Counterfactual

The Parallel Lives of Yzabella and Mackenzie

In 14 girls, Yzabella found its level. 50 years earlier, Mackenzie occupied that same statistical address.

1999–2025

Yzabella

peak 2010 2025 198020002020
Peak year 2010
Peak births 45
Latest count 14
Status Declining
Peak generation Gen Z
1973–2025

Mackenzie

peak 2001 2025 198020002020
Peak year 2001
Peak births 6,934
Latest count 1,343
Status Declining
Peak generation Gen Z
Yzabella and Mackenzie peaked in the same cultural weather — the Gen Z naming world. They are not replacements; they are siblings separated by 50 years, occupying the same statistical address at different addresses in time.