How Many People Are Named Lonni?
An estimated 351 people in the United States have the first name Lonni. It is predominantly female (95.6%). The average bearer is 53 years old, and Lonni peaked in popularity in 1956 with 18 births that year.
Below you will find a full statistical profile of Lonni as a first name in the United States, including gender data, a year-by-year popularity timeline going back to 1880, a decade breakdown, and state-by-state birth registrations. You can also check how many people share the full name Lonni paired with any surname.
Estimated Living Americans
351
About 1 in 976,508 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
95.6% confidence
Average Age
53
years old
Peak Year
1956
18 births
Total Registered
431
since 1880
Gender Distribution for Lonni
Lonni is predominantly female (95.6%), though 19 male births have been registered. It functions as a unisex name for a small percentage of bearers.
Lonni as a male name
Ranked #3,431 in 1965
7 male births in 1965
Peak: 1964 (7 births)
Lonni as a female name
Ranked #10,710 in 2024
9 female births in 2024
Peak: 1959 (17 births)
Lonni: Popularity Over Time
SSA records for Lonni span from the 1940s to the 2020s, covering 9 decades of naming data. The most popular decade for this name was the 1950s, when 116 babies were registered. Lonni has declined significantly from its peak in the 1950s. Recent registrations are a fraction of what they were at the name's height.
Lonni by Decade
How has Lonni tracked across different eras? The table below groups all SSA birth registrations into 10-year periods, with separate male and female counts. The colored bar shows each decade's share relative to the peak.
Lonni + Last Name Combinations
How many people share a full name with Lonni as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Lonni
Other first names starting with L with a similar number of bearers.
Lonni: Questions and Answers
How many people in the U.S. are named Lonni?
We estimate approximately 351 people named Lonni are alive in the United States today. This is based on SSA birth records from 1880 to 2024, adjusted for mortality using CDC life tables. About 1 in 976,508 Americans share this first name.
Is Lonni a common name?
Lonni is classified as "Very Rare" and is more popular than 80.9% of all first names in the SSA database. A total of 431 births have been registered with this name since 1880.
When was Lonni most popular?
Lonni reached peak popularity in 1956, when 18 babies were given this name. The average age of a living person named Lonni is approximately 53 years old, reflecting when the name was most commonly given.
Is Lonni a female name?
Lonni is predominantly female. 95.6% of people with this name are female. See the gender breakdown above for full details.
How many Lonni Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Lonni Smith, Lonni Johnson, Lonni Williams. You can also search any combination on our homepage.
Where does this data come from?
Our estimates use Social Security Administration birth records (1880 to 2024), adjusted for survival using CDC 2023 life tables broken down by sex. The U.S. population figure (342,754,338) is from the Census Bureau's July 2025 estimate. Full methodology.
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