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Top counties

Top regions sorted by number of observed species
Rank Region Species Checklists Species
1 Cape May
439
316,469
2 Ocean
402
111,007
3 Monmouth
398
103,012
4 Atlantic
385
71,309
5 Bergen
348
91,880
6 Cumberland
348
25,664
7 Burlington
345
63,721
8 Middlesex
343
53,706
9 Hudson
332
26,264
10 Salem
329
16,561
11 Morris
326
70,393
12 Hunterdon
325
69,215
13 Sussex
318
39,737
14 Gloucester
307
43,632
15 Warren
303
26,270
16 Mercer
300
73,963
17 Somerset
296
64,114
18 Union
290
25,839
19 Camden
285
31,658
20 Passaic
283
33,604
21 Essex
282
26,983