What describes ethnic communities that were created by immigrants who settled in big American cities?

Ethnic communities established by immigrants in large American cities are often characterized by a concentration of individuals sharing a common cultural heritage, language, and traditions. These enclaves typically provide social support, economic opportunities, and a sense of belonging, allowing newcomers to maintain their cultural identity while integrating into American society. Additionally, they often feature businesses, places of worship, and community organizations that cater to the specific needs and values of their members. Such communities contribute to the rich tapestry of multiculturalism in urban areas.