| Blanco Ditch | |
| Name Other: | Tributary to Sewell Branch |
| Map Size: | 180 |
| Map Alt: | Map of Blanco Ditch mouth |
| Pushpin Map: | Delaware#USA |
| Pushpin Map Size: | 180 |
| Pushpin Map Alt: | Location of Blanco Ditch mouth |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Delaware |
| Subdivision Type3: | County |
| Subdivision Name3: | Kent |
| Length: | 1.4miles[1] |
| Discharge1 Avg: | 0.92cuft/s at mouth with Blanco Ditch[2] |
| Source1: | Jordan Branch divide |
| Source1 Location: | about 0.5 miles east of Pearsons Grove, Delaware |
| Source1 Coordinates: | 39.2303°N -75.7342°W[3] |
| Source1 Elevation: | 67feet[4] |
| Mouth: | Sewell Branch |
| Mouth Location: | about 1.5 miles north of Pearsons Grove, Delaware |
| Mouth Coordinates: | 39.2461°N -75.7503°W |
| Mouth Elevation: | 39feet |
| Progression: | northwest |
| River System: | Chester River |
| Tributaries Left: | unnamed tributaries |
| Tributaries Right: | unnamed tributaries |
| Bridges: | Sewell Branch Road |
Blanco Ditch is a 1.4miles long 1st order tributary to Sewell Branch in Kent County, Delaware.
Blanco Ditch rises on the Jordan Branch divide about 0.5 miles east of Pearsons Grove, Delaware.[4]
Blanco Ditch drains of area, receives about 44.7 in/year of precipitation, has a topographic wetness index of 650.47 and is about 3.9% forested.[2]