How Many People Are Named Colbi?
An estimated 628 people in the United States have the first name Colbi. It is used for both genders, with 89.2% female. The average bearer is 21 years old, and Colbi peaked in popularity in 2011 with 28 births that year.
Below you will find a full statistical profile of Colbi 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 Colbi paired with any surname.
Estimated Living Americans
628
About 1 in 545,787 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
89.2% confidence
Average Age
21
years old
Peak Year
2011
28 births
Total Registered
640
since 1880
Gender Distribution for Colbi
Colbi is predominantly female (89.2%), though 69 male births have been registered. It functions as a unisex name for a small percentage of bearers.
Colbi as a male name
Ranked #12,487 in 2021
5 male births in 2021
Peak: 2000 (7 births)
Colbi as a female name
Ranked #9,662 in 2024
10 female births in 2024
Peak: 2010 (25 births)
Colbi: Popularity Over Time
SSA records for Colbi span from the 1980s to the 2020s, covering 5 decades of naming data. The most popular decade for this name was the 2000s, when 183 babies were registered. While Colbi is less common than at its peak in the 2000s, it remains a well-established name with steady registrations.
Colbi by Decade
How has Colbi 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.
Colbi by State
Colbi + Last Name Combinations
How many people share a full name with Colbi as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Colbi
Other first names starting with C with a similar number of bearers.
Colbi: Questions and Answers
How many people in the U.S. are named Colbi?
We estimate approximately 628 people named Colbi 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 545,787 Americans share this first name.
Is Colbi a common name?
Colbi is classified as "Very Rare" and is more popular than 86.7% of all first names in the SSA database. A total of 640 births have been registered with this name since 1880.
When was Colbi most popular?
Colbi reached peak popularity in 2011, when 28 babies were given this name. The average age of a living person named Colbi is approximately 21 years old, reflecting when the name was most commonly given.
Is Colbi a female name?
Colbi is predominantly female. 89.2% of people with this name are female. See the gender breakdown above for full details.
How many Colbi Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Colbi Smith, Colbi Johnson, Colbi 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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