How Many People Are Named Isiaha?
An estimated 346 people in the United States have the first name Isiaha. It is almost exclusively a male name. The average bearer is 24 years old, and Isiaha peaked in popularity in 1999 with 28 births that year.
Below you will find a full statistical profile of Isiaha 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 Isiaha paired with any surname.
Estimated Living Americans
346
About 1 in 990,619 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
24
years old
Peak Year
1999
28 births
Total Registered
352
since 1880
Gender Distribution for Isiaha
Isiaha is almost exclusively a male name. Out of 352 total births registered, 100.0% were male.
Isiaha as a male name
Ranked #12,965 in 2016
5 male births in 2016
Peak: 1999 (28 births)
Isiaha: Popularity Over Time
SSA records for Isiaha span from the 1980s to the 2010s, covering 4 decades of naming data. The most popular decade for this name was the 2000s, when 207 babies were registered. Isiaha has declined significantly from its peak in the 2000s. Recent registrations are a fraction of what they were at the name's height.
Isiaha by Decade
How has Isiaha 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.
Isiaha by State
Isiaha + Last Name Combinations
How many people share a full name with Isiaha as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Isiaha
Other first names starting with I with a similar number of bearers.
Isiaha: Questions and Answers
How many people in the U.S. are named Isiaha?
We estimate approximately 346 people named Isiaha 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 990,619 Americans share this first name.
Is Isiaha a common name?
Isiaha is classified as "Very Rare" and is more popular than 80.7% of all first names in the SSA database. A total of 352 births have been registered with this name since 1880.
When was Isiaha most popular?
Isiaha reached peak popularity in 1999, when 28 babies were given this name. The average age of a living person named Isiaha is approximately 24 years old, reflecting when the name was most commonly given.
Is Isiaha a male name?
Isiaha is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Isiaha Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Isiaha Smith, Isiaha Johnson, Isiaha 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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