Fewer than five US girls were named Willia in 2025, so it does not appear in that year’s SSA list for girls. Its best rank for girls was #620, reached in 1902. The most girls given the name in a single year was 94, in 1928. For comparison, it was unranked (under five girls) in 2015 and #1,332 in 1950.
Fewer than five US boys were named Willia in 2025, so it does not appear in that year’s SSA list for boys. Its best rank for boys was #1,134, reached in 1902. The most boys given the name in a single year was 20, in 1986. For comparison, it was unranked (under five boys) in 2015 and #3,017 in 1950.
Social Security card records list Willia in 103 years of the 146 from 1880 to 2025, starting in 1882 with 5 babies. In all, 3,866 US babies have been given the name, 86% of them girls and 14% boys. Its busiest decade was the 1920s, with 804 babies named Willia.
In none of the 10 years from 2016 to 2025 were five or more US girls named Willia.
Related spellings in the SSA files include Willie (596,385 babies since 1880) and Willy (4,053 babies since 1880).