Jennings has been given to about 5,192 people in the United States since 1880. It was most common in 2021, which makes it a current name.
Its best year was 2021, when 116 babies were given the name, ranking 1776th. The typical living American called Jennings is about 33 years old today. It is relatively most common in Alabama, where it accounts for 0.02% of births.
Source: US Social Security Administration, national and state name files, 2025 release. Etymology researched and written by our editors. Living-population and median-age figures are our own estimates, described in the methodology.