Saint George River forms the border of St. George and another town with what population in 2010?
Saint George River:  The river follows a winding course 45 mi south to Thomaston, where the river flows into the estuary and runs about 12 mi southwest to Muscongus Bay, forming the border between Cushing and St. George. Cushing, Maine:  The population was 1,534 at the 2010 census.
1,534