In 2025, 1,664 US boys were named Maddox, making it the 210th most common boys’ name of the year, up 7 places from #217 in 2024. That is 4 fewer than the 1,668 boys named Maddox in 2024. Its best rank for boys was #136, reached in 2017. That year also had the most boys given the name: 3,044. For comparison, it was #148 in 2015 and unranked in 1950.
Social Security card records list Maddox in 31 years of the 146 from 1880 to 2025, starting in 1995 with 6 babies. In all, 48,944 US babies have been given the name, 3.7% of them girls and 96% boys. Its busiest decade was the 2010s, with 26,556 babies named Maddox.
Over the 10 years from 2016 to 2025, 23,090 US boys were named Maddox; the busiest of those years was 2017, with 3,044. In 2025 that was about 1 in 1,026 of the boys in SSA’s list for the year.
Among the states, Maddox ranked highest in Vermont in 2025, at #75 for boys there. It was in the top 100 in 2 states (counting DC). Related spellings in the SSA files include Maddux (4,098 babies since 1880), Maddix (2,484 babies since 1880) and Maddex (1,784 babies since 1880). Rarer spellings such as Maddax, Madix and Maddyx are summarised on this page.