In 2025, 245 US boys were named Jethro, making it the 953rd most common boys’ name of the year, up 117 places from #1,070 in 2024. That is 41 more than the 204 boys named Jethro in 2024. Its best rank for boys was #903, reached in 1899. The most boys given the name in a single year was 245, in 2025. For comparison, it was #1,486 in 2015 and #1,450 in 1950.
Social Security card records list Jethro in 123 years of the 146 from 1880 to 2025, starting in 1893 with 5 babies. In all, 4,325 US babies have been given the name, all of them boys. Its busiest decade was the 2020s, with 1,113 babies named Jethro.
Over the 10 years from 2016 to 2025, 1,676 US boys were named Jethro; the busiest of those years was 2025, with 245. In 2025 that was about 1 in 6,972 of the boys in SSA’s list for the year.
Among the states, Jethro ranked highest in Kansas in 2025, at #412 for boys there. It was not in the top 100 of any state. Rarer spellings such as Jethroe are summarised on this page.