River NY NJ PA

Wallkill River

New York • 41.3029, -74.4743
Length
92 mi
147 km
Elevation
773′ → 10′
763 ft drop
Stream Order
6
Large River
Slope
0.16%
8.3 ft/mi
Drainage
772 mi²
1,999 km²
Avg Flow
1,339 cfs
2.8 mph velocity
Path to Mouth
227 mi
366 km to ocean
Classification
Headwater
Source Stream
Elevation Profile
Water Quality

Data from EPA Water Quality Portal (USGS, EPA, state agencies).

Data from USGS & NOAA for informational purposes only. More

Water Level Gauges on Wallkill River

There are 6 USGS water level monitoring stations on Wallkill River providing real-time flow and stage data.

Access Sites on Wallkill River

There are 5 boat ramps, launches, and public access points on Wallkill River.