How Many People Are Named Kiernan?
people named Kiernan are alive in the United States today (estimate)
About 1 in 142,114 people in the US has this name
Based on 2,448 babies named Kiernan in Social Security records from 1957 to 2025, and the share of each birth year still alive in 2025.
Popularity Rank
💎💎 Very Rare
Peak Year
104 births
Trend
Stable (last 10 years)
⚧ Gender Distribution
Of the babies given the name Kiernan, 28.2% were girls and 71.8% were boys. The share has stayed close to this since the 1980s: 30.2% of the babies were girls then and 27.6% in the 2020s.
👥 Age Distribution
The average person named Kiernan alive today is about 19 years old, and 84% are under 30. Half of them were between 11 and 26 in 2025.
📈 Popularity Over Time
Kiernan first appears in the records in 1957 and was given most often in 2008, to 104 babies. In 2025, 43 babies got the name.
Babies given the name each year, 1957 to 2025
🏆 Rank History
Kiernan has never been one of the 100 most popular boys' names. Its best rank was #1,690, in 2000. In 2025 it ranked #3,408. Among girls, its best rank was #3,848, in 2002.
| Boys | Girls | |
|---|---|---|
| Rank in 2025 | #3,408 | #10,515 |
| Best rank | #1,690 (2000) | #3,848 (2002) |
| Years in the top 100 | None | None |
| Rank in its biggest decade | #1,975 in the 2000s | #5,449 in the 2000s |
📍 State-Wise Distribution
People named Kiernan alive today, by the state where they were born (estimate; state records start in 1910).
More people named Kiernan were born in New York than in any other state: about 171 of those alive today. Compared with the national rate in the same years, Kiernan was given 6.5 times as often in New York and 1.4 times in California.
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