Koa Boy
How popular is Koa?
#269 boy name in 2025
1,281 baby boys were named Koa in the US in 2025, making it the 269th most popular boy name. Another 132 girls got the name (#1,587 for girls).
Koa popularity over time
Boys Girls
| Rank in 2025 | #269 for boys (▲ 23 from 2024) |
|---|---|
| Babies in 2025 | 1,281 boys, 132 girls |
| 10-year trend | Rising fast (+691% babies vs 2015) |
| Earlier ranks | #1,157 in 2015, #582 in 2020 |
| Peak year | 2025 (1,281 boys) |
| Highest rank | #269 in 2025 |
| First recorded | 1978 |
| Boys vs girls (last 10 years) | 90% boys, 10% girls |
| Chance a classmate shares it | 1% in a class of 25 kids born in 2025 |
Koa counting every spelling
Social Security counts each spelling as its own name. Adding together the spellings that sound alike, the Koa family of names ranked #240 for boys in 2025 (#265 the year before), with 1,558 babies in all.
| Spelling | Boys in 2025 | Share |
|---|---|---|
| Koa | 1,281 | 82% |
| Koah | 260 | 17% |
| Coa | 10 | 1% |
| Coah | 7 | 0% |
Spellings are grouped by how they sound, using our own rules, so a few groupings may not match how your family says the name.
Where Koa is most popular
Babies named Koa per 1,000 boys born in each state, 2021 to 2025. Darker means more common.
- Hawaii: 6.4 per 1,000 (100 boys)
- Nevada: 1.3 per 1,000 (73 boys)
- Delaware: 1.2 per 1,000 (18 boys)
- New Mexico: 1.2 per 1,000 (39 boys)
- Utah: 1.2 per 1,000 (112 boys)
Koa by decade
| Decade | Baby boys | Best rank |
|---|---|---|
| 1970s | 7 | #4,552 |
| 1980s | 13 | #4,938 |
| 1990s | 96 | #3,475 |
| 2000s | 432 | #1,824 |
| 2010s | 1,648 | #739 |
| 2020s | 5,506 | #269 |
Boy names about as popular as Koa
Questions
- Is Koa a boy or girl name?
- Koa is mostly a boy name. Over the last 10 years, 90% of babies named Koa were boys.
- How popular is the name Koa?
- 1,281 baby boys were named Koa in the US in 2025, making it the 269th most popular boy name. Another 132 girls got the name (#1,587 for girls).
- When was Koa most popular?
- Koa peaked in 2025, when 1,281 boys were given the name. Its highest rank was #269 in 2025.
- How many people are named Koa?
- 8,548 babies have been named Koa in the US since 1880. We estimate about 8,512 of them are alive in 2026, with a median age of 4.
- Where is Koa most popular?
- From 2021 to 2025, Koa was most common in Hawaii, at 6.4 of every 1,000 boys born there.
Source: Social Security Administration baby name data, 1880 to 2025 (names given to at least 5 babies of a sex in a year). Living-people and median-age figures are our estimates using US life tables. How we calculate.