Dominicans and Mexicans 

Dominicans number at 20,000 in the state.. with about 80% of that being in the city of Philadelphia.. 80% = about 17,000.. compare 17,000 Dominicans to about 12,000 mexicans.. Dominicans are obviously the larger group by acouple thousand.. some sources: http://articles.philly.com/1996-02-07/news/25658327_1_dominican-republic-dominican-population-dominican-people and http://www.migrationpolicy.org /pubs/MPI_Report_Dominican_Pop_US.pdf