How old is someone named Lonnie?
The average Lonnie is 59 years old.
Half of all living Lonnies are between 50 and 73.
When was Lonnie popular?
Lonnie was at its most popular after World War II. Parents have been moving away from it for decades, and 109 babies were named Lonnie in 2025.
Popular names of 1947 · The most popular names of the 1940s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1900s | 1,938 | 0 |
| 1910s | 5,095 | 0 |
| 1920s | 7,799 | under 100 |
| 1930s | 8,868 | 1,200 |
| 1940s | 17,099 | 7,700 |
| 1950s | 20,347 | 14,000 |
| 1960s | 15,887 | 13,000 |
| 1970s | 10,078 | 9,000 |
| 1980s | 5,430 | 5,100 |
| 1990s | 3,031 | 2,900 |
| 2000s | 1,647 | 1,600 |
| 2010s | 1,200 | 1,200 |
| 2020s | 663 | 660 |
How many Lonnies are still alive?
About 56,000 Lonnies are alive in the US today. That's 55% of the roughly 100,000 babies named Lonnie since 1880.
Roughly half of all Lonnies ever born are still living.
What generation is the name Lonnie?
About two in five living Lonnies are Baby Boomers, born between 1946 and 1964.
Is Lonnie an old name?
Yes. Lonnie is older than 89 in 100 names on AgeByName.
Looking ahead: if babies keep getting the name at today's pace, the typical Lonnie will be 64 in 2056, so the name is aging slowly.
Is Lonnie a boy or girl name?
Mostly a boy's name: 94% of living Lonnies are men, and 6% are women.
The women average 62 and the men 59.
Names the same age as Lonnie
NAME TWIN
Lonnie's name twin is Donnie. Of all 3,713 names on AgeByName, Donnie's age curve is the closest match to Lonnie's: 94% alike.
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Questions about the name Lonnie
How old is the average Lonnie?
The average Lonnie in the US is 59 years old. The median is 62, so half are older and half younger.
How many people are named Lonnie?
About 56,000 Lonnies are alive in the US today, out of roughly 100,000 babies given the name since 1880.
When was the name Lonnie most popular?
In 1947, when about 2,200 baby boys were named Lonnie.
Is Lonnie a Boomer name?
Partly. Baby Boomers are the largest group, about 44% of living Lonnies, but the name spans several generations.
Estimates from Social Security Administration baby-name records (births 1880–2025) and SSA cohort life tables (2026 Trustees Report). Updated each spring. How we calculate this