Montana - County Infection Estimates

See state-wide estimates here.

Click on a county name to view the infections estimates for that county.

See the Counties Summary page for a searchable and sortable table.

Note: Due to the inherent lag between infections and reporting of cases, our estimates of infections are as of 14 days ago.

Last updated: January 22, 2021

FIPS Code County Population Confirmed Cases % Currently Infected % Total Infected
30111 Yellowstone 161,300 14,868 1.4 30.1
30063 Missoula 119,600 7,363 1.8 19.9
30031 Gallatin 114,434 10,917 3.1 31.3
30029 Flathead 103,806 9,764 1.8 30.6
30013 Cascade 81,366 7,196 1.7 29.3
30049 Lewis and Clark 69,432 5,637 2.5 26.2
30081 Ravalli 43,806 2,390 1.2 17.9
30093 Silver Bow 34,915 3,301 1.6 31.3
30047 Lake 30,458 1,748 2.1 18.5
30053 Lincoln 19,980 1,333 2.7 21.2
30067 Park 16,606 1,005 1.8 19.7
30041 Hill 16,484 1,792 2.1 35.8
30035 Glacier 13,753 1,410 1.2 33.1
30003 Big Horn 13,319 2,235 3.5 53.9
30043 Jefferson 12,221 907 2.2 23.8
30089 Sanders 12,113 530 1.6 14.1
30017 Custer 11,402 1,086 2.2 31.2
30027 Fergus 11,050 949 2.1 28.4
30085 Roosevelt 11,004 1,429 0.7 42.6
30083 Richland 10,803 953 1.5 28.7
30009 Carbon 10,725 757 1.6 23.2
30095 Stillwater 9,642 605 1.4 20.6
30001 Beaverhead 9,453 839 1.7 29.1
30023 Deer Lodge 9,140 940 1.8 33.0
30087 Rosebud 8,937 1,080 1.4 40.1
30021 Dawson 8,613 996 1.4 38.0
30057 Madison 8,600 622 3.0 23.5
30105 Valley 7,396 712 2.1 31.6
30077 Powell 6,890 851 1.9 41.5
30005 Blaine 6,681 624 0.6 31.2
30007 Broadwater 6,237 344 1.8 18.3
30099 Teton 6,147 364 1.6 18.7
30073 Pondera 5,911 423 1.1 23.1
30015 Chouteau 5,635 428 2.4 25.0
30101 Toole 4,736 688 0.6 49.9
30065 Musselshell 4,633 283 1.0 20.4
30061 Mineral 4,397 208 1.6 15.1
30071 Phillips 3,954 463 1.4 37.6
30097 Sweet Grass 3,737 328 0.8 29.3
30039 Granite 3,379 181 1.1 17.6
30091 Sheridan 3,309 375 1.2 38.0
30025 Fallon 2,846 271 0.3 32.8
30051 Liberty 2,337 103 0.3 15.0
30107 Wheatland 2,126 153 1.4 23.5
30045 Judith Basin 2,007 82 0.4 13.5
30059 Meagher 1,862 114 0.2 20.7
30019 Daniels 1,690 179 5.2 33.4
30075 Powder River 1,682 107 0.5 20.8
30055 McCone 1,664 152 1.2 29.8
30033 Garfield 1,258 74 0.4 20.2
30011 Carter 1,252 139 0.6 37.9
30079 Prairie 1,077 127 0.6 39.7
30109 Wibaux 969 113 0.0 39.0
30037 Golden Valley 821 49 1.8 19.8
30103 Treasure 696 51 2.4 23.4
30069 Petroleum 487 11 0.3 7.8