Counterfactual

The Parallel Lives of Jalyssa and Savannah

In 17 girls, Jalyssa found its level. 50 years earlier, Savannah occupied that same statistical address.

1987–2025

Jalyssa

peak 2007 2025 18801900192019401960198020002020
Peak year 2007
Peak births 105
Latest count 17
Status Declining
Peak generation Gen Z
1880–2025

Savannah

peak 2000 2025 18801900192019401960198020002020
Peak year 2000
Peak births 7,100
Latest count 2,141
Status Declining
Peak generation Gen Z
Jalyssa and Savannah 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.