In 2025, 34 US boys were named Maddex, making it the 3,417th most common boys’ name of the year, down 164 places from #3,253 in 2024. That is 3 fewer than the 37 boys named Maddex in 2024. Its best rank for boys was #1,277, reached in 2012. That year also had the most boys given the name: 138. For comparison, it was #1,562 in 2015 and unranked in 1950.
Social Security card records list Maddex in 23 years of the 146 from 1880 to 2025, starting in 2003 with 13 babies. In all, 1,784 US babies have been given the name, 2.2% of them girls and 98% boys. Its busiest decade was the 2010s, with 1,087 babies named Maddex.
Over the 10 years from 2016 to 2025, 667 US boys were named Maddex; the busiest of those years was 2016, with 96. In 2025 that was about 1 in 50,238 of the boys in SSA’s list for the year.
Related spellings in the SSA files include Maddox (48,944 babies since 1880), Maddux (4,098 babies since 1880) and Maddix (2,484 babies since 1880).