How Many People Are Named Kiefer?
An estimated 1,905 people in the United States have the first name Kiefer. It is almost exclusively a male name. The average bearer is 26 years old, and Kiefer peaked in popularity in 1991 with 204 births that year.
Below you will find a full statistical profile of Kiefer 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 Kiefer paired with any surname.
Estimated Living Americans
1,905
About 1 in 179,924 people in the U.S.
Rarity
Rare
Predicted Gender
Male
100.0% confidence
Average Age
26
years old
Peak Year
1991
204 births
Total Registered
1,944
since 1880
Gender Distribution for Kiefer
Kiefer is almost exclusively a male name. Out of 1,944 total births registered, 100.0% were male.
Kiefer as a male name
Ranked #13,302 in 2024
5 male births in 2024
Peak: 1991 (204 births)
Kiefer: Popularity Over Time
SSA records for Kiefer span from the 1980s to the 2020s, covering 5 decades of naming data. The most popular decade for this name was the 1990s, when 969 babies were registered. Kiefer has declined significantly from its peak in the 1990s. Recent registrations are a fraction of what they were at the name's height.
Kiefer by Decade
How has Kiefer 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.
Kiefer by State
Birth registrations for Kiefer span all 23 states and territories in the SSA database. The highest counts are in California, Texas, Illinois. The lowest are in Virginia, South Carolina, Massachusetts. On average, about 26 Kiefers were registered per state.
Kiefer + Last Name Combinations
How many people share a full name with Kiefer as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Kiefer
Other first names starting with K with a similar number of bearers.
Kiefer: Questions and Answers
How many people in the U.S. are named Kiefer?
We estimate approximately 1,905 people named Kiefer 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 179,924 Americans share this first name.
Is Kiefer a common name?
Kiefer is classified as "Rare" and is more popular than 93.5% of all first names in the SSA database. A total of 1,944 births have been registered with this name since 1880.
When was Kiefer most popular?
Kiefer reached peak popularity in 1991, when 204 babies were given this name. The average age of a living person named Kiefer is approximately 26 years old, reflecting when the name was most commonly given.
Is Kiefer a male name?
Kiefer is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Kiefer Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Kiefer Smith, Kiefer Johnson, Kiefer 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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