Mērsrags (German: Markgrafen) is a small harbor town in Latvia located on the west coast of the Gulf of Riga, beside Lake Engure and surrounded by extensive woodlands. The total area of the Mērsrags municipality is 109 km² (10896.2 ha). 63.7% of this area is woodland and Lake Engure covers 20.4%. The coastline is about 12 km. long. The town center is some 42 km from Talsi, the main city of the area, and some 95 km. from the capital, Riga.