
Nooksack River, South Fork Fishing Regulations
Whatcom County, Washington · 2026 size limits, bag limits, and seasons
Nooksack River, South Fork is a river in Whatcom County, Washington. It has its own fishing regulations for 8 species, including Brook Trout, Brown Trout, Cutthroat Trout, and Golden Trout. These rules replace Washington's statewide limits on this water.
Map of Nooksack River, South Fork

Fish with special rules on Nooksack River, South Fork
Tap a fish for identification tips, size records, and the best bait.
Nooksack River, South Fork limits by species (2026)
| Species | Size limit | Daily bag | Season |
|---|---|---|---|
| All Fish Species | – | – | Year-round |
| Barbless; Single Point Hook; No Bait | – | – | Year-round |
| Single Point Hook | – | – | Oct 1 – Dec 31 |
| – | – | Oct 1 – Dec 31 | |
| – | – | Oct 1 – Dec 31 | |
| – | – | Oct 1 – Dec 31 | |
| 14" min | – | Oct 1 – Dec 31 | |
| – | – | Oct 1 – Dec 31 | |
| – | – | Oct 1 – Dec 31 | |
| – | – | Oct 1 – Dec 31 | |
| – | – | Oct 1 – Dec 31 | |
| Wild Rainbow TroutWild fish only | 14" min | – | Oct 1 – Dec 31 |
– means no limit is listed for this water. Rules not shown here follow Washington's statewide regulations.
Plan your Nooksack River, South Fork trip
Nooksack River, South Fork fishing: common questions
What fish have special regulations on Nooksack River, South Fork?
8 species have rules specific to Nooksack River, South Fork: Brook Trout, Brown Trout, Cutthroat Trout, Golden Trout, Lake Trout, Rainbow Trout, Steelhead, and Wild Rainbow Trout.
What is the brook trout limit on Nooksack River, South Fork?
No size limit is listed for Brook Trout on Nooksack River, South Fork. Season: Oct 1 – Dec 31.
What is the brown trout limit on Nooksack River, South Fork?
No size limit is listed for Brown Trout on Nooksack River, South Fork. Season: Oct 1 – Dec 31.
What is the cutthroat trout limit on Nooksack River, South Fork?
No size limit is listed for Cutthroat Trout on Nooksack River, South Fork. Season: Oct 1 – Dec 31. Limits change during the year.
Do Washington statewide fishing rules apply on Nooksack River, South Fork?
Where Nooksack River, South Fork has its own rule for a species, that rule replaces the statewide limit. For species not listed on this page, Washington's statewide regulations apply. Regulations are set by the Washington Department of Fish and Wildlife; confirm with the official 2026 regulations before keeping a fish.
Other Washington waters with special regulations
- Yakima River · Benton
- Columbia River
- Wind River · Skamania
- Drano Lake · Skamania
- Naselle River · Pacific
- Roosevelt Lake · Ferry/Grant/Lincoln/Okanogan/Stevens
- Cowlitz River · Cowlitz/Lewis
- Green River · Duwamish
- Grays River · Wahkiakum
- Nisqually River · Pierce/Thurston
- Nooksack River · Whatcom
- Humptulips River · Grays Harbor
Take Nooksack River, South Fork rules on the water
Identify your catch, check if it's a keeper, and log it. CatchVault is on iOS, with Android on the way.






