Illinois county websites: usability rankings

Name: Project ScanGov Illinois county websites: usability rankings
Creator: ScanGov
License: https://creativecommons.org/licenses/by/4.0/

Usability scores, grades, and the most common failures for 96 Illinois county government websites, from ScanGov homepage scans.

Sites: 96
Last scan: 9/20/2026

Showing Illinois county sites. All U.S. county sites

F 54

Average usability score of 86 fully scanned Illinois county sites

8th

of 48 states, ranked by average usability score

86 of 96

Sites fully scanned. We couldn't fully scan 10, so they're listed without grades

F 49

U.S. county average usability score, 2435 fully scanned sites

Illinois's state site, illinois.gov, ranks 9th of 51 state sites with a B. State rankings.

How Illinois county usability scores are distributed

Smoothed distribution of the 86 fully scanned Illinois county sites, score 0 to 100. Height shows how many sites score near each value.

Illinois average
U.S. county average

View the data table

How Illinois county usability scores are distributed
Score range	Sites
0 to 9	0
10 to 19	0
20 to 29	6
30 to 39	11
40 to 49	26
50 to 59	13
60 to 69	9
70 to 79	12
80 to 89	8
90 to 100	1

Illinois counties by usability grade, compared with all U.S. counties

Share of fully scanned sites in each grade band. Illinois: 86 sites. U.S.: 2435 sites.

IllinoisA (90 to 100): 1% (1 sites)B to C (70 to 89): 23% (20 sites)D to F (below 70): 76% (65 sites)
All U.S. countiesA (90 to 100): 1% (24 sites)B to C (70 to 89): 18% (436 sites)D to F (below 70): 81% (1,975 sites)

A (90 to 100)
B to C (70 to 89)
D to F (below 70)

View the data table

Illinois counties by usability grade, compared with all U.S. counties
Group	A (90 to 100)	B to C (70 to 89)	D to F (below 70)
Illinois	1% (1)	23% (20)	76% (65)
All U.S. counties	1% (24)	18% (436)	81% (1,975)

Top 3 Illinois county sites by usability score

#1 in Illinois · U.S. rank 2

Cook County, IL

A 94 usability

Accessibility A
Botability A
Security A
Usability A

#2 in Illinois · U.S. rank 4

Edgar County, IL

B 88 usability

Accessibility B
Botability B
Security B
Usability B

#2 in Illinois · U.S. rank 4

Greene County, IL

B 88 usability

Accessibility B
Botability A
Security B
Usability B

Most common usability failures among Illinois county sites

Share of the 86 fully scanned Illinois county sites failing each check. A site can fail more than one check. Each check links to its standard and how to fix it.

Open Graph image alt97% (83 of 86 sites)
First Contentful Paint (FCP)66% (57 of 86 sites)
Open Graph description66% (57 of 86 sites)
Page description64% (55 of 86 sites)
Open Graph site name64% (55 of 86 sites)

View the data table

Most common usability failures among Illinois county sites
Check	Share failing	Sites failing
Open Graph image alt	97%	83
First Contentful Paint (FCP)	66%	57
Open Graph description	66%	57
Page description	64%	55
Open Graph site name	64%	55

What each check means

Open Graph image alt. The social media preview image has alt text for screen readers. Screen readers cannot describe shared images.
First Contentful Paint (FCP). The page starts displaying content within 1.8 seconds. Users see blank screen and think site is broken.
Open Graph description. The page has a description for social media previews. Shared links have no description on social media.
Page description. The page has a meta description that summarizes its content for search results. Search results do not show what your page does.
Open Graph site name. The site has a name for social media and browser display. Site name missing in social media shares.

All Illinois county sites by usability score

Illinois county sites ranked by usability score
Rank	Site	Checks passed	Grade
1	cookcountyil.gov Cook County, IL U.S. rank 2	16 of 17 checks pass	A
2	edgarcountyillinois.com Edgar County, IL U.S. rank 4	15 of 17 checks pass	B
2	greenecountyil.org Greene County, IL U.S. rank 4	15 of 17 checks pass	B
2	marshallcountyillinois.gov Marshall County, IL U.S. rank 4	15 of 17 checks pass	B
3	crawfordcountyil.org Crawford County, IL U.S. rank 6	14 of 17 checks pass	B
3	fultoncountyil.gov Fulton County, IL U.S. rank 6	14 of 17 checks pass	B
3	masoncountyil.gov Mason County, IL U.S. rank 6	14 of 17 checks pass	B
3	tazewell-il.gov Tazewell County, IL U.S. rank 6	14 of 17 checks pass	B
3	warrencountyil.gov Warren County, IL U.S. rank 6	14 of 17 checks pass	B
4	alexandercounty.illinois.gov Alexander County, IL U.S. rank 8	13 of 17 checks pass	C
4	browncoil.org Brown County, IL U.S. rank 8	13 of 17 checks pass	C
4	calhouncountyil.gov Calhoun County, IL U.S. rank 8	13 of 17 checks pass	C
4	fayettecountyillinois.gov Fayette County, IL U.S. rank 8	13 of 17 checks pass	C
4	gallatinco.illinois.gov Gallatin County, IL U.S. rank 8	13 of 17 checks pass	C
4	schuylercounty.org Schuyler County, IL U.S. rank 8	13 of 17 checks pass	C
4	starkco.illinois.gov Stark County, IL U.S. rank 8	13 of 17 checks pass	C
5	fordcounty.illinois.gov Ford County, IL U.S. rank 10	12 of 17 checks pass	C
5	hamiltoncountyil.gov Hamilton County, IL U.S. rank 10	12 of 17 checks pass	C
5	macoupincountyil.gov Macoupin County, IL U.S. rank 10	12 of 17 checks pass	C
5	massaccountyil.gov Massac County, IL U.S. rank 10	12 of 17 checks pass	C
5	waynecountyil.gov Wayne County, IL U.S. rank 10	12 of 17 checks pass	C
6	dewittcountyil.gov DeWitt County, IL U.S. rank 12	11 of 17 checks pass	D
6	jaspercountyillinois.gov Jasper County, IL U.S. rank 12	11 of 17 checks pass	D
6	maconcounty.illinois.gov Macon County, IL U.S. rank 12	11 of 17 checks pass	D
6	mercercountyil.org Mercer County, IL U.S. rank 12	11 of 17 checks pass	D
6	moultriecountyil.gov Moultrie County, IL U.S. rank 12	11 of 17 checks pass	D
6	piatt.gov Piatt County, IL U.S. rank 12	11 of 17 checks pass	D
6	pulaskicountyil.net Pulaski County, IL U.S. rank 12	11 of 17 checks pass	D
6	vercounty.org Vermilion County, IL U.S. rank 12	11 of 17 checks pass	D
6	whitecounty-il.gov White County, IL U.S. rank 12	11 of 17 checks pass	D
7	effinghamcountyil.gov Effingham County, IL U.S. rank 14	10 of 17 checks pass	F
7	franklincountyil.gov Franklin County, IL U.S. rank 14	10 of 17 checks pass	F
7	jeffersoncounty.illinois.gov Jefferson County, IL U.S. rank 14	10 of 17 checks pass	F
7	jerseycounty-il.gov Jersey County, IL U.S. rank 14	10 of 17 checks pass	F
7	mcg.mcdonough.il.us McDonough County, IL U.S. rank 14	10 of 17 checks pass	F
7	pikecountyil.org Pike County, IL U.S. rank 14	10 of 17 checks pass	F
7	richlandcounty.illinois.gov Richland County, IL U.S. rank 14	10 of 17 checks pass	F
7	scottcoil.gov Scott County, IL U.S. rank 14	10 of 17 checks pass	F
8	wincoil.gov Winnebago County, IL U.S. rank 15	9 of 16 checks pass	F
9	knoxcountyil.gov Knox County, IL U.S. rank 16	9 of 17 checks pass	F
9	morgancounty-il.com Morgan County, IL U.S. rank 16	9 of 17 checks pass	F
9	randolphcountyil.gov Randolph County, IL U.S. rank 16	9 of 17 checks pass	F
9	stephensoncountyil.gov Stephenson County, IL U.S. rank 16	9 of 17 checks pass	F
10	bondcountyil.gov Bond County, IL U.S. rank 18	8 of 17 checks pass	F
10	bureaucounty-il.gov Bureau County, IL U.S. rank 18	8 of 17 checks pass	F
10	carrollcountyil.gov Carroll County, IL U.S. rank 18	8 of 17 checks pass	F
10	clarkcountyil.org Clark County, IL U.S. rank 18	8 of 17 checks pass	F
10	colesco.illinois.gov Coles County, IL U.S. rank 18	8 of 17 checks pass	F
10	dupagecounty.gov DuPage County, IL U.S. rank 18	8 of 17 checks pass	F
10	grundycountyil.gov Grundy County, IL U.S. rank 18	8 of 17 checks pass	F
10	leecountyil.com Lee County, IL U.S. rank 18	8 of 17 checks pass	F
10	logancountyil.gov Logan County, IL U.S. rank 18	8 of 17 checks pass	F
10	marioncountyil.gov Marion County, IL U.S. rank 18	8 of 17 checks pass	F
10	mcleancountyil.gov McLean County, IL U.S. rank 18	8 of 17 checks pass	F
10	oglecountyil.gov Ogle County, IL U.S. rank 18	8 of 17 checks pass	F
10	putnamil.gov Putnam County, IL U.S. rank 18	8 of 17 checks pass	F
10	salinecounty.illinois.gov Saline County, IL U.S. rank 18	8 of 17 checks pass	F
10	shelbycounty-il.gov Shelby County, IL U.S. rank 18	8 of 17 checks pass	F
10	washingtonco.illinois.gov Washington County, IL U.S. rank 18	8 of 17 checks pass	F
10	willcounty.gov Will County, IL U.S. rank 18	8 of 17 checks pass	F
11	douglascountyil.gov Douglas County, IL U.S. rank 19	7 of 16 checks pass	F
12	boonecountyil.gov Boone County, IL U.S. rank 20	7 of 17 checks pass	F
12	co.cass.il.us Cass County, IL U.S. rank 20	7 of 17 checks pass	F
12	champaigncountyil.gov Champaign County, IL U.S. rank 20	7 of 17 checks pass	F
12	cumberlandcoil.gov Cumberland County, IL U.S. rank 20	7 of 17 checks pass	F
12	livingstoncountyil.gov Livingston County, IL U.S. rank 20	7 of 17 checks pass	F
12	monroecountyil.gov Monroe County, IL U.S. rank 20	7 of 17 checks pass	F
12	montgomerycountyil.gov Montgomery County, IL U.S. rank 20	7 of 17 checks pass	F
12	rockislandcountyil.gov Rock Island County, IL U.S. rank 20	7 of 17 checks pass	F
13	iroquoiscountyil.gov Iroquois County, IL U.S. rank 21	6 of 16 checks pass	F
14	clintonco.illinois.gov Clinton County, IL U.S. rank 22	6 of 17 checks pass	F
14	jacksoncounty-il.gov Jackson County, IL U.S. rank 22	6 of 17 checks pass	F
14	jodaviesscountyil.gov Jo Daviess County, IL U.S. rank 22	6 of 17 checks pass	F
14	kanecountyil.gov Kane County, IL U.S. rank 22	6 of 17 checks pass	F
14	lakecountyil.gov Lake County, IL U.S. rank 22	6 of 17 checks pass	F
14	lasallecountyil.gov LaSalle County, IL U.S. rank 22	6 of 17 checks pass	F
14	madisoncountyil.gov Madison County, IL U.S. rank 22	6 of 17 checks pass	F
14	menardcountyil.gov Menard County, IL U.S. rank 22	6 of 17 checks pass	F
14	peoriacounty.gov Peoria County, IL U.S. rank 22	6 of 17 checks pass	F
14	sangamonil.gov Sangamon County, IL U.S. rank 22	6 of 17 checks pass	F
15	henrycty.com Henry County, IL U.S. rank 24	5 of 17 checks pass	F
15	k3county.net Kankakee County, IL U.S. rank 24	5 of 17 checks pass	F
15	lawrencecounty.illinois.gov Lawrence County, IL U.S. rank 24	5 of 17 checks pass	F
15	co.st-clair.il.us Saint Clair County, IL U.S. rank 24	5 of 17 checks pass	F
15	whitesidecountyil.gov Whiteside County, IL U.S. rank 24	5 of 17 checks pass	F
15	woodford-county.org Woodford County, IL U.S. rank 24	5 of 17 checks pass	F
	adamscountyil.gov Adams County, IL	Not fully scanned, so not graded. We couldn't fully scan your site because it responded without any page content. Status 995	-
	christiancountyil.gov Christian County, IL	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	-
	claycountyillinois.org Clay County, IL	Not fully scanned, so not graded. We weren't able to fully scan your site. Status 403	-
	dekalbcounty.org DeKalb County, IL	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	-
	hancockcounty-il.gov Hancock County, IL	Not fully scanned, so not graded. We couldn't fully scan your site because it responded without any page content. Status 995	-
	kendallcountyil.gov Kendall County, IL	Not fully scanned, so not graded. We couldn't fully scan your site because it responded without any page content. Status 995	-
	mchenrycountyil.gov McHenry County, IL	Not fully scanned, so not graded. We couldn't fully scan your site because it responded without any page content. Status 995	-
	perrycountyil.gov Perry County, IL	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	-
	unioncountyil.gov Union County, IL	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	-
	williamsoncountyil.gov Williamson County, IL	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	-

Rank · Status · Grade

About usability

Optimize content structure so users quickly find what they need.

Why it's important

Well-written pages help people understand laws, services, and procedures without confusion, reducing calls and office visits.

Risks

Users cannot understand your information.

Guidance

What we use to grade usability:

Standards

Grades/scores

Usability grades/scores on Project ScanGov

ScanGov

How ScanGov supports usability

About this data

ScanGov scans the homepage of each county government site on our county list in Illinois. Scores come from the checks listed on standards.scangov.org. Sites were scanned between 8/24/2026 and 9/18/2026; each site's report shows its own scan date. A site counts as fully scanned when its homepage returned successfully and sent the scanner its page content. Averages, grade shares, failure rates, and ranks use fully scanned sites only. We weren't able to fully scan 10 sites because they did not respond, blocked the scanner, or returned no page content. They appear in the table without grades, each with its scan status, and are left out of every figure. Grades follow the ScanGov grade scale, and rank follows the ScanGov ranking method. The full dataset, including every county's raw results, is published in the ScanGov data repository.