How Many People Are Named Karoline?
An estimated 3,497 people in the United States have the first name Karoline. It is almost exclusively a female name. The average bearer is 24 years old, and Karoline peaked in popularity in 2017 with 139 births that year.
Below you will find a full statistical profile of Karoline 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 Karoline paired with any surname.
Estimated Living Americans
3,497
About 1 in 98,014 people in the U.S.
Rarity
Rare
Predicted Gender
Female
100.0% confidence
Average Age
24
years old
Peak Year
2017
139 births
Total Registered
3,740
since 1880
Gender Distribution for Karoline
Karoline is almost exclusively a female name. Out of 3,740 total births registered, 100.0% were female.
Karoline as a female name
Ranked #1,946 in 2024
102 female births in 2024
Peak: 2017 (139 births)
Karoline: Popularity Over Time
SSA records for Karoline span from the 1910s to the 2020s, covering 12 decades of naming data. The most popular decade for this name was the 2010s, when 1,115 babies were registered. While Karoline is less common than at its peak in the 2010s, it remains a well-established name with steady registrations.
Karoline by Decade
How has Karoline 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.
Karoline by State
Birth registrations for Karoline span all 20 states and territories in the SSA database. The highest counts are in Texas, California, Florida. The lowest are in Michigan, Massachusetts, Virginia. On average, about 66 Karolines were registered per state.
Karoline + Last Name Combinations
How many people share a full name with Karoline as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Karoline
Other first names starting with K with a similar number of bearers.
Karoline: Questions and Answers
How many people in the U.S. are named Karoline?
We estimate approximately 3,497 people named Karoline 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 98,014 Americans share this first name.
Is Karoline a common name?
Karoline is classified as "Rare" and is more popular than 95.6% of all first names in the SSA database. A total of 3,740 births have been registered with this name since 1880.
When was Karoline most popular?
Karoline reached peak popularity in 2017, when 139 babies were given this name. The average age of a living person named Karoline is approximately 24 years old, reflecting when the name was most commonly given.
Is Karoline a female name?
Karoline is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Karoline Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Karoline Smith, Karoline Johnson, Karoline 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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