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Ecology home > Water Quality > WQ Assessments [303(d)] > Counties in Washington State showing Water Resource Inventory Area (WRIA)

Kayakers on Spokane River photo. Courtesy Elaine Snouwaert, WA Dept. of Ecology.

Washington State's Water Quality Assessment [303(d)]

Counties in Washington State showing Water Resource Inventory Area (WRIA)

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County Name	WRIAs
Adams	34, 36, 41 & 43
Asotin	35
Benton	31, 37 & 40
Chelan	40, 45, 46 & 47
Clallam	17, 18, 19 & 20
Clark	27 & 28
Columbia	32, 33 & 35
Cowlitz	23, 25, 26 & 27
Douglas	41, 42, 44 & 50
Ferry	51, 52, 53, 58 & 60
Franklin	33, 34 & 36
Garfield	35
Grant	36, 41, 42, 43, 44 & 53
Grays Harbor	16, 21, 22, 23 & 24
Island	6
Jefferson	16, 17, 18, 20 & 21
King	7, 8, 9, 10 & 15
Kitsap	15
Kittitas	38, 39 & 40
Klickitat	29, 30, 31 & 37
Lewis	11, 13, 23, 24, 25 & 26
Lincoln	34, 41, 42, 43, 53 & 54
Mason	14, 15, 16 & 22
Okanogan	47, 48, 49, 50, 51, 52, 53 & 60
Pacific	22, 23, 24 & 25
Pend Oreille	55, 57, 59, 61 & 62
Pierce	10, 11, 12, 15 & 26
San Juan	2
Skagit	1, 3, 4 & 5
Skamania	26, 27, 28 & 29
Snohomish	3, 4, 5, 7, & 8
Spokane	34, 43, 54, 55, 56 & 57
Stevens	54, 55, 58, 59, 60, 61 & 62
Thurston	11, 13, 14 & 23
Wahkiakum	23, 24 & 25
Walla Walla	32 & 33
Whatcom	1, 3 & 4
Whitman	34, 35 & 56
Yakima	26, 27, 29, 30, 31, 37, 38, 39 & 40

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Last updated April 2002

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