Fewer than five US girls were named Lonie in 2025, so it does not appear in that year’s SSA list for girls. Its best rank for girls was #463, reached in 1888. The most girls given the name in a single year was 44, in 1919. For comparison, it was unranked (under five girls) in 2015 and #3,574 in 1950.
Fewer than five US boys were named Lonie in 2025, so it does not appear in that year’s SSA list for boys. Its best rank for boys was #514, reached in 1889. The most boys given the name in a single year was 33, in 1921. For comparison, it was unranked (under five boys) in 2015 and #3,204 in 1950.
Social Security card records list Lonie in 105 years of the 146 from 1880 to 2025, starting in 1880 with 7 babies. In all, 2,755 US babies have been given the name, 61% of them girls and 39% boys. Its busiest decade was the 1910s, with 531 babies named Lonie.
In none of the 10 years from 2016 to 2025 were five or more US girls named Lonie.
Related spellings in the SSA files include Lonnie (101,481 babies since 1880), Lonny (6,413 babies since 1880) and Loni (3,878 babies since 1880). Rarer spellings such as Lonyea are summarised on this page.