Counterfactual

The Parallel Lives of Isaura and Mackenzie

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

1916–2025

Isaura

peak 2007 2025 192019401960198020002020
Peak year 2007
Peak births 63
Latest count 14
Status Stable
Peak generation Gen Z
1973–2025

Mackenzie

peak 2001 2025 192019401960198020002020
Peak year 2001
Peak births 6,934
Latest count 1,343
Status Declining
Peak generation Gen Z
Isaura 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.