Total births
412
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.
- #10392
- among girls today
- 412
- born since 1944
- 1950s
- peak decade
- 41%
- more common than other girls
Lonni currently ranks #10392 among girls' names in America, with 412 babies recorded since 1944.
Lonni has 412 recorded births among girls since 1944, per the U.S. Social Security Administration, ranked #10392 as of the latest data, more common than 41% of girls, 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.
- #10392 among girls today
- 412 born since 1944
- 1950s peak decade
- 41% more common than other girls
Data updated Jun 2026
The verdict
Lonni is currently the #10392 girls' name in America, more common than 41% of girls - 412 born since 1944, peaking in the 1950s.
- #10392
- among girls today
- 412
- born since 1944
- 1950s
- peak decade
- 41%
- more common than other girls
Lonni vs. every other girls name in current SSA rankings
#10392
of 17,726 girls in use
More common than 41% of names given to girls today.
1950s
Peak decade
27% of everyone ever named Lonni was born in this single decade.
1959
Single peak year
17 babies were named Lonni in 1959 - its busiest year on record.
How Lonni compares
412 Top 48% higher than 52% of 17,726 names currently given to girls
Based on all-time total births among currently-ranked girls names. Names with fewer occurrences are grouped into wider buckets on the right.
Source U.S. Social Security Administration, national baby name data
How the numbers stack up
Lonni's all-time total is 8% above the median girls name, and Olivia still leads by a wide margin.
| Metric | Lonni | Median girls name (Emerly) | #1 girls name (Olivia) |
|---|---|---|---|
| All-time total births | 412 | 382 | 567,345 |
| Peak-year births | 17 | 48 | 19,840 |
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 at a glance
Outside the top 1,000Peak year
1959
Current rank
#10,392
Active since
1944
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
Total births in each ten-year window, peak vs trough at a glance
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? ▼
Lonni has been given to 412 babies in the U.S. since 1944, according to SSA data. Among girls, it ranks #10392 as of the latest data. 17 babies were born in 1959, its single highest year.
When was Lonni most popular? ▼
Lonni was most popular in the 1950s decade with 111 total births. The single peak year was 1959.
How long has the name Lonni been used? ▼
The SSA has tracked Lonni since 1944 -- 81 years through the most recent 2024 data.
What names are similar to Lonni? ▼
Names with a similar sound or spelling include London, Londyn, Lona, Lonnie, and 4 more. These share a common prefix and are also used for girls.
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.
- 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 Lonni
Nearby Names Like Lonni
Names with a similar sound, spelling, or feel to Lonni
London Girl
#355 44,455 births
Londyn Girl
#305 27,245 births
Lona Girl
#7968 10,907 births
Lonnie Girl
#5300 6,995 births
Loni Girl
#7314 3,770 births
Compare Lonni side by side: Lonni vs London Lonni vs Londyn Lonni vs Lona
Related Names
Names with a similar popularity rank to Lonni
Bambi #10391
5,261 births · Peak 1979
Rosamaria #10393
2,000 births · Peak 1981
Rosalita #10390
325 births · Peak 1944
Traci #10394
52,173 births · Peak 1970
Paulett #10389
443 births · Peak 1949
Jocelyne #10395
4,228 births · Peak 1996
Karalyn #10388
1,601 births · Peak 1996
Riki #10396
1,193 births · Peak 1981
Data Sources
Data as of June 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).
Cite this page
NameAlmanac Editorial. "Lonni: #10392 Girls' Name - 412 Births, Peak 1959." NameAlmanac. Accessed via https://namealmanac.com/name/lonni. 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 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 June 2026.