Among U.S. communities, the City of Los Angeles (as of 2015 Census estimates) is home to the third largest population (92,752) of persons of Chinese descent (including Taiwanese).
There are eleven communities in the United States where the population of Chinese descent (including Taiwanese) make up 30 percent or more of the total population. All are in California. The top ten of these are all in Los Angeles County and all within the San Gabriel Valley. These are (in descending order by percent):
These ten Los Angeles County cities and communities have the highest percentages of persons of Chinese descent in the nation, making them the “most Chinese” communities in America.
Approximately 21 percent of residents of Los Angeles County's San Gabriel Valley (more than 293,000 persons) are of Chinese descent.
Source: U.S. Census Bureau