Data on potential voters (persons aged 18 yrs. or more and citizens of the US) are presented for Ukrainians and for major Eastern European groups (Ukrainians, Poles, Checks, Slovaks, Hungarians, Estonians, Lithuanians and Latvians). Ethnic groups are defined by ancestry: single, first or second, and there may be some duplication of persons with double ancestry. For example, if a person is Ukrainian- Polish, it is counted twice,as Ukrainian and as Polish. However, this double counting is very small.