Jones Branch is a long first-order tributary to Marshyhope Creek in Sussex County, Delaware.
Jones Branch rises on the Bridgeville Branch divide at Jacobs Crossroads, Delaware, and then flows generally northwest to join Marshyhope Creek about 1-mile east of Smithville, Maryland.
Jones Branch drains of area, receives about 44.7 in/year of precipitation, and is about 26.06% forested.