Assunpink Creek is a stocked trout stream in Mercer County, New Jersey, around Robbinsville Township. 4.9 of its 6.2 miles (79%) run through mapped public land. New Jersey allocated 1,430 trout to it for spring 2026.
Bold where the stream crosses public land; faint and dashed across private land. Gauges are measurement stations; a nearby gauge may be on a different stream.
Stream types · New Jersey
Bold where the stream crosses public land
10 of the 15 mapped parking areas and access points along the stream are on public land, from Van Nest Wildlife Management Area to Mercer County Park. Distances are to the nearest bank; the others sit on private or restricted land, so check posted signs before parking there.
1,430 trout stocked spring 2026. In-season stocking dates are on the state's schedule. Source: NJDEP Fish & Wildlife, 2026 Spring Trout Allocations, checked Oct 12, 2026.
The 2026 Digest lists no special regulation for this stream, so the statewide trout rules apply: season dates, daily limits and minimum sizes.
Rules: 2026 New Jersey Freshwater Fishing Digest, pages 16-21.
The USGS gauge on this stream is Assunpink Creek near Clarksville, NJ. Its current reading appears here and on the state map.
Other streams in Mercer County: D&R Feeder Canal · D&R Canal · Stony Brook
Check before you fish. Access, stocking and rules come from New Jersey's own data and can be out of date. Posted signs and landowners' wishes come first, and private land needs permission. You need a valid fishing license.