How Many People Are Named Sir?
An estimated 2,068 people in the United States have the first name Sir. It is almost exclusively a male name. The average bearer is 19 years old, and Sir peaked in popularity in 2021 with 123 births that year.
Below you will find a full statistical profile of Sir 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 Sir paired with any surname.
Estimated Living Americans
2,068
About 1 in 165,742 people in the U.S.
Rarity
Rare
Predicted Gender
Male
100.0% confidence
Average Age
19
years old
Peak Year
2021
123 births
Total Registered
2,106
since 1880
Gender Distribution for Sir
Sir is almost exclusively a male name. Out of 2,106 total births registered, 100.0% were male.
Sir as a male name
Ranked #1,962 in 2024
80 male births in 2024
Peak: 2021 (123 births)
Sir: Popularity Over Time
SSA records for Sir span from the 1960s to the 2020s, covering 7 decades of naming data. The most popular decade for this name was the 2010s, when 613 babies were registered. Sir remains highly popular today, with recent registration numbers near its historical peak.
Sir by Decade
How has Sir 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.
Sir by State
Birth registrations for Sir span all 14 states and territories in the SSA database. The highest counts are in California, Texas, Florida. The lowest are in Michigan, Maryland, Virginia. On average, about 49 Sirs were registered per state.
Sir + Last Name Combinations
How many people share a full name with Sir as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Sir
Other first names starting with S with a similar number of bearers.
Sir: Questions and Answers
How many people in the U.S. are named Sir?
We estimate approximately 2,068 people named Sir 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 165,742 Americans share this first name.
Is Sir a common name?
Sir is classified as "Rare" and is more popular than 93.8% of all first names in the SSA database. A total of 2,106 births have been registered with this name since 1880.
When was Sir most popular?
Sir reached peak popularity in 2021, when 123 babies were given this name. The average age of a living person named Sir is approximately 19 years old, reflecting when the name was most commonly given.
Is Sir a male name?
Sir is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Sir Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Sir Smith, Sir Johnson, Sir 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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