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50 Biggest US Counties

This is by size. *Does not include Boroughs.
source
Total Area
Quiz by
Pontiac
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Last updated: May 12, 2025
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First submittedMay 12, 2025
Times taken41
Average score60.0%
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US State
Size sq. Miles
County
Size sq. Kilometers
CA
20,105.32
San Bernardino
52,072.5
AZ
18,661.21
Coconino
48,332.3
NV
18,158.73
Nye
47,030.9
NV
17,202.94
Elko
44,555.4
AZ
13,469.71
Mohave
34,886.4
AZ
11,218.42
Apache
29,055.6
NV
10,636.77
Lincoln
27,549.1
WY
10,491.17
Sweetwater
27,172.0
CA
10,226.98
Inyo
26,487.8
OR
10,226.49
Harney
26,486.5
AZ
9,959.49
Navajo
25,795.0
OR
9,929.99
Malheur
25,718.6
NV
9,657.87
Humboldt
25,013.8
WY
9,265.8
Fremont
23,998
AZ
9,224.27
Maricopa
23,890.7
AZ
9,188.83
Pima
23,799.0
NV
8,896.6
White Pine
23,042
ID
8,502.48
Idaho
22,021.3
OR
8,358.47
Lake
21,648.3
CA
8,161.42
Kern
21,138.0
AZ
8,127.78
Yavapai
21,050.9
NV
8,090.66
Clark
20,954.7
WY
7,964.03
Carbon
20,626.7
UT
7,933.09
San Juan
20,546.6
ID
7,696.71
Owyhee
19,934.4
US State
Size sq. Miles
County
Size sq. Kilometers
CA
7,303.13
Riverside
18,915.0
UT
7,287.12
Tooele
18,873.6
WY
6,968.51
Park
18,048.4
NM
6,929.03
Carbon
17,946.1
MN
6,859.91
St. Louis
17,767.1
ME
6,828.79
Aroostook
17,686.5
UT
6,828.01
Millard
17,684.5
UT
6,729.03
Box Elder
17,428.1
NM
6,648.71
Socorro
17,220.1
NM
6,627.43
Otero
17,165.0
NV
6,551.32
Washoe
16,967.8
CA
6,347.46
Siskiyou
16,439.8
AZ
6,218.77
Cochise
16,106.5
TX
6,192.78
Brewster
16,039.2
OR
6,135.75
Klamath
15,891.5
NM
6,075.07
Chaves
6,075.07
NV
6,067.55
Pershing
15,714.9
CA
6,017.42
Fresno
15,585.0
NE
6,009.54
Cherry
15,564.6
MI
5,965.96
Keweenaw
15,451.8
NM
5,896.1
Rio Arriba
15,271
MT
5,572.04
Beaverhead
14,431.5
NM
5,538.36
San Juan
14,344.3
NV
5,519.47
Lander
14,295.4
AZ
5,518.96
Yuma
14,294.0
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3 Comments
Ptcairn
+2
Level 68
May 12, 2025
Elko :fire:
thread
+2
Level 67
May 12, 2025
Great quiz! Cody County should be Park County. 48/50 other than that.
Pontiac
+1
Level 61
May 12, 2025
sorry, the source gave me the county seat inbetween the miles/kilomerts and US state the county was in. I will fix the Cody-Park problem
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