Koast is a distinctive boys' name in United States, ranking #13455 in 2022 with 5 recorded births. This places Koast in the bottom 6% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2025 with 95 births ranking #1718. In 2022, approximately 1 in every 348,875 boys born was named Koast. RISING Recent data shows the name is currently rising.