Total births
904
Girls' name · since 1951
Sonji
Since 1951, U.S. Social Security records show 904 babies named Sonji, peaking in 1966. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.
- 904
- total births
- 1951–1991
- years on record
- 1960s
- peak decade
- 70%
- born in that decade
904 girls have been named Sonji since 1951, though it isn't currently a top-ranked name.
Sonji has 904 recorded births among girls since 1951, per the U.S. Social Security Administration, though it falls outside today's most-used girls names, busiest in the 1960s -- see the year-by-year trends, decade totals, and state-level distribution below, all drawn directly from SSA birth-registration files spanning 1951 to 1991.
- 904 total births
- 1951–1991 years on record
- 1960s peak decade
- 70% born in that decade
Data updated Jul 2026
The verdict
904 girls have been named Sonji since 1951, peaking in the 1960s, last recorded in 1991.
- 904
- total births
- 1951–1991
- years on record
- 1960s
- peak decade
- 70%
- born in that decade
1960s
Peak decade
70% of everyone ever named Sonji was born in this single decade.
1966
Single peak year
225 babies were named Sonji in 1966 - its busiest year on record.
Sonji's usage pattern, beyond the headline number
Divide Sonji's SSA record in two at 1970 and the more recent half accounts for 27% of all births, the earlier half the remaining 73%, consistent with a name more common in the past than in recent years. Its calmest year was 1954, with only 5 births recorded -- set against the 1966 peak of 225, that's the full swing in one name's fortunes.
Sonji at a glance
Last recorded 1991Peak year
1966
Current rank
Unranked
Active since
1951
Sonji popularity over time
Annual U.S. births registered with the Social Security Administration · 1951–1991
- Peak year (1966)
- 225
- Annual births at peak, across 41 years of records
Sonji by decade
Total births in each ten-year window, peak vs trough at a glance
1960s was Sonji's strongest decade.
629 babies received the name during that ten-year window, about 70% of all-time use.
Sonji births by decade
Total births in each ten-year window
- 1950s 29
1950s
29 births
- 1960s
1960s
629 births
- 1970s 211
1970s
211 births
- 1980s 29
1980s
29 births
- 1990s 6
1990s
6 births
What this shows Peak: 1960s at 629 births (70% of all-time use).
How Sonji 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 Sonji's total volume
Sonji vs 15 similarly-sized girls names
Sonji by state
Where Sonji concentrates geographically, total births since 1951
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | Illinois | | 66 | 7.3% |
| #2 | Georgia | | 61 | 6.7% |
| #3 | New York | | 46 | 5.1% |
| #4 | Florida | | 44 | 4.9% |
| #5 | Texas | | 38 | 4.2% |
| #6 | California | | 36 | 4.0% |
| #7 | New Jersey | | 33 | 3.7% |
| #8 | Ohio | | 20 | 2.2% |
Illinois share of Sonji's total US births 7.3%
Even split
66 of 904 births nationwide. Compared to a flat distribution across 19 reporting states.
Sonji appears in 19 states. Explore state details →
Frequently Asked Questions
How popular is the name Sonji? ▼
904 babies have been named Sonji since 1951. It was last recorded in 1991. The peak year was 1966 with 225 births.
When was Sonji most popular? ▼
Sonji was most popular in the 1960s decade with 629 total births. The single peak year was 1966.
Where is Sonji most popular? ▼
The top states for the name Sonji are Illinois (66 births), Georgia (61 births), New York (46 births).
How long has the name Sonji been used? ▼
Sonji has been recorded in Social Security data since 1951, spanning 41 years of data through 1991.
What names are similar to Sonji? ▼
Names with a similar sound or spelling include Sonia, Sonya, Sonja, Sondra, and 4 more. These share a common prefix and are also used for girls.
What to do with Sonji's data
- Sonji's decade-level peak was the 1960s (629 total births); usage has since declined to 6 in the 1990s -- if you're weighing a "classic revival" angle, the trend line argues against it.
- Illinois records the most Sonjis (66 births) -- see the full state breakdown if geography matters to your decision. Illinois 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.
Keep exploring Sonji
Nearby Names Like Sonji
Names with a similar sound, spelling, or feel to Sonji
Sonia Girl
#1352 66,747 births
Sonya Girl
#1914 65,772 births
Sonja Girl
#2933 39,513 births
Sondra Girl
#12228 27,074 births
Sonora Girl
#2899 1,444 births
Compare Sonji side by side: Sonji vs Sonia Sonji vs Sonya Sonji vs Sonja
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, 1951–1991 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Sonji: Baby Name Since 1951 - 904 Births, Peak 1966." NameAlmanac. Accessed via https://namealmanac.com/name/sonji. 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 Sonji 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.