Mercado | |
|---|---|
 Kiosk in Mercado, San Juan Antiguo | |
 Mercado is in San Juan Antiguo | |
 San Juan Antiguo is in San Juan | |
  Mercado San Juan is in Puerto Rico | |
| Coordinates: 18°28′10″N 66°07′03″W / 18.4694956°N 66.1174290°W | |
| Commonwealth |  Puerto Rico |
| Municipality |  San Juan |
| Barrio | San Juan Antiguo |
Mercado, located within Old San Juan, is one of 7 subbarrios in San Juan Antiguo barrio in the municipality of San Juan in Puerto Rico.