Which county in Illinois has the lowest wildfire risk?

Cook has the lowest wildfire risk in Illinois, at 7.9.

What is the wildfire risk in Cook?

Cook is ranked #1 in Illinois for wildfire risk, at 7.9.

What are the top counties in Illinois for wildfire risk?

Cook (7.9), then DuPage (18.1), and Rock Island (23.3). The full top 25 is in the table on this page.

How is this wildfire risk ranking calculated?

Counties in Illinois are ranked by wildfire risk (FEMA National Risk Index, FEMA NRI v1.20), lowest first. Values describe the county, not an individual property. Source vintage is shown on the page.

How does Illinois compare to the rest of the US for wildfire risk?

This list is Illinois only. See the national ranking of the lowest counties for wildfire risk at hearthmap.app/best/lowest-wildfire-risk.

Lowest Wildfire Risk Counties in Illinois (2026)

Lowest counties for wildfire risk in Illinois

Top 25 of 102 counties with data.

Ranked by wildfire risk (FEMA National Risk Index, FEMA NRI v1.20), lowest first.

Lowest counties for wildfire risk in Illinois

Rank	County	Value
01	Cook7.9 County page
02	DuPage18.1 County page
03	Rock Island23.3 County page
04	Warren23.6 County page
05	Cass26.2 County page
06	Greene26.6 County page
07	Knox27.3 County page
08	Scott27.6 County page
09	Peoria27.8 County page
10	Brown28.3 County page
11	Adams28.6 County page
12	McDonough28.7 County page
13	Schuyler28.9 County page
14	McLean31.9 County page
15	Wabash32.0 County page
16	Jersey32.4 County page
17	Lawrence32.5 County page
18	Kankakee33.0 County page
19	Mason33.4 County page
20	Morgan33.8 County page
21	Tazewell33.9 County page
22	Winnebago34.1 County page
23	Will34.6 County page
24	Pike34.7 County page
25	Champaign35.0 County page

How this ranking works

This page ranks Illinois counties by wildfire risk, sorted so the lowest places appear first. Click any county to see its housing, schools, crime, and demographics in detail.

For wildfire risk, a lower value is generally more favorable, so the top of the list is the lowest. Want to weigh wildfire risk against schools, taxes, commute, and more at once? Use the live map to build a custom match.

Data comes from public sources. Source attribution and the exact data vintage are shown above and on the full map of wildfire risk.

Frequently asked questions

Which county in Illinois has the lowest wildfire risk?: Cook has the lowest wildfire risk in Illinois, at 7.9.
What is the wildfire risk in Cook?: Cook is ranked #1 in Illinois for wildfire risk, at 7.9.
What are the top counties in Illinois for wildfire risk?: Cook (7.9), then DuPage (18.1), and Rock Island (23.3). The full top 25 is in the table on this page.
How is this wildfire risk ranking calculated?: Counties in Illinois are ranked by wildfire risk (FEMA National Risk Index, FEMA NRI v1.20), lowest first. Values describe the county, not an individual property. Source vintage is shown on the page.
How does Illinois compare to the rest of the US for wildfire risk?: This list is Illinois only. See the national ranking of the lowest counties for wildfire risk at hearthmap.app/best/lowest-wildfire-risk.