How Many People Are Named Irwin?
An estimated 4,716 people in the United States have the first name Irwin. It is almost exclusively a male name. The average bearer is 63 years old, and Irwin peaked in popularity in 1925 with 534 births that year.
Below you will find a full statistical profile of Irwin 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 Irwin paired with any surname.
Estimated Living Americans
4,716
About 1 in 72,679 people in the U.S.
Rarity
Rare
Predicted Gender
Male
99.9% confidence
Average Age
63
years old
Peak Year
1925
534 births
Total Registered
15,946
since 1880
Gender Distribution for Irwin
Irwin is almost exclusively a male name. Out of 15,946 total births registered, 99.9% were male.
Irwin as a male name
Ranked #5,510 in 2024
17 male births in 2024
Peak: 1925 (527 births)
Irwin as a female name
Ranked #4,205 in 1925
7 female births in 1925
Peak: 1925 (7 births)
Irwin: Popularity Over Time
SSA records for Irwin span from the 1880s to the 2020s, covering 15 decades of naming data. The most popular decade for this name was the 1920s, when 4,440 babies were registered. Irwin has declined significantly from its peak in the 1920s. Recent registrations are a fraction of what they were at the name's height.
Irwin by Decade
How has Irwin 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.
Irwin by State
Birth registrations for Irwin span all 30 states and territories in the SSA database. The highest counts are in New York, Pennsylvania, Illinois. The lowest are in Washington, Virginia, Hawaii. On average, about 383 Irwins were registered per state.
Irwin + Last Name Combinations
How many people share a full name with Irwin as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Irwin
Other first names starting with I with a similar number of bearers.
Irwin: Questions and Answers
How many people in the U.S. are named Irwin?
We estimate approximately 4,716 people named Irwin 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 72,679 Americans share this first name.
Is Irwin a common name?
Irwin is classified as "Rare" and is more popular than 96.4% of all first names in the SSA database. A total of 15,946 births have been registered with this name since 1880.
When was Irwin most popular?
Irwin reached peak popularity in 1925, when 534 babies were given this name. The average age of a living person named Irwin is approximately 63 years old, reflecting when the name was most commonly given.
Is Irwin a male name?
Irwin is predominantly male. 99.9% of people with this name are male. See the gender breakdown above for full details.
How many Irwin Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Irwin Smith, Irwin Johnson, Irwin 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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