The following article is divided into two parts.  The first part below addresses the timing, place of birth and mother tongue of Ukrainian immigrants to the United States, as well as their distribution within the U.S., and it provides insights into the development of the socio-cultural identity of Ukrainian immigrants.  The second part, which will be published in the following issue of The Ukrainian Weekly, will address Ukrainian immigrant’s characteristics, such as age and sex, education (literacy), knowledge of English, family structure, employment status, class of worker, occupation and homeownership.