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Top counties

Top regions sorted by number of observed species
Rank Region Species Checklists Species
1 Cumberland
383
137,529
2 York
377
99,125
3 Lincoln
354
44,722
4 Hancock
348
102,167
5 Washington
347
32,276
6 Knox
346
33,465
7 Sagadahoc
335
23,895
8 Waldo
298
35,617
9 Penobscot
288
43,446
10 Kennebec
280
42,260
11 Somerset
259
11,197
12 Aroostook
258
12,613
13 Androscoggin
248
11,048
14 Oxford
243
18,759
15 Franklin
224
10,789
16 Piscataquis
220
13,224