How Many People Are Named Calahan?
An estimated 262 people in the United States have the first name Calahan. It is almost exclusively a male name. The average bearer is 16 years old, and Calahan peaked in popularity in 2020 with 19 births that year.
Below you will find a full statistical profile of Calahan 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 Calahan paired with any surname.
Estimated Living Americans
262
About 1 in 1,308,223 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
16
years old
Peak Year
2020
19 births
Total Registered
265
since 1880
Gender Distribution for Calahan
Calahan is almost exclusively a male name. Out of 265 total births registered, 100.0% were male.
Calahan as a male name
Ranked #6,208 in 2024
14 male births in 2024
Peak: 2020 (19 births)
Calahan: Popularity Over Time
SSA records for Calahan span from the 1980s to the 2020s, covering 5 decades of naming data. The most popular decade for this name was the 2000s, when 76 babies were registered. Calahan remains highly popular today, with recent registration numbers near its historical peak.
Calahan by Decade
How has Calahan 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.
Calahan + Last Name Combinations
How many people share a full name with Calahan as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Calahan
Other first names starting with C with a similar number of bearers.
Calahan: Questions and Answers
How many people in the U.S. are named Calahan?
We estimate approximately 262 people named Calahan 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 1,308,223 Americans share this first name.
Is Calahan a common name?
Calahan is classified as "Very Rare" and is more popular than 77.7% of all first names in the SSA database. A total of 265 births have been registered with this name since 1880.
When was Calahan most popular?
Calahan reached peak popularity in 2020, when 19 babies were given this name. The average age of a living person named Calahan is approximately 16 years old, reflecting when the name was most commonly given.
Is Calahan a male name?
Calahan is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Calahan Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Calahan Smith, Calahan Johnson, Calahan 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.
Search for a full name combination
How Many of Me