The Hispanic market in South Florida is... Miami Dade has the highest percentage of Hispanics in the nation (60%). Miami Dade is the second largest county on the East Coast. From 1980 to 2010, the Hispanic population in South Florida is expected to quadruple! which is more cost effective! At home, 2 out of 3 Hispanics only speak Spanish. Nearly 1 in every 4 can only be effectively reached in Spanish. South Florida Hispanic buying power is 27.3 billion dollars strong! Sources: US Census Bureau              Strategic Research Corp.              Univision