Counterfactual
The Parallel Lives of Zaylia and Mackenzie
In 14 girls, Zaylia found its level. 50 years earlier, Mackenzie occupied that same statistical address.
2009–2025
Zaylia
Peak year
2019
Peak births
14
Latest count
14
Status
Stable
Peak generation
Gen Alpha
1973–2025
Mackenzie
Peak year
2001
Peak births
6,934
Latest count
1,343
Status
Declining
Peak generation
Gen Z
Zaylia and Mackenzie peaked in the same cultural weather — the Gen Alpha naming world. They are not replacements; they are siblings separated by 50 years, occupying the same statistical address at different addresses in time.