Ukraine used to be one of the most ethnically mixed Soviet republics due to a high level of immigration, mostly from other parts of the Soviet Union. This article uses the sample of households available at IPUMS International to study the information about birthplaces, migration and marriage partners in recently released microdata from the 2001 census. Since Ukraine’s independence in 1991 a large emigration surplus and ethnic estrangement have turned the country into a place with a lower degree of internal migration and ethnic intermarriage. With the exception of the capital Kiev, there was relatively little interchange of migrants between the eastern, Russian-dominated regions and the western regions. The highest degree of intermarriage was among people with at least one partner born abroad, most often in Russia. There is evidence of an elite of migrants from Russia to the Russia-oriented south-eastern provinces, who may feel especially threatened by the Ukrainian nationalistic takeover of power which happened after the Maidan insurrection.