How Many People Are Named Colin?
An estimated 127,234 people in the United States have the first name Colin. While not in the top 50, it remains a well-known name ranking #425 overall. It is almost exclusively a male name. The average bearer is 28 years old, and Colin peaked in popularity in 2004 with 5,147 births that year.
Below you will find a full statistical profile of Colin as a first name in the United States, including gender data, a year-by-year popularity timeline going back to 1880, a decade breakdown, and state-by-state birth registrations. You can also check how many people share the full name Colin paired with any surname.
Key Insights
- While Colin is overwhelmingly male, 445 female births have been registered with this name since 1880.
Estimated Living Americans
127,234
About 1 in 2,694 people in the U.S.
Rarity
Common
Predicted Gender
Male
99.7% confidence
Average Age
28
years old
Peak Year
2004
5,147 births
Total Registered
133,202
since 1880
Gender Distribution for Colin
Colin is almost exclusively a male name. Out of 133,202 total births registered, 99.7% were male.
Colin as a male name
Ranked #334 in 2024
1,035 male births in 2024
Peak: 2004 (5,122 births)
Colin as a female name
Ranked #15,756 in 2021
5 female births in 2021
Peak: 2004 (25 births)
Colin: Popularity Over Time
SSA records for Colin span from the 1880s to the 2020s, covering 15 decades of naming data. The most popular decade for this name was the 2000s, when 39,197 babies were registered. Colin has declined significantly from its peak in the 2000s. Recent registrations are a fraction of what they were at the name's height.
Colin by Decade
How has Colin tracked across different eras? The table below groups all SSA birth registrations into 10-year periods, with separate male and female counts. The colored bar shows each decade's share relative to the peak.
| Decade | Total | Male | Female | |
|---|---|---|---|---|
| 1880s | 46 | 46 | 0 | |
| 1890s | 30 | 30 | 0 | |
| 1900s | 34 | 34 | 0 | |
| 1910s | 267 | 267 | 0 | |
| 1920s | 412 | 412 | 0 | |
| 1930s | 491 | 491 | 0 | |
| 1940s | 1,919 | 1,919 | 0 | |
| 1950s | 2,459 | 2,459 | 0 | |
| 1960s | 4,188 | 4,166 | 22 | |
| 1970s | 7,559 | 7,488 | 71 | |
| 1980s | 17,823 | 17,673 | 150 | |
| 1990s | 28,362 | 28,256 | 106 | |
| 2000s | 39,197 | 39,128 | 69 | |
| 2010s | 24,732 | 24,715 | 17 | |
| 2020s | 5,683 | 5,673 | 10 | |
Colin by State
Birth registrations for Colin span all 51 states and territories in the SSA database. The highest counts are in California, New York, Pennsylvania. The lowest are in Wyoming, North Dakota, Alaska. On average, about 2,532 Colins were registered per state.
Colin + Last Name Combinations
How many people share a full name with Colin as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Colin
Other first names starting with C with a similar number of bearers.
Colin: Questions and Answers
How many people in the U.S. are named Colin?
We estimate approximately 127,234 people named Colin are alive in the United States today. This is based on SSA birth records from 1880 to 2024, adjusted for mortality using CDC life tables. About 1 in 2,694 Americans share this first name.
Is Colin a common name?
Colin is classified as "Common" and is more popular than 99.6% of all first names in the SSA database. A total of 133,202 births have been registered with this name since 1880.
When was Colin most popular?
Colin reached peak popularity in 2004, when 5,147 babies were given this name. The average age of a living person named Colin is approximately 28 years old, reflecting when the name was most commonly given.
Is Colin a male name?
Colin is predominantly male. 99.7% of people with this name are male. See the gender breakdown above for full details.
How many Colin Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Colin Smith, Colin Johnson, Colin Williams. You can also search any combination on our homepage.
Where does this data come from?
Our estimates use Social Security Administration birth records (1880 to 2024), adjusted for survival using CDC 2023 life tables broken down by sex. The U.S. population figure (342,754,338) is from the Census Bureau's July 2025 estimate. Full methodology.
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