Kosei vs Koston
Side-by-side comparison of Kosei and Koston - popularity rank, total births, peak decade, and historical trends from Social Security Administration data.
Which name is more popular?
| Metric | Kosei | Koston |
| Current Rank | Unranked | Unranked |
| Total Births (all years) | 90 | 263 |
| Peak Year | 2008 | 2010 |
| Peak Year Births | 9 | 25 |
| Peak Decade | 2010s | 2010s |
| Gender | Boy | Boy |
| First Recorded Year | 2000 | 2002 |
Births by Decade
| Decade | Kosei | Koston |
| 2000s | 40 | 68 |
| 2010s | 43 | 155 |
| 2020s | 7 | 40 |
Recent Annual Births (2014–present)
| Year | Kosei | Koston |
| 2014 | 5 | 10 |
| 2015 | - | 12 |
| 2016 | 5 | 18 |
| 2017 | - | 13 |
| 2018 | 6 | 13 |
| 2019 | 5 | 11 |
| 2020 | 7 | 7 |
| 2021 | - | 10 |
| 2022 | - | 11 |
| 2023 | - | 6 |
| 2025 | - | 6 |