Gunnison is a distinctive boys' name in United States, ranking #6812 in 2015 with 12 recorded births. This places Gunnison in the top 48% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2015 with 12 births ranking #6812. In 2015, approximately 1 in every 159,688 boys born was named Gunnison. RISING Recent data shows the name is currently rising.