Mami sa Diteki

San Luis is located in the central portion of Aurora Province, geographically located between east longitudes 121 16’ 00’’ to 121 35’ 00’’ and north latitudes 15 28’ 00’’ to 15’ 42’ 00. The area is bounded on the north by the municipality of Maria Aurora, on the south by Dingalan, on the east by Baler (capital of the province), and the province of Nueva Ecija on the west.