Philadelphia is an extremely diverse city. The school I taught at had about 30 different cultures represented. There are very few PA Dutch/Amish in Philadelphia. They live in the Lancaster/Reading area about an 90 outside of Philly. There is a large Asian community made up of many countries. There are also many, many Asians who were adopted by white parents.
According to Wikipedia: The 2010 Census redistricting data indicated that the racial makeup of the city was 644,287 (42.2%) Black(non-Hispanic), 562,585 (36.9%) White (non-Hispanic), 96,405 (6.3%) Asian (2.0% Chinese, 1.2% Indian, 0.9% Vietnamese, 0.4% Korean, 0.3% Filipino, 0.1% Japanese, and 1.4% other), 6,996 (0.5%) Native Americans, 744 (0.05%) Pacific Islanders, and 43,070 (2.8%) from two or more races. Hispanics or Latinos of any race were 187,611 persons (12.3%); 8.0% Puerto Rican, 1.0% Mexican, 0.3% Cuban, and 3.0% other. The racial breakdown of Philadelphia's Hispanic/Latino population was 63,636 (33.9%) White, 17,552 (9.4%) Black, 3,498 (1.9%) Native American, 884 (0.47%) Asian, 287 (0.15%) Pacific Islander, 86,626 (46.2%) from other races, and 15,128 (8.1%) from two or more races.[102] The five largest European ancestries reported in the 2010 Census included Irish (13.0%), Italian (8.3%), German (8.2%), Polish (3.9%), and English (3.1%).
The white population is made up of people whose backgrounds are from every European country.