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Worst Air Quality in Illinois

Top 100 cities ranked by worst air quality

Best Illinois Cities

Composite rankings combining multiple weighted metrics — 4 topics from climate and air quality data.

Best Climate Cities
Warm temperatures, plenty of sunshine and clean air.
Cleanest Air Cities
Lowest pollution levels for healthy outdoor living.
Sunniest Cities
Most days of sunshine per year, with warm and dry climate.
Most Urban Cities
Densely populated city centers with the largest urban footprints.
Population & Density
Largest Cities Smallest Cities Most Dense Least Dense
Economy
Highest Income Lowest Income Lowest Unemployment Highest Unemployment Lowest Poverty Highest Poverty Highest Wages Cheapest Cost of Living
Housing
Highest Home Value Most Affordable Highest Rent Lowest Rent Highest Homeownership Newest Housing Lowest Property Tax
Demographics & Education
Most Educated Best Schools Most Graduate Degrees Youngest Cities Oldest Cities Most Veterans
Health & Safety
Safest Cities Highest Crime Healthiest Cities Lowest Smoking Best Doctor Access Best Dental Access
Climate & Air
Warmest Cities Coldest Cities Rainiest Cities Driest Cities Sunniest Cities Snowiest Cities Cleanest Air Worst Air Quality
Quality of Life
Shortest Commute Most Work From Home
Civic & Politics
Most Republican Most Democratic
Geography & Infrastructure
Highest Elevation Best Broadband Most EV Stations Most Libraries Most Restaurants
All Countries  ·  United States  ·  Illinois

Worst Air Quality — Illinois

1 Peoria AQI 44
2 Champaign AQI 44
3 Rock Island AQI 44
4 Chicago AQI 43
5 Aurora AQI 43
6 Joliet AQI 43
7 Naperville AQI 43
8 Rockford AQI 43
9 Elgin AQI 43
10 Springfield AQI 43
11 Waukegan AQI 43
12 Cicero AQI 43
13 Bloomington AQI 43
14 Schaumburg AQI 43
15 Evanston AQI 43
16 Arlington Heights AQI 43
17 Bolingbrook AQI 43
18 Decatur AQI 43
19 Palatine AQI 43
20 Skokie AQI 43
21 Des Plaines AQI 43
22 Orland Park AQI 43
23 Oak Lawn AQI 43
24 Berwyn AQI 43
25 Mount Prospect AQI 43
26 Tinley Park AQI 43
27 Wheaton AQI 43
28 Oak Park AQI 43
29 Normal AQI 43
30 Hoffman Estates AQI 43
31 Downers Grove AQI 43
32 Glenview AQI 43
33 Plainfield AQI 43
34 Elmhurst AQI 43
35 Lombard AQI 43
36 Buffalo Grove AQI 43
37 Moline AQI 43
38 Belleville AQI 43
39 Romeoville AQI 43
40 Bartlett AQI 43
41 DeKalb AQI 43
42 Crystal Lake AQI 43
43 Carol Stream AQI 43
44 Park Ridge AQI 43
45 Quincy AQI 43
46 Streamwood AQI 43
47 Wheeling AQI 43
48 Urbana AQI 43
49 Carpentersville AQI 43
50 Hanover Park AQI 43
51 Addison AQI 43
52 Oswego AQI 43
53 Calumet City AQI 43
54 Northbrook AQI 43
55 Woodridge AQI 43
56 Glendale Heights AQI 43
57 St. Charles AQI 43
58 O'Fallon AQI 43
59 Elk Grove Village AQI 43
60 Pekin AQI 43
61 Mundelein AQI 43
62 North Chicago AQI 43
63 Gurnee AQI 43
64 Niles AQI 43
65 Highland Park AQI 43
66 Algonquin AQI 43
67 Galesburg AQI 43
68 Lake in the Hills AQI 43
69 Burbank AQI 43
70 Danville AQI 43
71 Lansing AQI 43
72 Glen Ellyn AQI 43
73 Huntley AQI 43
74 McHenry AQI 43
75 Wilmette AQI 43
76 New Lenox AQI 43
77 Round Lake Beach AQI 43
78 Chicago Heights AQI 43
79 Oak Forest AQI 43
80 Vernon Hills AQI 43
81 Batavia AQI 43
82 Granite City AQI 43
83 Edwardsville AQI 43
84 Woodstock AQI 43
85 Lockport AQI 43
86 West Chicago AQI 43
87 Alton AQI 43
88 Morton Grove AQI 43
89 Homer Glen AQI 43
90 Melrose Park AQI 43
91 Belvidere AQI 43
92 Zion AQI 43
93 Kankakee AQI 43
94 Westmont AQI 43
95 Collinsville AQI 43
96 South Elgin AQI 43
97 Elmwood Park AQI 43
98 Rolling Meadows AQI 43
99 Freeport AQI 43
100 Blue Island AQI 43

Explore the top 100 cities ranked by worst air quality in Illinois.

City rankings help residents, researchers, and policymakers understand how communities compare across important quality-of-life measures.

Data is sourced from the U.S. Census Bureau, FBI Crime Statistics, and NOAA climate records.

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