How Many People Are Named Guillermo?

Curious about how common the name Guillermo 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 31,881
Popularity Level Very Rare
Probability 1 in 10,351 people

What Does This Mean?

Based on aggregated statistical analysis, approximately 31,881 people in the United States are estimated to share the name Guillermo.

To make this easier to understand, this means that about 1 out of every 10,351 people has this name.

This classification places Guillermo 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 Guillermo

Name Rarity and Probability

Rarity: Very Rare

Probability: 1 in 10,351 people

Total Count

31,881

Top 25%

Gender Distribution

Male: 31,807
Female: 74

Predicted Gender

Female

Age Information

Average Age: 39

  • Young (<30) 13,155
  • Adult (30–60) 13,234
  • Old (>60) 5,492

Additional Characteristics

Same Character %: 22.2%

Starts with "A" %: 0.0%

Year-Wise Usages

State-Wise Usages

  • Alabama 5
  • Arkansas 15
  • Arizona 1,497
  • California 11,039
  • Colorado 297
  • Connecticut 31
  • Florida 1,411
  • Georgia 297
  • Iowa 5
  • Idaho 5
  • Illinois 1,325
  • Indiana 50
  • Kansas 61
  • Massachusetts 44
  • Maryland 28
  • Michigan 79
  • Minnesota 10
  • Missouri 7
  • North Carolina 237
  • Nebraska 11
  • New Jersey 476
  • New Mexico 448
  • Nevada 197
  • New York 1,495
  • Ohio 10
  • Oklahoma 78
  • Oregon 131
  • Pennsylvania 60
  • South Carolina 19
  • Tennessee 38
  • Texas 8,848
  • Utah 65
  • Virginia 106
  • Washington 289
  • Wisconsin 67
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 Guillermo?

Approximately 31,881 people in the United States are estimated to share the name Guillermo, based on statistical analysis.

Is Guillermo a rare name?

Guillermo 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.