In 2025, 298 US boys were named Jefferson, making it the 831st most common boys’ name of the year, down 121 places from #710 in 2024. That is 77 fewer than the 375 boys named Jefferson in 2024. Its best rank for boys was #253, reached in 1891. The most boys given the name in a single year was 444, in 2009. For comparison, it was #672 in 2015 and #559 in 1950.
Social Security card records list Jefferson in every one of the 146 years from 1880 to 2025; in 1880 there were 43 babies with the name. In all, 24,440 US babies have been given the name, all of them boys. Its busiest decade was the 2010s, with 3,789 babies named Jefferson.
Over the 10 years from 2016 to 2025, 3,533 US boys were named Jefferson; the busiest of those years was 2016, with 432. In 2025 that was about 1 in 5,732 of the boys in SSA’s list for the year.
Among the states, Jefferson ranked highest in Connecticut in 2025, at #462 for boys there. It was not in the top 100 of any state. Rarer spellings such as Jeferson are summarised on this page. The open nickname list we use links it to Jeff and Sonny.