Montana county websites: security rankings

Security scores, grades, and the most common failures for 52 Montana county websites, from ScanGov homepage scans.

  • Sites: 52
  • Last scan: 11/7/2026

Showing Montana county sites. All U.S. county sites

B 86

Average security score of 47 fully scanned Montana county sites

8th

of 49 states, ranked by average security score

47 of 52

Sites fully scanned. We couldn't fully scan 5, so they're listed without grades

B 83

U.S. county average security score, 2467 fully scanned sites

Montana's state site, mt.gov, ranks 18th of 51 state sites with a C. State rankings.

How Montana county security scores are distributed

Smoothed distribution of the 47 fully scanned Montana county sites, score 0 to 100. Height shows how many sites score near each value.

  • Montana average
  • U.S. county average
View the data table
Score rangeSites
0 to 90
10 to 190
20 to 290
30 to 390
40 to 490
50 to 591
60 to 694
70 to 799
80 to 8918
90 to 10015

Montana counties by security grade

Each county with a site on our list is colored by that site's grade. Select a county to open its report. The table lists every site.

Beaverhead County, MT: grade B, security score 87 Big Horn County, MT: grade B, security score 87 Blaine County, MT: grade B, security score 87 Broadwater County, MT: grade C, security score 75 Carbon County, MT: grade A, security score 100 Carter County, MT: grade D, security score 66 Cascade County, MT: grade A, security score 100 Chouteau County: not scanned Custer County, MT: grade B, security score 87 Daniels County, MT: grade B, security score 87 Dawson County, MT: not fully scanned, so not graded (status 998) Deer Lodge County, MT: grade B, security score 87 Fallon County, MT: grade C, security score 75 Fergus County, MT: grade A, security score 100 Flathead County, MT: grade A, security score 100 Gallatin County, MT: grade A, security score 100 Garfield County, MT: grade B, security score 87 Glacier County, MT: not fully scanned, so not graded (status 999) Golden Valley County, MT: grade C, security score 75 Granite County, MT: grade F, security score 55 Hill County, MT: grade D, security score 62 Jefferson County, MT: grade B, security score 87 Judith Basin County, MT: grade B, security score 87 Lake County, MT: grade A, security score 100 Lewis and Clark County, MT: grade B, security score 87 Liberty County, MT: grade A, security score 100 Lincoln County, MT: grade C, security score 75 McCone County, MT: grade A, security score 100 Madison County, MT: grade A, security score 100 Meagher County, MT: grade D, security score 66 Mineral County, MT: grade C, security score 75 Missoula County, MT: grade A, security score 100 Musselshell County, MT: not fully scanned, so not graded (status 403) Park County, MT: grade B, security score 87 Petroleum County, MT: grade C, security score 75 Pondera County, MT: grade A, security score 100 Powder River County, MT: grade C, security score 75 Powell County, MT: not fully scanned, so not graded (status 996) Prairie County: not scanned Ravalli County, MT: grade A, security score 100 Richland County, MT: grade D, security score 62 Roosevelt County, MT: grade C, security score 75 Rosebud County, MT: grade B, security score 87 Sanders County, MT: grade B, security score 87 Sheridan County, MT: grade B, security score 87 Silver Bow County: not scanned Stillwater County, MT: grade A, security score 100 Sweet Grass County, MT: grade B, security score 87 Teton County, MT: grade C, security score 75 Toole County, MT: grade B, security score 87 Treasure County, MT: grade A, security score 100 Valley County, MT: grade A, security score 100 Wheatland County, MT: grade B, security score 87 Yellowstone County, MT: grade B, security score 87
  • A (90 to 100)
  • B to C (70 to 89)
  • D to F (below 70)
  • Not fully scanned
  • No site on our list

1 of the 52 sites on our list could not be matched to a county boundary and appear only in the table.

Montana counties by security grade, compared with all U.S. counties

Share of fully scanned sites in each grade band. Montana: 47 sites. U.S.: 2467 sites.

  1. Montana
  2. All U.S. counties
  • A (90 to 100)
  • B to C (70 to 89)
  • D to F (below 70)
View the data table
GroupA (90 to 100)B to C (70 to 89)D to F (below 70)
Montana32% (15)57% (27)11% (5)
All U.S. counties21% (530)67% (1,642)12% (295)

Top 3 Montana county sites by security score

#1 in Montana · U.S. rank 1

Carbon County, MT

A 100 security

  • Accessibility B
  • Botability C
  • Security A
  • Usability C
  • Readability A

#1 in Montana · U.S. rank 1

Cascade County, MT

A 100 security

  • Accessibility B
  • Botability B
  • Security A
  • Usability F
  • Readability A

#1 in Montana · U.S. rank 1

Fergus County, MT

A 100 security

  • Accessibility A
  • Botability D
  • Security A
  • Usability F
  • Readability A

Most common security failures among Montana county sites

Share of the 47 fully scanned Montana county sites failing each check. A site can fail more than one check. Each check links to its standard and how to fix it.

  1. X-Content-Type-Options51%
  2. Errors in the console32%
  3. Sponsored top-level domain (sTLD)21%
  4. Security.txt6%
View the data table
CheckShare failingSites failing
X-Content-Type-Options51%24
Errors in the console32%15
Sponsored top-level domain (sTLD)21%10
Security.txt6%3

What each check means

  • X-Content-Type-Options. The site tells browsers not to guess the type of files it serves. Browsers might run dangerous files by mistake.
  • Errors in the console. The page loads without JavaScript or network errors. Site may have hidden bugs that break features.
  • Sponsored top-level domain (sTLD). The site uses a government-issued domain (.gov, .edu, or .mil). People cannot tell if your site is real government.
  • Security.txt. The site has a security.txt file so researchers know how to report issues. Security researchers cannot report problems to you.

All Montana county sites by security score

Rank Site Checks passed Grade
1 carbonmt.gov
Carbon County, MT U.S. rank 1 		8 of 8 checks pass A
1 cascadecountymt.gov
Cascade County, MT U.S. rank 1 		8 of 8 checks pass A
1 fergusmt.gov
Fergus County, MT U.S. rank 1 		8 of 8 checks pass A
1 flatheadcounty.gov
Flathead County, MT U.S. rank 1 		8 of 8 checks pass A
1 gallatinmt.gov
Gallatin County, MT U.S. rank 1 		8 of 8 checks pass A
1 lakemt.gov
Lake County, MT U.S. rank 1 		8 of 8 checks pass A
1 libertycountymt.gov
Liberty County, MT U.S. rank 1 		8 of 8 checks pass A
1 madisoncountymt.gov
Madison County, MT U.S. rank 1 		8 of 8 checks pass A
1 mcconecountymt.gov
McCone County, MT U.S. rank 1 		8 of 8 checks pass A
1 missoulacounty.gov
Missoula County, MT U.S. rank 1 		8 of 8 checks pass A
1 ponderacountymt.gov
Pondera County, MT U.S. rank 1 		8 of 8 checks pass A
1 ravallicounty.gov
Ravalli County, MT U.S. rank 1 		9 of 9 checks pass A
1 stillwatercountymt.gov
Stillwater County, MT U.S. rank 1 		8 of 8 checks pass A
1 treasurecountymt.gov
Treasure County, MT U.S. rank 1 		8 of 8 checks pass A
1 valleycountymt.gov
Valley County, MT U.S. rank 1 		8 of 8 checks pass A
2 beaverheadcountymt.gov
Beaverhead County, MT U.S. rank 3 		7 of 8 checks pass B
2 bighorncountymt.gov
Big Horn County, MT U.S. rank 3 		7 of 8 checks pass B
2 blainecounty-mt.gov
Blaine County, MT U.S. rank 3 		7 of 8 checks pass B
2 custercountymt.gov
Custer County, MT U.S. rank 3 		7 of 8 checks pass B
2 danielscountymt.gov
Daniels County, MT U.S. rank 3 		7 of 8 checks pass B
2 adlc.us
Deer Lodge County, MT U.S. rank 3 		7 of 8 checks pass B
2 garfieldcountymt.gov
Garfield County, MT U.S. rank 3 		7 of 8 checks pass B
2 jeffersoncounty-mt.gov
Jefferson County, MT U.S. rank 3 		7 of 8 checks pass B
2 jbcountymt.gov
Judith Basin County, MT U.S. rank 3 		7 of 8 checks pass B
2 lccountymt.gov
Lewis and Clark County, MT U.S. rank 3 		7 of 8 checks pass B
2 parkcountymt.gov
Park County, MT U.S. rank 3 		7 of 8 checks pass B
2 rosebudcountymt.gov
Rosebud County, MT U.S. rank 3 		7 of 8 checks pass B
2 co.sanders.mt.us
Sanders County, MT U.S. rank 3 		7 of 8 checks pass B
2 sheridancountymt.gov
Sheridan County, MT U.S. rank 3 		7 of 8 checks pass B
2 sgcountymt.gov
Sweet Grass County, MT U.S. rank 3 		7 of 8 checks pass B
2 toolecountymt.gov
Toole County, MT U.S. rank 3 		7 of 8 checks pass B
2 wheatlandcomt.gov
Wheatland County, MT U.S. rank 3 		7 of 8 checks pass B
2 yellowstonecountymt.gov
Yellowstone County, MT U.S. rank 3 		7 of 8 checks pass B
3 broadwatercountymt.gov
Broadwater County, MT U.S. rank 6 		6 of 8 checks pass C
3 falloncountymt.gov
Fallon County, MT U.S. rank 6 		6 of 8 checks pass C
3 goldenvalleycountymt.org
Golden Valley County, MT U.S. rank 6 		6 of 8 checks pass C
3 lincolncountymt.us
Lincoln County, MT U.S. rank 6 		6 of 8 checks pass C
3 co.mineral.mt.us
Mineral County, MT U.S. rank 6 		6 of 8 checks pass C
3 petroleumcountymt.org
Petroleum County, MT U.S. rank 6 		6 of 8 checks pass C
3 prco.mt.gov
Powder River County, MT U.S. rank 6 		6 of 8 checks pass C
3 rooseveltcountymt.gov
Roosevelt County, MT U.S. rank 6 		6 of 8 checks pass C
3 tetoncountymt.gov
Teton County, MT U.S. rank 6 		6 of 8 checks pass C
4 cartercountymt.gov
Carter County, MT U.S. rank 8 		6 of 9 checks pass D
4 meagherco.com
Meagher County, MT U.S. rank 8 		6 of 9 checks pass D
5 hillcounty.us
Hill County, MT U.S. rank 9 		5 of 8 checks pass D
5 richland.org
Richland County, MT U.S. rank 9 		5 of 8 checks pass D
6 granitecountymt.us
Granite County, MT U.S. rank 11 		5 of 9 checks pass F
cartercountymontana.squarespace.com
Carter County, MT 		Not fully scanned, so not graded. We didn't scan your site because its robots.txt asked us not to. Status 998 -
dawsonmt.gov
Dawson County, MT 		Not fully scanned, so not graded. We didn't scan your site because its robots.txt asked us not to. Status 998 -
glaciercountymt.gov
Glacier County, MT 		Not fully scanned, so not graded. We weren't able to fully scan your site. Status 999 -
musselshellcounty.org
Musselshell County, MT 		Not fully scanned, so not graded. We weren't able to fully scan your site. Status 403 -
powellcountymt.gov
Powell County, MT 		Not fully scanned, so not graded. We couldn't scan your site because it showed our bot a captcha or browser check instead of the page. Status 996 -

About this data

ScanGov scans the homepage of each county site on our county list in Montana. Scores come from the checks in the ScanGov standards. Sites were scanned between 10/27/2026 and 11/6/2026. Each site's report shows its own scan date. A site counts as fully scanned when its homepage loaded and sent us its page content. Averages, grade shares, failure rates, and ranks use fully scanned sites only. We could not fully scan 5 sites. They did not respond, blocked the scanner, or sent no page content. They appear in the table without grades, with their scan status, and are left out of every figure. Grades follow the ScanGov grade scale. Rank follows the ScanGov ranking method. The full dataset, with every county's raw results, is in the ScanGov data repository.

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