Seth Adler Ethnicity ? Identity with a group of people who share the cultural traditions of a homeland Race ? Identity with a group of people who share a biological ancestor Where Are Ethnicities Distributed? Distribution of Ethnicities in the United States The two most numerous ethnicities in the US are Hispanic or Latinos (15%) and African Americans (13%). Clustering of Ethnicities Ethnic groups may live in a particular region and they may live in particular neighborhoods. Regional Concentration of Ethnicities Hispanic or Latino: Clustered in Southwest (Mostly in Arizona, New Mexico, Texas, and California). ?Hispanic? is coined by the US government in 1973. African Americans: Clustered in Southeast (Alabama, Georgia, Louisiana, Maryland, South Carolina, and Mississippi).