Dillon has been given to about 66,270 people in the United States since 1880. It was most common in 1992, which makes it a Gen X and millennial name.
Dillon ranks 930th among American boys in 2025, with 294 born that year. Its best year was 1992, when 5,082 babies were given the name, ranking 73rd. The typical living American called Dillon is about 28 years old today. It is relatively most common in West Virginia, where it accounts for 0.04% of births.
Source: US Social Security Administration, national and state name files, 2025 release, and the Office for National Statistics for England and Wales. Etymology researched and written by our editors. Living-population and median-age figures are our own estimates, described in the methodology.