 MD 313 crosses Long Marsh Ditch into Queen Anne's County and continues north through more farmland, before intersecting the eastern terminus of MD 19 (Roberts Station Road) in Ingleside. The route proceeds north, with a traffic count of 2,270 vehicles at the Merrick Corner Road intersection, before reaching the town of Barclay. Here, the road passes residences and intersects MD 302 (Church Street). Past this intersection, the road crosses the Centreville Branch of the Northern Line of the Maryland & Delaware Railroad before leaving Barclay and heading back into agricultural areas. The Maryland & Delaware Railroad line runs a short distance to the east of MD 313 before eventually running next to the road as it passes through a mix of farms, woods, and residences. The route enters Sudlersville, where it passes through residential areas in the town on Church Street, with the railroad line drawing farther to the east. In the center of town, the road intersects MD 300 (Main Street). Past the MD 300 intersection, MD 313 intersects MD 837 (Church Circle), an unsigned loop to westbound MD 300.
