In 2025, 88 US girls were named Adelia, making it the 2,117th most common girls’ name of the year, down 37 places from #2,080 in 2024. That is 4 fewer than the 92 girls named Adelia in 2024. Its best rank for girls was #322, reached in 1884. The most girls given the name in a single year was 112, in 2017. For comparison, it was #2,259 in 2015 and #1,576 in 1950.
Social Security card records list Adelia in every one of the 146 years from 1880 to 2025; in 1880 there were 18 babies with the name. In all, 5,717 US babies have been given the name, all of them girls. Its busiest decade was the 2010s, with 785 babies named Adelia.
Over the 10 years from 2016 to 2025, 879 US girls were named Adelia; the busiest of those years was 2017, with 112. In 2025 that was about 1 in 18,264 of the girls in SSA’s list for the year.
Among the states, Adelia ranked highest in Washington in 2025, at #1,048 for girls there. It was not in the top 100 of any state. Related spellings in the SSA files include Delia (37,380 babies since 1880), Adela (14,105 babies since 1880), Adalia (2,499 babies since 1880) and Adalie (2,456 babies since 1880). Rarer spellings such as Audelia, Adali and Adelie are summarised on this page.