# Cassidy name report

Canonical URL: https://mybabyeta.com/babynames/name/f/cassidy
Data source: U.S. Social Security Administration public baby-name records
Latest year: 2025

## Summary
Cassidy ranked #541 officially for girls in 2025. After combined spelling groups, it ranked #545.

## Official spelling
- Rank: #541
- Birth count: 558
- Rate per 10,000: 3.47

## Combined spelling group
- Group display: Cassidy
- Rank: #545
- Birth count: 558
- Rate per 10,000: 3.47
- Official count multiplier: 1.00x

## Practical popularity
- Expected per class of 25: 0.00
- Expected per grade of 100: 0.02
- Expected per school of 300: 0.05
- Duplicate chance in grade of 100: 1.7%

## Trend
- Label: past peak
- Peak rate year: 1999
- Best rank year: 1999
- Latest rate as percent of peak: 17.8%

## Spelling components
- Cassidy: 558 births

## Methodology notes
- Official SSA ranks treat each spelling separately.
- Combined ranks group spelling variants and recompute ranks by sex.
- State combined counts may be lower bounds when rare state spellings are suppressed.
- Full methodology: https://mybabyeta.com/babynames/methodology