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Top counties

Top regions sorted by number of observed species
Rank Region Species Checklists Species
1 King
393
344,331
2 Clallam
385
83,026
3 Skagit
374
96,884
4 Grays Harbor
359
51,638
5 Snohomish
350
102,104
6 Pacific
339
20,863
7 Whatcom
339
63,368
8 Walla Walla
338
34,150
9 Kitsap
329
65,886
10 Grant
328
24,380
11 Pierce
328
96,688
12 Thurston
323
75,664
13 Yakima
315
48,290
14 Clark
311
48,764
15 Lincoln
310
11,393
16 Spokane
309
46,322
17 Benton
307
24,656
18 Island
306
41,948
19 Jefferson
304
47,733
20 Kittitas
300
38,312
21 Okanogan
299
32,853
22 Klickitat
296
20,335
23 Chelan
294
47,575
24 Adams
288
8165
25 Franklin
286
7732
26 San Juan
286
40,166
27 Douglas
285
15,020
28 Whitman
277
16,549
29 Asotin
273
5312
30 Cowlitz
273
14,366
31 Stevens
269
13,799
32 Skamania
268
8593
33 Lewis
264
14,514
34 Mason
262
24,113
35 Pend Oreille
259
8160
36 Wahkiakum
248
6506
37 Ferry
243
5516
38 Columbia
237
2421
39 Garfield
231
1480