In your watershed

Washington is divided into 62 Water Resource Inventory Areas (WRIAs) based on natural watersheds. Due to Washington’s varied land uses, hydrology, and precipitation levels, the amount of water available for new water right permits varies dramatically across the state.

What is a WRIA?

WRIAs are areas defined by higher elevation that capture precipitation and funnel rain and snowmelt through smaller subbasins into streams, tributaries, and rivers. Due to Washington’s varied terrain and precipitation levels, water availability is different in each location.
 
On the WRIA pages found below, you can learn more about the key factors affecting water availability in your WRIA. Note: Some of these pages are still being developed. If you don’t see a link to information for the WRIA you’re looking for, check back soon.

 

 
1-22 23-44 45-62
1 Nooksack
2 San Juan
3 Lower Skagit
4 Upper Skagit
5 Stillaguamish
6 Island
7 Snohomish
8 Cedar/Sammamish
9 Duwamish-Green
10 Puyallup-White
11 Nisqually
12 Chambers-Clover
13 Deschutes
14 Kennedy-Goldsborough
15 Kitsap
16 Skokomish-Dosewallips
17 Quilcene-Snow
18 Elwha-Dungeness
19 Lyre-Hoko
20 Soleduc-Hoh
21 Queets-Quinault
22 Lower Chehalis
 
23 Upper Chehalis
24 Willapa
25 Grays-Elochoman
26 Cowlitz
27 Lewis
28 Salmon-Washougal
29 Wind-White Salmon
30 Klickitat
31 Rock-Glade
32 Walla Walla
33 Lower Snake
34 Palouse
35 Middle Snake
36 Esquatzel-Coulee
37 Lower Yakima
38 Naches
39 Upper Yakima
40 Alkli-Squilchuck
41 Lower Crab
42 Grand Coulee
43 Upper Crab
44 Moses Coulee
45 Wenatchee
46 Entiat
47 Chelan
48 Methow
49 Okanogan
50 Foster
51 Nespelem
52 Sanpoil
53 Lower Lake Roosevelt
54 Lower Spokane
55 Little Spokane
56 Hangman
57 Middle Spokane
58 Middle Lake Roosevelt
59 Colville
60 Kettle
61 Upper Lake Roosevelt
62 Pend Oreille
A-D D-K L-S T-Z
Adams
Asotin
Benton
Chelan
Clallam
Clark
Columbia
Cowlitz
Douglas

 
Ferry
Franklin
Garfield
Grant
Grays Harbor
Island
Jefferson
King
Kitsap
Kittitas
Klickitat
 
Lewis
Lincoln
Mason
Okanogan
Pacific
Pend Oreille
Pierce
San Juan
Skagit
Skamania
Snohomish
Spokane
Stevens
Thurston
Wahkiakum
Walla Walla
Whatcom
Whitman
Yakima
Statewide