The Southwest Branch Rancocas Creek is a 13.8-mile-long (22.2 km)tributary of the South Branch Rancocas Creek in Burlington County, New Jersey in the United States.
The Southwest Branch Rancocas Creek drains approximately 142 square kilometers.
Coordinates: 39°56′56″N 74°47′46″W / 39.9490°N 74.7962°W