# Isac name report

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

## Summary
Isac ranked #4600 officially for boys in 2025. After combined spelling groups, it ranked #49.

## Official spelling
- Rank: #4600
- Birth count: 22
- Rate per 10,000: 0.13

## Combined spelling group
- Group display: Isaac
- Rank: #49
- Birth count: 5,980
- Rate per 10,000: 35.01
- Official count multiplier: 271.82x

## Practical popularity
- Expected per class of 25: 0.05
- Expected per grade of 100: 0.18
- Expected per school of 300: 0.54
- Duplicate chance in grade of 100: 16.4%

## Trend
- Label: mixed / watch
- Peak rate year: 2013
- Best rank year: 2013
- Latest rate as percent of peak: 64.8%

## Spelling components
- Isaac: 5,953 births
- Isac: 22 births
- Isaack: 5 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