In 2025, 476 US boys were named Kolter, making it the 600th most common boys’ name of the year, up 235 places from #835 in 2024. That is 179 more than the 297 boys named Kolter in 2024. Its best rank for boys was #600, reached in this year, 2025. That year also had the most boys given the name: 476. For comparison, it was #2,792 in 2015 and unranked in 1950.
Social Security card records list Kolter in 38 years of the 146 from 1880 to 2025, starting in 1987 with 8 babies. In all, 1,938 US babies have been given the name, all of them boys. Its busiest decade was the 2020s, with 1,256 babies named Kolter.
Over the 10 years from 2016 to 2025, 1,418 US boys were named Kolter; the busiest of those years was 2025, with 476. In 2025 that was about 1 in 3,588 of the boys in SSA’s list for the year.
Among the states, Kolter ranked highest in Oklahoma in 2025, at #182 for boys there. It was not in the top 100 of any state. Related spellings in the SSA files include Colter (10,705 babies since 1880).