| Long Branch | |
| Name Other: | Tributary to Toms Dam Branch |
| Map Size: | 180 |
| Pushpin Map: | Delaware#USA |
| Pushpin Map Size: | 180 |
| Pushpin Map Caption: | Location of Toms Dam Branch mouth |
| Pushpin Map Alt: | Map of Toms Dam Branch mouth location |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Delaware |
| Subdivision Type3: | County |
| Subdivision Name3: | Sussex |
| Length: | 2.17miles[1] |
| Discharge1 Location: | Toms Dam Branch |
| Discharge1 Avg: | 1.39cuft/s at mouth with Toms Dam Branch[2] |
| Source1: | Nanticoke River divide |
| Source1 Location: | about 0.5 miles northeast of Greenwood, Delaware[3] |
| Source1 Coordinates: | 38.8089°N -75.5722°W[4] |
| Source1 Elevation: | 52feet |
| Mouth: | Toms Dam Branch |
| Mouth Location: | about 1 mile southeast of St. Johnstown, Delaware[5] |
| Mouth Coordinates: | 38.8089°N -75.5722°W |
| Mouth Elevation: | 36feet |
| Progression: | generally south |
| River System: | Nanticoke River |
| Tributaries Left: | unnamed tributaries |
| Tributaries Right: | unnamed tributaries |
| Bridges: | PA 36, PA 16 |
Long Branch is a 2.17miles long 1st order tributary to Toms Dam Branch in Sussex County, Delaware.
Long Branch rises about 0.5 miles northeast of Greenwood, Delaware[3] and then flows south to join Toms Dam Branch about 1 mile southeast of St. Johnstown.[5]
Long Branch drains of area, receives about 45.2 in/year of precipitation, has a topographic wetness index of 830.08 and is about 7% forested.[2]