In this article, the author discusses the functioning of the English-Polish bilingual parish in the reality of the Catholic Church in the United States, where such an arrangement is very popular. The main burden of pastoral care in foreign languages has shifted from ethnic parishes to multilingual parishes. As an illustrative example of such a parish, the author provides St Priscilla Parish in Chicago; it has already undergone several ethnic transformations in its history and, therefore, can offer an insight into the liturgical life, the population structure and the question of affiliation as well as the operation of the pastoral council for economic matters and pastoral life. These aspects are presented with a particular focus on the use of two languages by two different ethnic groups. Selected issues concerning the relationship between English-speaking and Polish-speaking parishioners were also addressed.