|
|
Area
|
State
|
County
|
|
1
|
147,842 sq mi
|
Alaska
|
Yukon-Koyukuk
|
|
2
|
94,762 sq mi
|
Alaska
|
North Slope
|
|
3
|
45,508 sq mi
|
Alaska
|
Bethel
|
|
4
|
40,762 sq mi
|
Alaska
|
Northwest Arctic
|
|
5
|
30,906 sq mi
|
Alaska
|
Lake and Peninsula
|
|
6
|
28,283 sq mi
|
Alaska
|
Nome
|
|
7
|
25,259 sq mi
|
Alaska
|
Matanuska-Susitna
|
|
8
|
25,061 sq mi
|
Alaska
|
Southeast Fairbanks
|
|
9
|
24,754 sq mi
|
Alaska
|
Kenai Peninsula
|
|
10
|
25,692 sq mi
|
Alaska
|
Copper River
|
|
11
|
20,928 sq mi
|
Alaska
|
Dillingham
|
|
12
|
20,105 sq mi
|
California
|
San Bernardino
|
|
13
|
19,669 sq mi
|
Alaska
|
Kusilvak
|
|
13
|
18,661 sq mi
|
Arizona
|
Coconino
|
|
15
|
18,158 sq mi
|
Nevada
|
Nye
|
|
16
|
17,202 sq mi
|
Nevada
|
Elko
|
|
17
|
15,011 sq mi
|
Alaska
|
Aleutians East
|
|
18
|
14,116 sq mi
|
Alaska
|
Aleutians West
|
|
19
|
13,469 sq mi
|
Arizona
|
Mohave
|
|
20
|
12,774 sq mi
|
Alaska
|
Denali
|
|
21
|
12,023 sq mi
|
Alaska
|
Kodiak Island
|
|
22
|
11,218 sq mi
|
Nevada
|
Apache
|
|
23
|
10,914 sq mi
|
Alaska
|
Hoonah-Angoon
|
|
24
|
10,636 sq mi
|
Nevada
|
Lincoln
|
|
25
|
10,491 sq mi
|
Wyoming
|
|
26
|
10,226 sq mi
|
California
|
Inyo
|
|
27
|
10,226 sq mi
|
Oregon
|
Harney
|
|
28
|
9,959 sq mi
|
Arizona
|
Navajo
|
|
29
|
9,929 sq mi
|
Oregon
|
Malheur
|
|
30
|
9,657 sq mi
|
Nevada
|
Humboldt
|
|
31
|
9,530 sq mi
|
Alaska
|
Chugach
|
|
32
|
9,459 sq mi
|
Alaska
|
Yakutat
|
|
33
|
9,182 sq mi
|
Wyoming
|
Fremont
|
|
34
|
9,224 sq mi
|
Arizona
|
Maricopa
|
|
|
|
Area
|
State
|
County
|
|
35
|
9,188 sq mi
|
Arizona
|
Pima
|
|
36
|
8,896 sq mi
|
Nevada
|
White Pine
|
|
37
|
8,502 sq mi
|
Idaho
|
Idaho
|
|
38
|
8,358 sq mi
|
Oregon
|
Lake
|
|
39
|
8,161 sq mi
|
California
|
Kern
|
|
40
|
8,127 sq mi
|
Arizona
|
Yavapai
|
|
41
|
8,050 sq mi
|
Nevada
|
Clark
|
|
42
|
7,964 sq mi
|
Wyoming
|
Carbon
|
|
43
|
7,933 sq mi
|
Utah
|
San Juan
|
|
44
|
7,696 sq mi
|
Idaho
|
Owyhee
|
|
45
|
7,683 sq mi
|
Alaska
|
Prince of Wales-Hyder
|
|
46
|
7,444 sq mi
|
Alaska
|
Fairbanks North Star
|
|
47
|
7,303 sq mi
|
California
|
Riverside
|
|
48
|
7,287 sq mi
|
Utah
|
Tooele
|
|
49
|
6,968 sq mi
|
Wyoming
|
Park
|
|
50
|
6,929 sq mi
|
New Mexico
|
Catron
|
|
51
|
6,859 sq mi
|
Minnesota
|
St. Louis
|
|
52
|
6,828 sq mi
|
Maine
|
Aroostook
|
|
53
|
6,828 sq mi
|
Utah
|
Millard
|
|
54
|
6,729 sq mi
|
Utah
|
Box Elder
|
|
55
|
6,648 sq mi
|
New Mexico
|
Socorro
|
|
56
|
6,627 sq mi
|
New Mexico
|
Otero
|
|
57
|
6,551 sq mi
|
Nevada
|
Washoe
|
|
58
|
6,347 sq mi
|
California
|
Siskiyou
|
|
59
|
6,218 sq mi
|
Arizona
|
Cochise
|
|
60
|
6,192 sq mi
|
Texas
|
Brewster
|
|
61
|
6,135 sq mi
|
Oregon
|
Klamath
|
|
62
|
6,075 sq mi
|
New Mexico
|
Chaves
|
|
63
|
6,067 sq mi
|
Nevada
|
Pershing
|
|
64
|
6,017 sq mi
|
California
|
Fresno
|
|
65
|
6,009 sq mi
|
Nebraska
|
Cherry
|
|
66
|
5,965 sq mi
|
Michigan
|
Keweenaw
|
|
67
|
5,896 sq mi
|
New Mexico
|
Rio Arriba
|
|
|
|
Area
|
State
|
County
|
|
68
|
5,572 sq mi
|
Montana
|
Beaverhead
|
|
69
|
5,514 sq mi
|
New Mexico
|
San Juan
|
|
70
|
5,519 sq mi
|
Nevada
|
Lander
|
|
71
|
5,518 sq mi
|
Arizona
|
Yuma
|
|
72
|
5,455 sq mi
|
New Mexico
|
McKinley
|
|
73
|
5,375 sq mi
|
Wyoming
|
Natrona
|
|
74
|
5,374 sq mi
|
Arizona
|
Pinal
|
|
75
|
5,315 sq mi
|
Washington
|
Okanogan
|
|
76
|
5,256 sq mi
|
Montana
|
Flathead
|
|
77
|
5,212 sq mi
|
Montana
|
Phillips
|
|
78
|
5,208 sq mi
|
Utah
|
Garfield
|
|
79
|
5,133 sq mi
|
Oregon
|
Douglas
|
|
80
|
5,086 sq mi
|
Hawaii
|
Hawaii
|
|
81
|
5,061 sq mi
|
Montana
|
Valley
|
|
82
|
5,049 sq mi
|
Michigan
|
Alger
|
|
83
|
5,026 sq mi
|
Montana
|
Rosebud
|
|
84
|
5,023 sq mi
|
Nevada
|
Churchill
|
|
85
|
5,014 sq mi
|
Montana
|
Big Horn
|
|
86
|
4,936 sq mi
|
Idaho
|
Custer
|
|
87
|
4,933 sq mi
|
Wyoming
|
Sublette
|
|
88
|
4,847 sq mi
|
Montana
|
Garfield
|
|
89
|
4,839 sq mi
|
California
|
Tulare
|
|
90
|
4,831 sq mi
|
New Mexico
|
Lincoln
|
|
91
|
4,811 sq mi
|
Alaska
|
Sitka
|
|
92
|
4,807 sq mi
|
Wyoming
|
Campbell
|
|
93
|
4,795 sq mi
|
Arizona
|
Gila
|
|
94
|
4.775 sq mi
|
Colorado
|
Las Animas
|
|
95
|
4,764 sq mi
|
Texas
|
Pecos
|
|
96
|
4,752 sq mi
|
California
|
Los Angeles
|
|
97
|
4,750 sq mi
|
Colorado
|
Moffat
|
|
98
|
4,735 sq mi
|
New Mexico
|
San Miguel
|
|
99
|
4,721 sq mi
|
Oregon
|
Lane
|
|
100
|
4,720 sq mi
|
California
|
Lassen
|
|
