Counterfactual

The Parallel Lives of Karissa and Lilly

In 58 girls, Karissa found its level. 50 years earlier, Lilly occupied that same statistical address.

1961–2025

Karissa

peak 1991 2025 18801900192019401960198020002020
Peak year 1991
Peak births 901
Latest count 58
Status Endangered
Peak generation Millennial
1880–2025

Lilly

peak 2010 2025 18801900192019401960198020002020
Peak year 2010
Peak births 2,891
Latest count 1,218
Status Declining
Peak generation Gen Z
Karissa and Lilly peaked in the same cultural weather — the Millennial naming world. They are not replacements; they are siblings separated by 50 years, occupying the same statistical address at different addresses in time.