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The 100 least populous US counties

Loving County48.0Kalawao County81.0King County215Kenedy County330McPherson County376Arthur County423Blaine County454Petroleum County525Borden County557McMullen County565Grant County573Loup County582Thomas County634Harding County635Slope County660
#CountyPopulation
1Loving County48
2Kalawao County81
3King County215
4Kenedy County330
5McPherson County376
6Arthur County423
7Blaine County454
8Petroleum County525
9Borden County557
10McMullen County565
11Grant County573
12Loup County582
13Thomas County634
14Harding County635
15Slope County660
16Banner County665
17Yakutat City and Borough690
18Logan County694
19Hooker County698
20Kent County703
21Terrell County718
22Esmeralda County720
23Treasure County739
24Hinsdale County747
25Clark County794
26Wheeler County808
27Keya Paha County819
28San Juan County821
29Roberts County837
30Hayes County846
31Golden Valley County863
32Jones County874
33Bristol Bay Borough884
34Wibaux County911
35Mineral County933
36Daggett County956
37Motley County1,015
38Foard County1,053
39Billings County1,063
40Alpine County1,099
41Sioux County1,099
42Prairie County1,112
43Skagway Municipality1,119
44Greeley County1,152
45Glasscock County1,153
46Garfield County1,181
47Hyde County1,215
48Stonewall County1,235
49Rock County1,241
50Camas County1,247
51Cottle County1,263
52Sheridan County1,268
53Jackson County1,273
54Issaquena County1,295
55Lake and Peninsula Borough1,315
56Harding County1,325
57Campbell County1,342
58Edwards County1,383
59Sterling County1,387
60Kiowa County1,392
61Carter County1,399
62Wheeler County1,456
63Sully County1,468
64Wallace County1,472
65Lane County1,482
66Briscoe County1,494
67Irion County1,526
68Throckmorton County1,532
69Piute County1,534
70Dundy County1,581
71Taliaferro County1,620
72Denali Borough1,621
73Daniels County1,625
74De Baca County1,657
75Hodgeman County1,673
76Jerauld County1,689
77Comanche County1,694
78Boyd County1,700
79Garfield County1,707
80Cheyenne County1,712
81McCone County1,717
82Dickens County1,725
83Powder River County1,734
84Steele County1,767
85Jeff Davis County1,778
86Golden Valley County1,795
87Garden County1,804
88Gosper County1,808
89Armstrong County1,809
90Oldham County1,823
91Buffalo County1,825
92Haakon County1,834
93Mellette County1,834
94Worth County1,872
95Clark County1,873
96Eureka County1,877
97Logan County1,880
98Oliver County1,882
99Deuel County1,892
100Menard County1,911

Top 100 entries with a recorded value; entries without data are not ranked.