Girls' name · since 1915

Billi

Since 1915, U.S. Social Security records show 1,741 babies named Billi, peaking in 1976. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.

1,741
total births
1915–2020
years on record
1970s
peak decade
37%
born in that decade

Billi sits outside today's top ranks for girls, with 1,741 recorded since 1915.

Billi has 1,741 recorded births among girls since 1915, per the U.S. Social Security Administration, though it falls outside today's most-used girls names, busiest in the 1970s -- see the year-by-year trends, decade totals, and state-level distribution below, all drawn directly from SSA birth-registration files spanning 1915 to 2020.

  • 1,741 total births
  • 1915–2020 years on record
  • 1970s peak decade
  • 37% born in that decade

Data updated Jun 2026

The verdict

1,741 girls have been named Billi since 1915, peaking in the 1970s, last recorded in 2020.

1,741
total births
1915–2020
years on record
1970s
peak decade
37%
born in that decade
1970s
Peak decade

37% of everyone ever named Billi was born in this single decade.

1976
Single peak year

84 babies were named Billi in 1976 - its busiest year on record.

Billi's usage pattern, beyond the headline number

Splitting Billi's full recorded timeline at 1981, 33% of its total births fall in the more recent half of the record versus 67% in the earlier half -- the name was more prevalent in its earlier era than it is today. Its quietest year on record was 1915, with just 5 recorded births -- worth weighing against the 1976 peak of 84 to see the full range of the name's swing in popularity.

Billi at a glance

Last recorded 2020

Total births

1,741

Since 1915

106 years of records

Peak year

1976

84 births that year

Strongest decade: 1970s

Current rank

Unranked

Outside the modern top-1,000

As of 2020

Active since

1915

Recorded for 106 years

Last year on file: 2020

Billi popularity over time - girls

Annual U.S. births registered with the Social Security Administration · 1915–2020

Last recorded 2020
Peak year (1976)
84
Annual births at peak, across 106 years of records
020406080100 191519541964197419841994200420162020 6

Billi popularity over time - boys

5 total births recorded since 2006 (Billi as boys' name)

Unisex variant - 5 births
5 2006 5

Billi by decade

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

1970s was Billi's strongest decade.

643 babies received the name during that ten-year window, about 37% of all-time use.

Billi births by decade

Total births in each ten-year window

births

What this shows Peak: 1970s at 643 births (37% of all-time use).

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

How Billi compares to similarly-sized names

Years in SSA records vs. share of all-time use concentrated in the single peak year, among 15 girls names closest to Billi's total volume

Billi vs 15 similarly-sized girls names

Billi vs 15 similarly-sized girls names Scatter plot of 16 data points. 0%2%4%6%8%10%12% 050100150 New & already peakedOld name, single-era peakNew & still diversifyingLong history, steady all along Years in SSA records % of total births in the single peak year Billi
Billi vs 15 similarly-sized girls names

Billi by state

Where Billi concentrates geographically, total births since 1915

Geographically diffuse
Top 8 states by recorded births for the name Billi
Rank State Visual share Births Share of total
#1 Ohio
73 4.2%
#2 Pennsylvania
53 3.0%
#3 Iowa
20 1.1%
#4 New York
18 1.0%
#5 Indiana
16 0.9%
#6 Michigan
11 0.6%
#7 Texas
10 0.6%
#8 Kentucky
6 0.3%
Ohio share of Billi's total US births 4.2%
Even split

73 of 1,741 births nationwide. Compared to a flat distribution across 12 reporting states.

Billi appears in 12 states. Explore state details →

Frequently Asked Questions

How popular is the name Billi?
1,741 babies have been named Billi since 1915. It was last recorded in 2020. The peak year was 1976 with 84 births.
When was Billi most popular?
Billi was most popular in the 1970s decade with 643 total births. The single peak year was 1976.
Where is Billi most popular?
The top states for the name Billi are Ohio (73 births), Pennsylvania (53 births), Iowa (20 births).
How long has the name Billi been used?
Records for Billi go back to 1915, giving 106 years of history through 2020.
What names are similar to Billi?
Names with a similar sound or spelling include Billie, Billy, Billye, Billiejo, and 4 more. These share a common prefix and are also used for girls.

What to do with Billi's data

  • Billi's decade-level peak was the 1970s (643 total births); usage has since declined to 6 in the 2020s -- if you're weighing a "classic revival" angle, the trend line argues against it.
  • Ohio records the most Billis (73 births) -- see the full state breakdown if geography matters to your decision. Ohio 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 June 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, 1915–2020 (ssa.gov/oact/babynames).

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

Cite this page

NameAlmanac Editorial. "Billi: Baby Name Since 1915 - 1,741 Births, Peak 1976." NameAlmanac. Accessed via https://namealmanac.com/name/billi. 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 Billi 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 June 2026.