How Many People Are Named Izaak?
An estimated 2,804 people in the United States have the first name Izaak. It is almost exclusively a male name. The average bearer is 19 years old, and Izaak peaked in popularity in 2011 with 138 births that year.
Below you will find a full statistical profile of Izaak 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 Izaak paired with any surname.
Estimated Living Americans
2,804
About 1 in 122,238 people in the U.S.
Rarity
Rare
Predicted Gender
Male
100.0% confidence
Average Age
19
years old
Peak Year
2011
138 births
Total Registered
2,846
since 1880
Gender Distribution for Izaak
Izaak is almost exclusively a male name. Out of 2,846 total births registered, 100.0% were male.
Izaak as a male name
Ranked #2,506 in 2024
54 male births in 2024
Peak: 2011 (138 births)
Izaak: Popularity Over Time
SSA records for Izaak span from the 1970s to the 2020s, covering 6 decades of naming data. The most popular decade for this name was the 2000s, when 1,048 babies were registered. Izaak has declined significantly from its peak in the 2000s. Recent registrations are a fraction of what they were at the name's height.
Izaak by Decade
How has Izaak 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.
Izaak by State
Birth registrations for Izaak span all 23 states and territories in the SSA database. The highest counts are in California, Texas, Arizona. The lowest are in Nevada, Nebraska, Missouri. On average, about 50 Izaaks were registered per state.
Izaak + Last Name Combinations
How many people share a full name with Izaak as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Izaak
Other first names starting with I with a similar number of bearers.
Izaak: Questions and Answers
How many people in the U.S. are named Izaak?
We estimate approximately 2,804 people named Izaak 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 122,238 Americans share this first name.
Is Izaak a common name?
Izaak is classified as "Rare" and is more popular than 95% of all first names in the SSA database. A total of 2,846 births have been registered with this name since 1880.
When was Izaak most popular?
Izaak reached peak popularity in 2011, when 138 babies were given this name. The average age of a living person named Izaak is approximately 19 years old, reflecting when the name was most commonly given.
Is Izaak a male name?
Izaak is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Izaak Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Izaak Smith, Izaak Johnson, Izaak 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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