Girls' name · since 1944
Lonni
Since 1944, U.S. Social Security records show 412 babies named Lonni, peaking in 1959. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.
- #13,279 of 72,339
- all-time among girls
- 412
- born since 1944
- 1950s
- peak decade
412 girls have been named Lonni since 1944, though it isn't currently a top-ranked name.
Lonni has 412 recorded births among girls since 1944, per the U.S. Social Security Administration, though it falls outside today's most-used girls names, busiest in the 1950s -- see the year-by-year trends, decade totals, and state-level distribution below, all drawn directly from SSA birth-registration files spanning 1944 to 2024.
- #13,279 of 72,339 all-time among girls
- 412 born since 1944
- 1950s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Lonni ranks #13,279 of 72,339 girls' names by all-time recorded births (highest first). 412 born since 1944, peaking in the 1950s.
- #13,279 of 72,339
- all-time among girls
- 412
- born since 1944
- 1950s
- peak decade
Lonni's 412 recorded births place it above 81.63% of the 72,339 girls names in the full SSA archive.
No state rows cleared SSA’s public reporting threshold for this name.
Lonni's usage pattern, beyond the headline number
Divide Lonni's SSA record in two at 1970 and the more recent half accounts for 45% of all births, the earlier half the remaining 55%, a genuinely balanced usage pattern. Its calmest year was 1946, with only 5 births recorded -- set against the 1959 peak of 17, that's the full swing in one name's fortunes.
Lonni popularity over time - girls
Annual U.S. births registered with the Social Security Administration · 1944–2024
- Peak year (1959)
- 17
- Annual births at peak, across 81 years of records
Lonni popularity over time - boys
19 total births recorded since 1956 (Lonni as boys' name)
Lonni by decade
1950s is the heaviest window (111 births, 27% of the file).
1950s was Lonni's strongest decade.
111 babies received the name during that ten-year window, about 27% of all-time use.
Lonni births by decade
Total births in each ten-year window
- 1940s 38
1940s
38 births
- 1950s
1950s
111 births
- 1960s
1960s
77 births
- 1970s
1970s
69 births
- 1980s
1980s
69 births
- 1990s 12
1990s
12 births
- 2000s 5
2000s
5 births
- 2010s 12
2010s
12 births
- 2020s 19
2020s
19 births
What this shows Peak: 1950s at 111 births (27% of all-time use).
Frequently Asked Questions
How popular is the name Lonni? ▼
Where does Lonni sit in the SSA name archive? ▼
When was Lonni most popular? ▼
How long has the name Lonni been used? ▼
What names are similar to Lonni? ▼
What to do with Lonni's data
- Lonni's decade-level peak was the 1950s (111 total births); usage has since declined to 19 in the 2020s -- if you're weighing a "classic revival" angle, the trend line argues against it.
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Lonni
Nearby Names Like Lonni
Names with a similar sound, spelling, or feel to Lonni
Compare Lonni side by side: Lonni vs London Lonni vs Londyn Lonni vs Lona
Related Names
Names with a similar number of total births
Nationwide names with similar peak year or record span
Two nationwide peer axes for Lonni: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~1959)
Similar record span (~80 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, 1944–2024 (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 Lonni 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.