Koah
#912 in 2025UnisexBoys' nameGirls' nameMeaning not yet documented
Koah has been given to 1,438 babies in the U.S. since 2005. In 2025 it ranked #912 of 13,926 boys’ names in use. Its peak year was 2025, with 260 recorded. It's used for both sexes: 89% boys, 11% girls all-time.
Babies named Koah, 2025
1 in 12,800
Koah over time, 1880–2025
Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.
Girls or boys — Koah over time
In 2025, Koah went to 16% girls and 84% boys.
A sex is only published in years it reached five applications, so a stretch at 0% or 100% means the other side stayed under that floor — not that it was never used.
How common is Koah?
Everything below is computed from the 2025 data — the most recent year available.
- Among all babies, 2025
- 1 in 12,800
- 260 of 3,315,165 births
- Among boys only
- 1 in 6,570
- 0.02% of boys
- Rank, 2025
- #912
- of 13,926 boys’ names in use
- Coin-flip room size
- 8,839 kids
- Even odds of a second one
Where Koah sits on the popularity scale
Chance at least one other child shares the name
If the other children were drawn at random from the 2025 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.
Put another way: gather 8,839 children born in 2025 and it's an even bet that one of them is another Koah. In a class of 30 the chance is Under 1%.
When Koahs were born
Half of everyone ever recorded as Koah was born before 2023 — so the typical Koah is around 2 today.
- Biggest decade
- 2020s
- 74.6% of all use
- Born in the last 25 years
- 100.0%
- A modern name
- Recorded since 1950
- 1,279
- People you could plausibly meet
2020s — 74.6% of all recorded uses (954).
Is Koah rising or falling?
Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.
- Rank vs 1 year ago
- +172
- Places climbed
- Rank vs 5 years ago
- +1,060
- Places climbed
- Rank vs 10 years ago
- +3,326
- Places climbed
- Births vs 10 years ago
- 10.83×
- More babies than then
- Share of its own peak
- 100.0%
- Peak was 2025 (260)
- Years since peak
- Peaking now
- At its all-time high
- Year-to-year steadiness
- Volatile
- 39.1% average annual change
Spellings of Koah
Koah is not the most common spelling — Noah is, with 58.9% against Koah's 0.14%.
Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.
Where Koah is used — boys
Across 2016–2025, Koah was most concentrated in Louisiana — about 1 in 6,250 boys, against 1 in 19,601 across all states with data. It was least common in New York (1 in 100,000).
Most concentrated
- 1Louisiana1 in 6,250
- 2New Mexico1 in 6,667
- 3Montana1 in 7,143
- 4Georgia1 in 10,000
- 5North Carolina1 in 12,500
- 6Ohio1 in 12,500
- 7California1 in 16,667
- 8Florida1 in 16,667
Shading is the share of that state's recorded boys given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings.
Where Koah is used — girls
Across 1910–2025, Koah was most concentrated in Georgia — about 1 in — girls, against 1 in 573,890 across all states with data. It was least common in North Carolina (1 in —).
Most concentrated
- 1Georgia1 in —
- 2North Carolina1 in —
Shading is the share of that state's recorded girls given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings. Koah has too little recent state data to map, so this covers all years from 1910.
Koah around the world
Where Koah ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.
- England & Wales2014–2025#697in 2025
- Scotland2019–2025#560in 2025
- Northern Ireland2021–2025#395in 2025
- Ireland2020–2025#402in 2025
- Canada2017–2024#1,390in 2024
- South Australia2013–2013#389in 2013
Popularity data from Office for National Statistics, National Records of Scotland, Northern Ireland Statistics and Research Agency, Central Statistics Office, Statistics Canada and Consumer and Business Services (South Australia). ONS, NRS, NISRA data under Open Government Licence v3.0. CSO, CBS SA data under CC BY 4.0. StatCan data under Statistics Canada Open Licence.
Koah by the numbers
The raw record for each sex the name is used for.
As a boy's name
Names similar to Koah
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Koah
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.