An ethnic neighborhood is a small area within a large city with a strong clustering of a specific ethnic group in which the people living there have a similar ethnic culture and background. This is referred to as an ethnic enclave and has resulted in the creation of specfic ethnic neighborhoods like Chinatown in San Francisco or Little Havana in Miami.
Relocation Diffusion has helped in the growth of ethnic neighborhoods as many people from the same ethnic background continue to migrate into the specific area of the city, the ethnic neighborhood continues to grow as much of the cultural elements are brought over to ethnic neighborhoods like specific ethnic food, ethnic language, ethnic religion which help to transform the area and welcome new immigrants. As many Chinese people migrated to San Francisco, more chinese owned stores began to emerge like Chinese restaurants serving lo mein, or chinese national banks, or chinese sytled home goods and furniture. Even Chinese langauge schools and buddhist temples are established to welcome more immigrants.