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.
- #8,049 of 72,339
- all-time among girls
- 904
- born since 1951
- 1960s
- peak 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.
- #8,049 of 72,339 all-time among girls
- 904 born since 1951
- 1960s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Sonji ranks #8,049 of 72,339 girls' names by all-time recorded births (highest first). 904 born since 1951, peaking in the 1960s.
- #8,049 of 72,339
- all-time among girls
- 904
- born since 1951
- 1960s
- peak decade
Sonji's 904 recorded births place it above 88.87% of the 72,339 girls names in the full SSA archive.
19 jurisdictions carry state-level records, led by Illinois.
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 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
1960s is the heaviest window (629 births, 70% of the file).
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 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% |
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? ▼
Where does Sonji sit in the SSA name archive? ▼
When was Sonji most popular? ▼
Where is Sonji most popular? ▼
How long has the name Sonji been used? ▼
What names are similar to Sonji? ▼
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
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
Compare Sonji side by side: Sonji vs Sonia Sonji vs Sonya Sonji vs Sonja
Related Names
Names with a similar number of total births
Nationwide names with similar peak year or record span
Two nationwide peer axes for Sonji: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~1966)
Similar record span (~40 yrs)
Peak year is the single SSA year with the most births for that name; record span is first-to-latest year in the national files, not a recommendation or shared origin claim.
Data Sources
Data as of August 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).
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 August 2026.