How Many People Are Named Reilly?

Curious about how common the name Reilly is? Our tool provides a statistical estimate of how many people in the United States share this name, along with an easy-to-understand breakdown of its popularity and rarity.

Estimated Count 9,977
Popularity Level Very Rare
Probability 1 in 33,076 people

What Does This Mean?

Based on aggregated statistical analysis, approximately 9,977 people in the United States are estimated to share the name Reilly.

To make this easier to understand, this means that about 1 out of every 33,076 people has this name.

This classification places Reilly in the Very Rare category compared to other names nationwide.

How This Name Tool Works

Our system analyzes large-scale name frequency patterns and applies statistical modeling to estimate how often a name appears within the U.S. population.

When you search for a name, the tool processes aggregated historical patterns and probability calculations to deliver a clear and privacy-friendly estimate — without accessing private records or personal data.

All results shown are estimates and should be interpreted as statistical approximations, not exact counts.

Detailed Statistics for Reilly

Name Rarity and Probability

Rarity: Very Rare

Probability: 1 in 33,076 people

Total Count

9,977

Rare

Gender Distribution

Male: 4,510
Female: 5,467

Predicted Gender

Female

Age Information

Average Age: 22

  • Young (<30) 8,577
  • Adult (30–60) 1,387
  • Old (>60) 13

Additional Characteristics

Same Character %: 33.3%

Starts with "A" %: 0.0%

Year-Wise Usages

State-Wise Usages

  • Alabama 5
  • Arizona 68
  • California 815
  • Colorado 130
  • Connecticut 123
  • DC 6
  • Florida 356
  • Georgia 133
  • Iowa 21
  • Illinois 413
  • Indiana 83
  • Kansas 10
  • Kentucky 5
  • Louisiana 5
  • Massachusetts 263
  • Maryland 103
  • Michigan 170
  • Minnesota 76
  • Missouri 87
  • Montana 5
  • North Carolina 233
  • Nebraska 5
  • New Hampshire 23
  • New Jersey 335
  • Nevada 5
  • New York 672
  • Ohio 331
  • Oregon 52
  • Pennsylvania 599
  • South Carolina 54
  • Tennessee 50
  • Texas 390
  • Utah 21
  • Virginia 240
  • Washington 222
  • Wisconsin 95
Disclaimer: Results shown are statistical estimates based on aggregated data and modeling. They are not exact counts of individuals.

Frequently Asked Questions

How many people are named Reilly?

Approximately 9,977 people in the United States are estimated to share the name Reilly, based on statistical analysis.

Is Reilly a rare name?

Reilly is considered Very Rare when compared to other names in the U.S. population.

Are these numbers exact?

No. Exact full-name counts are not publicly available. This tool provides statistical estimates designed to be informative and easy to understand.