 About 1.55% of the population were Hispanic or Latino of any race.The largest self-reported European ancestries in Jefferson County, Alabama are English 9.7%(64,016), "American" 9.6%(63,015), Irish 8.6%(56,695), German 7.2%(47,690).Many Americans whose ancestors came from Britain or Ireland identify simply as American, because their immigrant ancestors arrived so long ago, in some cases in the 17th and 18th centuries.