Iowa county websites: security rankings

Security scores, grades, and the most common failures for 98 Iowa county websites, from ScanGov homepage scans.

  • Sites: 98
  • Last scan: 11/7/2026

Showing Iowa county sites. All U.S. county sites

B 87

Average security score of 78 fully scanned Iowa county sites

7th

of 49 states, ranked by average security score

78 of 98

Sites fully scanned. We couldn't fully scan 20, so they're listed without grades

B 83

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

Iowa's state site, iowa.gov, ranks 2nd of 51 state sites with an A. State rankings.

How Iowa county security scores are distributed

Smoothed distribution of the 78 fully scanned Iowa county sites, score 0 to 100. Height shows how many sites score near each value.

  • Iowa 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 590
60 to 690
70 to 7918
80 to 8943
90 to 10017

Iowa 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.

Adair County, IA: grade B, security score 87 Adams County, IA: grade B, security score 87 Allamakee County, IA: grade B, security score 87 Appanoose County, IA: grade A, security score 100 Audubon County, IA: grade C, security score 75 Benton County, IA: grade B, security score 87 Black Hawk County, IA: grade A, security score 100 Boone County, IA: grade B, security score 87 Bremer County, IA: grade B, security score 85 Buchanan County, IA: grade B, security score 87 Buena Vista County, IA: grade C, security score 77 Butler County, IA: grade B, security score 87 Calhoun County, IA: grade B, security score 87 Carroll County, IA: not fully scanned, so not graded (status 996) Cass County, IA: grade A, security score 100 Cedar County, IA: grade B, security score 87 Cerro Gordo County, IA: grade A, security score 100 Cherokee County, IA: not fully scanned, so not graded (status 998) Chickasaw County, IA: grade C, security score 75 Clarke County, IA: grade B, security score 87 Clay County, IA: grade B, security score 87 Clayton County, IA: grade B, security score 87 Clinton County, IA: grade C, security score 75 Crawford County, IA: grade B, security score 87 Dallas County, IA: grade A, security score 100 Davis County, IA: grade B, security score 87 Decatur County, IA: not fully scanned, so not graded (status 996) Delaware County, IA: grade B, security score 87 Des Moines County, IA: grade B, security score 87 Dickinson County, IA: not fully scanned, so not graded (status 994) Dubuque County, IA: grade A, security score 100 Emmet County, IA: not fully scanned, so not graded (status 996) Fayette County, IA: grade B, security score 87 Floyd County, IA: grade A, security score 100 Franklin County, IA: grade C, security score 75 Fremont County, IA: grade A, security score 100 Greene County, IA: not fully scanned, so not graded (status 996) Grundy County, IA: grade A, security score 100 Guthrie County, IA: not fully scanned, so not graded (status 996) Hamilton County, IA: not fully scanned, so not graded (status 998) Hancock County, IA: grade C, security score 75 Hardin County, IA: not fully scanned, so not graded (status 996) Harrison County, IA: grade B, security score 87 Henry County, IA: grade B, security score 87 Howard County, IA: grade B, security score 87 Humboldt County, IA: grade C, security score 75 Ida County, IA: grade C, security score 75 Iowa County, IA: grade B, security score 87 Jackson County, IA: grade B, security score 87 Jasper County, IA: grade B, security score 85 Jefferson County, IA: not fully scanned, so not graded (status 999) Johnson County, IA: grade B, security score 87 Jones County, IA: grade B, security score 87 Keokuk County, IA: grade C, security score 75 Kossuth County, IA: grade C, security score 75 Lee County, IA: not fully scanned, so not graded (status 996) Linn County, IA: grade B, security score 87 Louisa County, IA: grade A, security score 100 Lucas County, IA: grade B, security score 87 Lyon County, IA: grade B, security score 87 Madison County, IA: grade B, security score 87 Mahaska County, IA: grade C, security score 75 Marion County, IA: grade B, security score 87 Marshall County, IA: grade C, security score 75 Mills County, IA: grade A, security score 100 Mitchell County, IA: grade B, security score 87 Monona County, IA: grade B, security score 87 Monroe County, IA: grade B, security score 87 Montgomery County, IA: not fully scanned, so not graded (status 996) Muscatine County, IA: grade B, security score 87 O'Brien County, IA: not fully scanned, so not graded (status 999) Osceola County, IA: not fully scanned, so not graded (status 996) Page County, IA: grade B, security score 87 Palo Alto County, IA: not fully scanned, so not graded (status 999) Plymouth County, IA: not fully scanned, so not graded (status 999) Pocahontas County, IA: not fully scanned, so not graded (status 403) Polk County, IA: not fully scanned, so not graded (status 403) Pottawattamie County, IA: grade B, security score 88 Poweshiek County, IA: grade B, security score 87 Ringgold County, IA: grade B, security score 87 Sac County, IA: grade B, security score 87 Scott County, IA: grade A, security score 100 Shelby County, IA: grade C, security score 75 Sioux County, IA: not fully scanned, so not graded (status 994) Story County, IA: grade A, security score 100 Tama County, IA: grade C, security score 75 Taylor County, IA: grade B, security score 87 Union County, IA: grade A, security score 100 Van Buren County, IA: grade C, security score 75 Wapello County, IA: grade C, security score 75 Warren County, IA: grade A, security score 100 Washington County, IA: grade A, security score 100 Wayne County, IA: grade A, security score 100 Webster County, IA: not fully scanned, so not graded (status 403) Winnebago County, IA: grade B, security score 87 Winneshiek County: not scanned Woodbury County, IA: grade B, security score 87 Worth County, IA: grade C, security score 75 Wright County, IA: grade C, security score 75
  • A (90 to 100)
  • B to C (70 to 89)
  • D to F (below 70)
  • Not fully scanned
  • No site on our list

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

Share of fully scanned sites in each grade band. Iowa: 78 sites. U.S.: 2467 sites.

  1. Iowa
  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)
Iowa22% (17)78% (61)0% (0)
All U.S. counties21% (530)67% (1,642)12% (295)

Top 3 Iowa county sites by security score

#1 in Iowa · U.S. rank 1

Appanoose County, IA

A 100 security

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

#1 in Iowa · U.S. rank 1

Black Hawk County, IA

A 100 security

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

#1 in Iowa · U.S. rank 1

Cass County, IA

A 100 security

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

Most common security failures among Iowa county sites

Share of the 78 fully scanned Iowa 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-Options59%
  2. Errors in the console38%
  3. Sponsored top-level domain (sTLD)3%
  4. Security.txt1%
View the data table
CheckShare failingSites failing
X-Content-Type-Options59%46
Errors in the console38%30
Sponsored top-level domain (sTLD)3%2
Security.txt1%1

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 Iowa county sites by security score

Rank Site Checks passed Grade
1 appanoosecounty.iowa.gov
Appanoose County, IA U.S. rank 1 		8 of 8 checks pass A
1 blackhawkcounty.iowa.gov
Black Hawk County, IA U.S. rank 1 		8 of 8 checks pass A
1 casscountyia.gov
Cass County, IA U.S. rank 1 		8 of 8 checks pass A
1 cerrogordo.gov
Cerro Gordo County, IA U.S. rank 1 		8 of 8 checks pass A
1 dallascountyiowa.gov
Dallas County, IA U.S. rank 1 		8 of 8 checks pass A
1 dubuquecountyiowa.gov
Dubuque County, IA U.S. rank 1 		8 of 8 checks pass A
1 floydco.iowa.gov
Floyd County, IA U.S. rank 1 		8 of 8 checks pass A
1 fremontcountyia.gov
Fremont County, IA U.S. rank 1 		8 of 8 checks pass A
1 grundycountyiowa.gov
Grundy County, IA U.S. rank 1 		8 of 8 checks pass A
1 louisacountyia.gov
Louisa County, IA U.S. rank 1 		8 of 8 checks pass A
1 millscountyiowa.gov
Mills County, IA U.S. rank 1 		8 of 8 checks pass A
1 scottcountyiowa.gov
Scott County, IA U.S. rank 1 		8 of 8 checks pass A
1 storycountyiowa.gov
Story County, IA U.S. rank 1 		8 of 8 checks pass A
1 unioncountyiowa.gov
Union County, IA U.S. rank 1 		8 of 8 checks pass A
1 warrencountyia.gov
Warren County, IA U.S. rank 1 		8 of 8 checks pass A
1 washingtoncounty.iowa.gov
Washington County, IA U.S. rank 1 		8 of 8 checks pass A
1 waynecounty.iowa.gov
Wayne County, IA U.S. rank 1 		8 of 8 checks pass A
2 pottcounty-ia.gov
Pottawattamie County, IA U.S. rank 2 		8 of 9 checks pass B
3 adaircounty.iowa.gov
Adair County, IA U.S. rank 3 		7 of 8 checks pass B
3 adamscounty.iowa.gov
Adams County, IA U.S. rank 3 		7 of 8 checks pass B
3 allamakeecounty.iowa.gov
Allamakee County, IA U.S. rank 3 		7 of 8 checks pass B
3 bentoncountyia.gov
Benton County, IA U.S. rank 3 		7 of 8 checks pass B
3 boonecounty.iowa.gov
Boone County, IA U.S. rank 3 		7 of 8 checks pass B
3 buchanancounty.iowa.gov
Buchanan County, IA U.S. rank 3 		7 of 8 checks pass B
3 butlercounty.iowa.gov
Butler County, IA U.S. rank 3 		7 of 8 checks pass B
3 calhouncounty.iowa.gov
Calhoun County, IA U.S. rank 3 		7 of 8 checks pass B
3 cedarcounty.iowa.gov
Cedar County, IA U.S. rank 3 		7 of 8 checks pass B
3 clarkecounty.iowa.gov
Clarke County, IA U.S. rank 3 		7 of 8 checks pass B
3 claycounty.iowa.gov
Clay County, IA U.S. rank 3 		7 of 8 checks pass B
3 claytoncountyia.gov
Clayton County, IA U.S. rank 3 		7 of 8 checks pass B
3 crawfordcounty.iowa.gov
Crawford County, IA U.S. rank 3 		7 of 8 checks pass B
3 daviscountyiowa.gov
Davis County, IA U.S. rank 3 		7 of 8 checks pass B
3 delawarecounty.iowa.gov
Delaware County, IA U.S. rank 3 		7 of 8 checks pass B
3 desmoinescounty.iowa.gov
Des Moines County, IA U.S. rank 3 		7 of 8 checks pass B
3 fayettecounty.iowa.gov
Fayette County, IA U.S. rank 3 		7 of 8 checks pass B
3 harrisoncounty.iowa.gov
Harrison County, IA U.S. rank 3 		7 of 8 checks pass B
3 henrycounty.iowa.gov
Henry County, IA U.S. rank 3 		7 of 8 checks pass B
3 howardcounty.iowa.gov
Howard County, IA U.S. rank 3 		7 of 8 checks pass B
3 iowacounty.iowa.gov
Iowa County, IA U.S. rank 3 		7 of 8 checks pass B
3 jacksoncounty.iowa.gov
Jackson County, IA U.S. rank 3 		7 of 8 checks pass B
3 johnsoncountyiowa.gov
Johnson County, IA U.S. rank 3 		7 of 8 checks pass B
3 jonescountyiowa.gov
Jones County, IA U.S. rank 3 		7 of 8 checks pass B
3 linncountyiowa.gov
Linn County, IA U.S. rank 3 		7 of 8 checks pass B
3 lucascounty.iowa.gov
Lucas County, IA U.S. rank 3 		7 of 8 checks pass B
3 lyoncounty.iowa.gov
Lyon County, IA U.S. rank 3 		7 of 8 checks pass B
3 madisoncounty.iowa.gov
Madison County, IA U.S. rank 3 		7 of 8 checks pass B
3 marioncountyiowa.gov
Marion County, IA U.S. rank 3 		7 of 8 checks pass B
3 mitchellcounty.iowa.gov
Mitchell County, IA U.S. rank 3 		7 of 8 checks pass B
3 mononacountyiowa.gov
Monona County, IA U.S. rank 3 		7 of 8 checks pass B
3 monroecounty.iowa.gov
Monroe County, IA U.S. rank 3 		7 of 8 checks pass B
3 muscatinecountyiowa.gov
Muscatine County, IA U.S. rank 3 		7 of 8 checks pass B
3 pagecounty.iowa.gov
Page County, IA U.S. rank 3 		7 of 8 checks pass B
3 poweshiekcountyiowa.gov
Poweshiek County, IA U.S. rank 3 		7 of 8 checks pass B
3 ringgoldcounty.iowa.gov
Ringgold County, IA U.S. rank 3 		7 of 8 checks pass B
3 saccountyiowa.gov
Sac County, IA U.S. rank 3 		7 of 8 checks pass B
3 taylorcounty.iowa.gov
Taylor County, IA U.S. rank 3 		7 of 8 checks pass B
3 winnebagocountyiowa.gov
Winnebago County, IA U.S. rank 3 		7 of 8 checks pass B
3 woodburycountyiowa.gov
Woodbury County, IA U.S. rank 3 		7 of 8 checks pass B
4 bremercounty.iowa.gov
Bremer County, IA U.S. rank 4 		6 of 7 checks pass B
4 jasperia.org
Jasper County, IA U.S. rank 4 		6 of 7 checks pass B
5 buenavistacounty.iowa.gov
Buena Vista County, IA U.S. rank 5 		7 of 9 checks pass C
6 auduboncountyia.gov
Audubon County, IA U.S. rank 6 		6 of 8 checks pass C
6 chickasawcounty.iowa.gov
Chickasaw County, IA U.S. rank 6 		6 of 8 checks pass C
6 clintoncounty-ia.gov
Clinton County, IA U.S. rank 6 		6 of 8 checks pass C
6 franklincountyia.gov
Franklin County, IA U.S. rank 6 		6 of 8 checks pass C
6 hancockcountyia.gov
Hancock County, IA U.S. rank 6 		6 of 8 checks pass C
6 humboldtcounty.iowa.gov
Humboldt County, IA U.S. rank 6 		6 of 8 checks pass C
6 idacounty.iowa.gov
Ida County, IA U.S. rank 6 		6 of 8 checks pass C
6 keokukcounty.iowa.gov
Keokuk County, IA U.S. rank 6 		6 of 8 checks pass C
6 kossuthcounty.iowa.gov
Kossuth County, IA U.S. rank 6 		6 of 8 checks pass C
6 mahaskacountyia.gov
Mahaska County, IA U.S. rank 6 		6 of 8 checks pass C
6 marshallcountyia.gov
Marshall County, IA U.S. rank 6 		6 of 8 checks pass C
6 shelbycounty.iowa.gov
Shelby County, IA U.S. rank 6 		6 of 8 checks pass C
6 tamacounty.iowa.gov
Tama County, IA U.S. rank 6 		6 of 8 checks pass C
6 vanburencounty.iowa.gov
Van Buren County, IA U.S. rank 6 		6 of 8 checks pass C
6 wapellocounty.org
Wapello County, IA U.S. rank 6 		6 of 8 checks pass C
6 worthcountyiowa.gov
Worth County, IA U.S. rank 6 		6 of 8 checks pass C
6 wrightcounty.iowa.gov
Wright County, IA U.S. rank 6 		6 of 8 checks pass C
carrollcountyiowa.gov
Carroll County, IA 		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 -
cherokeecounty.iowa.gov
Cherokee County, IA 		Not fully scanned, so not graded. We didn't scan your site because its robots.txt asked us not to. Status 998 -
decaturcountyiowa.gov
Decatur County, IA 		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 -
dickinsoncountyiowa.gov
Dickinson County, IA 		Not fully scanned, so not graded. We couldn't scan your site because the page never finished loading in our browser. Status 994 -
emmetcountyia.gov
Emmet County, IA 		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 -
co.greene.ia.us
Greene County, IA 		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 -
guthriecounty.gov
Guthrie County, IA 		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 -
hamiltoncounty.iowa.gov
Hamilton County, IA 		Not fully scanned, so not graded. We didn't scan your site because its robots.txt asked us not to. Status 998 -
hardincountyia.gov
Hardin County, IA 		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 -
jeffersoncounty.iowa.gov
Jefferson County, IA 		Not fully scanned, so not graded. We weren't able to fully scan your site. Status 999 -
leecounty.org
Lee County, IA 		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 -
montgomerycountyia.gov
Montgomery County, IA 		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 -
obriencounty.iowa.gov
O'Brien County, IA 		Not fully scanned, so not graded. We weren't able to fully scan your site. Status 999 -
osceolacountyia.gov
Osceola County, IA 		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 -
paloaltocounty.iowa.gov
Palo Alto County, IA 		Not fully scanned, so not graded. We weren't able to fully scan your site. Status 999 -
plymouthcountyiowa.gov
Plymouth County, IA 		Not fully scanned, so not graded. We weren't able to fully scan your site. Status 999 -
pocahontascounty.iowa.gov
Pocahontas County, IA 		Not fully scanned, so not graded. We weren't able to fully scan your site. Status 403 -
polkcountyiowa.gov
Polk County, IA 		Not fully scanned, so not graded. We weren't able to fully scan your site. Status 403 -
siouxcountyia.gov
Sioux County, IA 		Not fully scanned, so not graded. We couldn't scan your site because the page never finished loading in our browser. Status 994 -
webstercountyia.gov
Webster County, IA 		Not fully scanned, so not graded. We weren't able to fully scan your site. Status 403 -

About this data

ScanGov scans the homepage of each county site on our county list in Iowa. Scores come from the checks in the ScanGov standards. Sites were scanned between 9/28/2026 and 11/7/2026. 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 20 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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