years of data through 2025.
What names are similar to Lilley?
Names with a similar sound or spelling include Lillian, Lily, Lillie, Lila, and 4 more. These share a common prefix and are also used for girls.

What to do with Lilley's data

  • Lilley's decade-level peak was the 2010s (195 total births); usage has since declined to 48 in the 2020s -- if you're weighing a "classic revival" angle, the trend line argues against it.
  • Michigan records the most Lilleys (8 births) -- see the full state breakdown if geography matters to your decision. Michigan 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.

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, 1919–2025 (ssa.gov/oact/babynames).

State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).

Cite this page

NameAlmanac Editorial. "Lilley: Baby Name Since 1919 - 436 Births, Peak 2008." NameAlmanac. Accessed via https://namealmanac.com/name/lilley. 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 Lilley 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.