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Top counties

Top regions sorted by number of observed species
Rank Region Species Checklists Species
1 Aleutians West Census Area
377
22,015
2 Nome Census Area
335
43,192
3 Juneau City and Borough
333
38,632
4 Chugach Census Area
311
11,063
5 Hoonah-Angoon Census Area
311
11,796
6 Kenai Peninsula Borough
310
74,008
7 Ketchikan Gateway Borough
288
9187
8 North Slope Borough
288
24,874
9 Anchorage Municipality
285
87,457
10 Prince of Wales-Hyder Census Area
270
2776
11 Kodiak Island Borough
266
14,759
12 Sitka City and Borough
266
13,290
13 Petersburg Borough
235
6678
14 Bethel Census Area
234
4174
15 Wrangell City and Borough
231
3536
16 Haines Borough
229
3232
17 Yakutat City and Borough
224
1658
18 Lake and Peninsula Borough
222
2265
19 Matanuska-Susitna Borough
220
25,834
20 Fairbanks North Star Borough
211
28,283
21 Skagway Municipality
205
2879
22 Southeast Fairbanks Census Area
203
4179
23 Aleutians East Borough
198
4103
24 Copper River Census Area
197
6366
25 Dillingham Census Area
194
1652
26 Bristol Bay Borough
191
1114
27 Northwest Arctic Borough
189
2408
28 Kusilvak Census Area
187
3297
29 Yukon-Koyukuk Census Area
185
5266
30 Denali Borough
174
11,835