Travelers are voting Big Annemessex River as the best river in Worcester County. There are 7 rivers near Seaford a city just 34 km from Worcester County and 3 rivers near Onancock which is 35 km distant. The most popular of these are Broadkill River near Seaford and Cockle Creek in Onancock. You can find 58 rivers in Maryland and 3913 rivers in the country of United States. Our members favorite in Maryland is Antietam Creek and Mississippi River is the top pick in United States. Want more? Check out our map of rivers in Worcester County.