Koast is a very rare name used for both girls and boys that peaked in 2025 and has grown less common since.
Koast is predominantly a boy name. In 2025 it ranked #1,718 among boys (95) and #9,191 among girls (11) — overall #3,413 across all names. The charts below show girls and boys separately.
Boys named Koast per year · hover for count and boys rank · Source: U.S. Social Security Administration, national data 2019–2025 · U.S.+territories from SSA territory files (1998–2025) · SSA publishes a name only in years it was given to at least 5 babies, so a name may have been in use before — or between — the years shown here
Girls named Koast · 11 in 2025
Girls named Koast per year · hover for count and girls rank · Source: U.S. Social Security Administration, national data 2019–2025 · U.S.+territories from SSA territory files (1998–2025) · SSA publishes a name only in years it was given to at least 5 babies, so a name may have been in use before — or between — the years shown here