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Top counties

Top regions sorted by number of observed species
Rank Region Species Checklists Species
1 Cumberland
390
160,153
2 York
382
111,337
3 Lincoln
358
54,346
4 Washington
352
40,315
5 Knox
351
39,464
6 Hancock
348
118,856
7 Sagadahoc
338
26,828
8 Waldo
303
39,027
9 Penobscot
291
52,168
10 Kennebec
284
46,891
11 Somerset
261
14,615
12 Aroostook
259
16,876
13 Androscoggin
258
13,308
14 Oxford
250
21,645
15 Franklin
229
13,419
16 Piscataquis
221
17,416