Apolonia vs Apolonio
American parents have registered 1,470 Apolonios since 1880, against 1,084 Apolonias. But in 2025 it was Apolonia that was commoner, 15 babies to fewer than five.
Babies given each name, 1880–2025
Apolonia Apolonio
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 126 years in which either name was published, Apolonio for 79 years and Apolonia for 47 years. The lead changed hands 20 times.
- 1885–1919 Apolonia ahead
- 1920–1985 Apolonio ahead, apart from 2 short spells
- 1986–1992 Apolonia ahead, apart from one short spell
- 1995–2008 Apolonio ahead, apart from one short spell
- 2009–2025 Apolonia ahead, apart from 2 short spells
10 shorter spells of a year or two are folded into the spans above rather than listed separately.
Side by side
| Apolonia | Apolonio | |
|---|---|---|
| Total US births | 1,084 | 1,470 |
| Most in one year | 25 | 33 |
| Babies in 2025 | 15 | under 5 |
| Estimated living today | 590 | 830 |
| Median age today | 30 | 48 |
| Peak year | 1990 | 1925 |
| Best rank | 4,003rd girls | 1,246th boys |
| Rank in 2025 | 7,133rd | unranked |
| First recorded | 1885 | 1909 |
| Girls / boys | 1,084 / 0 | 0 / 1,470 |
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 Apolonios alive today are over 48; half the Apolonias are over 30. That is 18 years between them: two names in use at the same time, worn by two different generations.
Where each one is strongest
- Apolonia Texas (10.6×), California (1.6×)
- Apolonio Texas (10.9×), California (1.4×)
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: Apolonia and Apolonio.