Girls' name · since 1965

Billijo

Billijo has 183 recorded births since 1965 in federal Social Security data, most heavily in 1975 -- full year-by-year trend, decade aggregates, and state rankings follow.

183
total births
1965–2004
years on record
1970s
peak decade
58%
born in that decade

Billijo is not among the current top-ranked girls names; 183 have been recorded since 1965.

Social Security Administration records show Billijo recorded 183 times among girls since 1965, 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 1965 to 2004.

  • 183 total births
  • 1965–2004 years on record
  • 1970s peak decade
  • 58% born in that decade

Data updated Jul 2026

The verdict

183 girls have been named Billijo since 1965, peaking in the 1970s, last recorded in 2004.

183
total births
1965–2004
years on record
1970s
peak decade
58%
born in that decade
1970s
Peak decade

58% of everyone ever named Billijo was born in this single decade.

1975
Single peak year

16 babies were named Billijo in 1975 - its busiest year on record.

Billijo's usage pattern, beyond the headline number

Billijo splits its recorded history at 1977: 45% of all births land in the more recent half, 55% in the earlier half, an evenly balanced pattern over time. The single quietest year was 1966 (5 births) -- compare that against the 1975 peak of 16 for a sense of just how much the name's popularity has swung.

Billijo at a glance

Last recorded 2004

Total births

183

Since 1965

40 years of records

Peak year

1975

16 births that year

Strongest decade: 1970s

Current rank

Unranked

Outside the modern top-1,000

As of 2004

Active since

1965

Recorded for 40 years

Last year on file: 2004

Billijo popularity over time

Annual U.S. births registered with the Social Security Administration · 1965–2004

Last recorded 2004
Peak year (1975)
16
Annual births at peak, across 40 years of records
05101520 19651969197219751978198119852004 5

Billijo by decade

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

1970s was Billijo's strongest decade.

106 babies received the name during that ten-year window, about 58% of all-time use.

Billijo births by decade

Total births in each ten-year window

births

What this shows Peak: 1970s at 106 births (58% of all-time use).

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

Frequently Asked Questions

How popular is the name Billijo?
Billijo has been given to 183 babies in the U.S. since 1965, according to SSA data. Its last appearance in the data was 2004. 16 babies were born in 1975, its single highest year.
When was Billijo most popular?
Billijo was most popular in the 1970s decade with 106 total births. The single peak year was 1975.
How long has the name Billijo been used?
Billijo has been recorded in Social Security data since 1965, spanning 40 years of data through 2004.
What names are similar to Billijo?
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 Billijo's data

  • Billijo's decade-level peak was the 1970s (106 total births); usage has since declined to 5 in the 2000s -- 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.

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, 1965–2004 (ssa.gov/oact/babynames).

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

Cite this page

NameAlmanac Editorial. "Billijo: Baby Name Since 1965 - 183 Births, Peak 1975." NameAlmanac. Accessed via https://namealmanac.com/name/billijo. 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 Billijo 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.