Rangers: Neftali Feliz, Alexi Ogando, Nelson Cruz, Vladimir Guerrero, Julio Borbon
Phillies: Antonio Bastardo, Placido Polanco, Wilson Valdez
Yankees: Robinson Cano
Giants: Santiago Casilla, Guillermo Mota, Ramon Ramirez, Juan Uribe
Ogando, Cano, Mota are from the baseball capital of the world, San Pedro de Macoris. No other city has more than 2 players remaining in the playoffs.
So, that comes out to 13 Dominicans on the six playoff teams. The Rangers still lead the way with five, and the Yankees, still only have Robinson Cano. Comes out to 13% of the 104 players on playoff rosters.