How Many People Are Named Keir?
An estimated 1,052 people in the United States have the first name Keir. It is predominantly male (94.2%). The average bearer is 36 years old, and Keir peaked in popularity in 1970 with 74 births that year.
Below you will find a full statistical profile of Keir 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 Keir paired with any surname.
Estimated Living Americans
1,052
About 1 in 325,812 people in the U.S.
Rarity
Rare
Predicted Gender
Male
94.2% confidence
Average Age
36
years old
Peak Year
1970
74 births
Total Registered
1,110
since 1880
Gender Distribution for Keir
Keir is predominantly male (94.2%), though 64 female births have been registered. It functions as a unisex name for a small percentage of bearers.
Keir as a male name
Ranked #6,633 in 2024
13 male births in 2024
Peak: 1970 (63 births)
Keir as a female name
Ranked #14,518 in 1994
5 female births in 1994
Peak: 1970 (11 births)
Keir: Popularity Over Time
SSA records for Keir span from the 1960s to the 2020s, covering 7 decades of naming data. The most popular decade for this name was the 1970s, when 321 babies were registered. Keir has declined significantly from its peak in the 1970s. Recent registrations are a fraction of what they were at the name's height.
Keir by Decade
How has Keir 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.
Keir by State
Birth registrations for Keir span all 6 states and territories in the SSA database. The highest counts are in New York, California, New Jersey. The lowest are in Ohio, Illinois, Pennsylvania. On average, about 16 Keirs were registered per state.
Keir + Last Name Combinations
How many people share a full name with Keir as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Keir
Other first names starting with K with a similar number of bearers.
Keir: Questions and Answers
How many people in the U.S. are named Keir?
We estimate approximately 1,052 people named Keir 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 325,812 Americans share this first name.
Is Keir a common name?
Keir is classified as "Rare" and is more popular than 90.4% of all first names in the SSA database. A total of 1,110 births have been registered with this name since 1880.
When was Keir most popular?
Keir reached peak popularity in 1970, when 74 babies were given this name. The average age of a living person named Keir is approximately 36 years old, reflecting when the name was most commonly given.
Is Keir a male name?
Keir is predominantly male. 94.2% of people with this name are male. See the gender breakdown above for full details.
How many Keir Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Keir Smith, Keir Johnson, Keir 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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