Total births
44
Unisex name · since 1971
Billyjo
Billyjo has 44 recorded births since 1971 in federal Social Security data, most heavily in 1977 -- full year-by-year trend, decade aggregates, and state rankings follow.
- 44
- total births
- 1971–1980
- years on record
- 1970s
- peak decade
- 84%
- born in that decade
44 girls have been named Billyjo since 1971, though it isn't currently a top-ranked name.
Social Security Administration records show Billyjo recorded 44 times among girls since 1971, though it doesn't currently rank among the most-used girls names, peaking in the 1970s. This profile derives year-by-year birth trends, decade totals, and state-level distribution directly from SSA birth-registration files spanning 1971 to 1980.
- 44 total births
- 1971–1980 years on record
- 1970s peak decade
- 84% born in that decade
Data updated Jul 2026
The verdict
44 girls have been named Billyjo since 1971, peaking in the 1970s, last recorded in 1980.
- 44
- total births
- 1971–1980
- years on record
- 1970s
- peak decade
- 84%
- born in that decade
1970s
Peak decade
84% of everyone ever named Billyjo was born in this single decade.
1977
Single peak year
11 babies were named Billyjo in 1977 - its busiest year on record.
Billyjo's usage pattern, beyond the headline number
Splitting Billyjo's full recorded timeline at 1977, 55% of its total births fall in the more recent half of the record versus 45% in the earlier half -- a fairly even split across the full record. Its quietest year on record was 1975, with just 5 recorded births -- worth weighing against the 1977 peak of 11 to see the full range of the name's swing in popularity.
Billyjo at a glance
Last recorded 1980Peak year
1977
Current rank
Unranked
Active since
1971
Billyjo popularity over time - girls
Annual U.S. births registered with the Social Security Administration · 1971–1980
- Peak year (1977)
- 11
- Annual births at peak, across 10 years of records
Billyjo popularity over time - boys
34 total births recorded since 1971 (Billyjo as boys' name)
Billyjo by decade
Total births in each ten-year window, peak vs trough at a glance
1970s was Billyjo's strongest decade.
37 babies received the name during that ten-year window, about 84% of all-time use.
Billyjo births by decade
Total births in each ten-year window
- 1970s
1970s
37 births
- 1980s 7
1980s
7 births
What this shows Peak: 1970s at 37 births (84% of all-time use).
Frequently Asked Questions
How popular is the name Billyjo? ▼
44 babies have been named Billyjo since 1971. It was last recorded in 1980. The peak year was 1977 with 11 births.
When was Billyjo most popular? ▼
Billyjo was most popular in the 1970s decade with 37 total births. The single peak year was 1977.
Is Billyjo a unisex name? ▼
Yes, Billyjo is used for both boys and girls. As a girl's name it has 44 births, and as a boy's name it has 34 births.
How long has the name Billyjo been used? ▼
Billyjo has been recorded in Social Security data since 1971, spanning 10 years of data through 1980.
What names are similar to Billyjo? ▼
Names with a similar sound or spelling include Billie, Billy, Billye, Billi, and 4 more. These share a common prefix and are also used for girls.
What to do with Billyjo's data
- Billyjo's decade-level peak was the 1970s (37 total births); usage has since declined to 7 in the 1980s -- if you're weighing a "classic revival" angle, the trend line argues against it.
- 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.
Keep exploring Billyjo
Nearby Names Like Billyjo
Names with a similar sound, spelling, or feel to Billyjo
Billie Girl
#695 103,663 births
Billy Girl
#7989 5,432 births
Billye Girl
3,360 births
Billi Girl
1,741 births
Billiejo Girl
#11265 1,464 births
Compare Billyjo side by side: Billyjo vs Billie Billyjo vs Billy Billyjo vs Billye
Related Names
Names with a similar number of total births
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, 1971–1980 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Billyjo: Baby Name Since 1971 - 44 Births, Peak 1977." NameAlmanac. Accessed via https://namealmanac.com/name/billyjo. 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 Billyjo 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.