Lon vs Lonzo
American parents have registered 9,856 Lons since 1880, against 3,961 Lonzos. But in 2025 it was Lonzo that was commoner, 25 babies to fewer than five.
Babies given each name, 1880–2025
Lon Lonzo
Each line is every baby given the name that year, girls and boys added together — the only count that means the same thing for both names. A line breaks where the name fell below five babies in a year — the point at which the SSA stops publishing it — rather than being drawn through a figure nobody published. A single published year in a gap shows as a dot.
Who was ahead
Of the 145 years in which either name was published, Lon for 108 years and Lonzo for 37 years. The lead changed hands 25 times.
- 1880–1904 Lon ahead
- 1905–1917 Lonzo ahead, apart from one short spell
- 1929–2002 Lon ahead, apart from 2 short spells
- 2007–2025 Lonzo ahead, apart from one short spell
18 shorter spells of a year or two are folded into the spans above rather than listed separately.
Side by side
| Lon | Lonzo | |
|---|---|---|
| Total US births | 9,856 | 3,961 |
| Most in one year | 274 | 85 |
| Babies in 2025 | under 5 | 25 |
| Estimated living today | 5,300 | 1,500 |
| Median age today | 64 | 57 |
| Peak year | 1948 | 1919 |
| Best rank | 411th boys | 673rd boys |
| Rank in 2025 | unranked | 4,139th |
| First recorded | 1880 | 1880 |
| Girls / boys | 20 / 9,836 | 0 / 3,961 |
A rank is a position within one sex’s list for one year, so the two rank rows are not subtracted from one another and the winning column is not marked on them. The living figure is a life-table estimate, not a count.
Which name is older
Half of the Lons alive today are over 64; half the Lonzos are over 57. That is 7 years between them: two names in use at the same time, worn by two different generations.
Where each one is strongest
- Lon Minnesota (3.2×), Iowa (3.1×), Wisconsin (2.6×)
- Lonzo Mississippi (21.3×), Arkansas (11.1×), Kentucky (7.9×)
How much commoner the name is in that state than it is nationally, from births recorded since 1910.
Compare something else
Related comparisons
Social Security Administration birth records, 1880–2025, public domain. Full histories: Lon and Lonzo.