Get a monitor and contributor to air quality data in your city.
Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
Air quality in Wisconsin
Air quality index (AQI) and PM2.5 air pollution in Wisconsin
LIVE AQI CITY RANKING
Real-time Wisconsin
Most polluted city ranking
| # | city | US AQI |
|---|---|---|
| 1 | De Forest | 54 |
| 2 | Shorewood | 30 |
| 3 | Bayside | 28 |
| 4 | Shell Lake | 28 |
| 5 | Belgium | 27 |
| 6 | Pleasant Prairie | 27 |
| 7 | Crandon | 26 |
| 8 | Manitowoc | 26 |
| 9 | Wausau | 26 |
| 10 | Eau Claire | 25 |
(local time)
SEE WORLD AQI RANKINGAIR QUALITY DATA CONTRIBUTORS
86 Contributors
See all
LIVE AQI CITY RANKING
Real-time Wisconsin
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Blair | 1 |
| 2 | Spring Valley | 1 |
| 3 | Chetek | 2 |
| 4 | Delavan | 2 |
| 5 | New London | 2 |
| 6 | Spring Green | 2 |
| 7 | Superior | 2 |
| 8 | Taylor | 2 |
| 9 | Waukesha | 2 |
| 10 | Chippewa Falls | 3 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
Good
Moderate
Unhealthy for sensitive groups
Unhealthy
Very unhealthy
Hazardous
News
The latest air quality news and resources.
Wisconsin air quality data attribution
86Contributors
- Wisconsin Department of Natural Resources (WDNR)
34 stations
Government Contributor
- MKE FreshAir Collective
7 stations
- Love My Air Wisconsin
1 station
- MKE FreshAir Collective
10 stations
3 Non-profit organization Contributors
- School District of Beloit Turner
1 station
Educational Contributor
- APOAK
1 station
Corporate Contributor
- IQAir Community Member
1 station
- Breja Gunnison Fink
1 station
- BrianSeehafer
1 station
- astralbodies
1 station
- anonymous
1 station
5 Individual Contributors
75 Anonymous contributors75 stations
75 Anonymous Contributors
4 Data sources
Which is the most polluted city in Wisconsin?
- De Forest 54
- Bristol 38
- Camp Lake 38
- Genoa City 38
- Kenosha 38
- Salem 38
- Silver Lake 38
- Twin Lakes 38
- Cuba City 37
- Hazel Green 37
- Monroe 37
- Paddock Lake 37
- Pell Lake 37
- Powers Lake 37
- Sharon 37
- Shullsburg 37
- Albany 36
- Brodhead 36
- Clinton 36
- Darien 36
- Decatur 36
- Delavan Lake 36
- Fontana 36
- Orfordville 36
- Somers 36
- Walworth 36
- Williams Bay 36
- Bohners Lake 35
- Como 35
- Darlington 35
- Dickeyville 35
- Janesville 35
- Monticello 35
- Platteville 35
- Reedsburg 35
- Richland Center 35
- Sturtevant 35
- Barneveld 34
- Belleville 34
- Black Earth 34
- Brooklyn 34
- Dodgeville 34
- Eagle Lake 34
- Evansville 34
- Fitchburg 34
- Lancaster 34
- Mazomanie 34
- Mineral Point 34
- Muscoda 34
- New Glarus 34
- Oregon 34
- Prairie du Sac 34
- Racine 34
- Roxbury 34
- Rutland 34
- Sauk City 34
- Union Grove 34
- Verona 34
- West Baraboo 34
- Browns Lake 33
- Burlington 33
- Dane 33
- Edgerton 33
- Fennimore 33
- Franksville 33
- Hillsboro 33
- Lake Delton 33
- Lake Wisconsin 33
- Lodi 33
- McFarland 33
- Middleton 33
- Monona 33
- Richmond 33
- Stoughton 33
- Waunakee 33
- Boscobel 32
- Cottage Grove 32
- East Troy 32
- Elkhorn 32
- Milton 32
- Pardeeville 32
- Portage 32
- Poynette 32
- Rio 32
- Rochester 32
- Sun Prairie 32
- Waterford 32
- Wind Point 32
- Windsor 32
- Wisconsin Dells 32
- Caledonia 31
- Cambridge 31
- Columbus 31
- Elroy 31
- Fall River 31
- Lake Koshkonong 31
- Lake Ripley 31
- Marshall 31
- Potter Lake 31
- Prairie du Chien 31
- Tichigan 31
- Whitewater 31
- Wind Lake 31
- Aztalan 30
- Beaver Dam 30
- Big Bend 30
- Concord 30
- Eagle 30
- Fort Atkinson 30
- Ixonia 30
- Jefferson 30
- Johnson Creek 30
- Juneau 30
- Lake Mills 30
- Mauston 30
- Milford 30
- Palmyra 30
- Randolph 30
- Shorewood 30
- Waterloo 30
- Watertown 30
- Dousman 29
- Franklin 29
- Hartland 29
- Hustisford 29
- Merton 29
- Muskego 29
- Nashotah 29
- North Prairie 29
- Oconomowoc 29
- Okauchee Lake 29
- Pewaukee 29
- Wales 29
- Addison 28
- Bayside 28
- Easton 28
- Fox Lake 28
- Greendale 28
- Hales Corners 28
- Hartford 28
- Mayville 28
- Medford 28
- Shell Lake 28
- Sussex 28
- Belgium 27
- Elm Grove 27
- Greenfield 27
- Kewaunee 27
- Lannon 27
- Pleasant Prairie 27
- Richfield 27
- Slinger 27
- South Milwaukee 27
- Theresa 27
- Butler 26
- Crandon 26
- Cudahy 26
- Germantown 26
- Grafton 26
- Jackson 26
- Manitowoc 26
- Menomonee Falls 26
- Saint Francis 26
- Sheboygan 26
- Wausau 26
- Wauwatosa 26
- West Milwaukee 26
- Brown Deer 25
- Eau Claire 25
- Glendale 25
- Horicon 25
- Manchester 25
- Markesan 25
- Mequon 25
- Montello 25
- Mosinee 25
- New Lisbon 25
- Waupun 25
- Wausaukee 25
- West Bend 25
- Westfield 25
- Whitefish Bay 25
- Alto 24
- Barton 24
- Cedarburg 24
- Fox Point 24
- Green Bay 24
- River Hills 24
- Thiensville 24
- Ashford 23
- Beloit 23
- Ellison Bay 23
- Fond du Lac 23
- Kewaskum 23
- Lomira 23
- Newburg 23
- Saukville 23
- Baraboo 22
- Oakfield 22
- Port Washington 22
- Campbellsport 21
- Fredonia 21
- Kohler 21
- Lamartine 21
- Milwaukee-waukesha-west Allis 21
- Princeton 21
- Random Lake 21
- Boulder Junction 20
- Cedar Grove 20
- Green Lake 19
- Oostburg 19
- Rosendale 19
- Westby 19
- Eldorado 18
- La Crosse 18
- Milwaukee 18
- North Fond du Lac 18
- Adams 17
- Cashton 17
- Ripon 17
- Sheboygan Falls 17
- Ashland 16
- Cleveland 16
- Friendship 16
- Howards Grove 16
- Lake Geneva 16
- Portland 16
- Potosi 16
- Saint Peter 16
- Amery 15
- Bangor 15
- Brookfield 15
- French Island 15
- Kiel 15
- North La Crosse 15
- Onalaska 15
- Tomah 15
- West Salem 15
- Brice Prairie 14
- Dakota 14
- Galesville 14
- Holmen 14
- Rothschild 14
- Trempealeau 14
- Shorewood Hills 13
- Alma 12
- Arcadia 12
- Berlin 12
- Brothertown 12
- Independence 12
- Rome 12
- Two Rivers 12
- Wautoma 12
- Whitehall 12
- Altoona 11
- Cato 11
- Chilton 11
- Niagara 11
- Oak Creek 11
- Redgranite 11
- Deerfield 9
- Mishicot 9
- Mount Morris 9
- Nekoosa 9
- Port Edwards 9
- Reedsville 9
- Baldwin 8
- Boyceville 8
- Colfax 8
- Durand 8
- Ellsworth 8
- Glenwood City 8
- Hammond 8
- Hilbert 8
- Lake Wazeecha 8
- Marshfield 8
- Menomonie 8
- Mondovi 8
- Neillsville 8
- New Richmond 8
- North Hudson 8
- Omro 8
- Plover 8
- Prescott 8
- River Falls 8
- Roberts 8
- Siren 8
- Somerset 8
- Stevens Point 8
- Strum 8
- Tainter Lake 8
- Whiting 8
- Winneconne 8
- Wisconsin Rapids 8
- Woodville 8
- Augusta 7
- Brillion 7
- Clear Lake 7
- Cooperstown 7
- Fall Creek 7
- Greenwood 7
- Lake Hallie 7
- Loyal 7
- Mount Pleasant 7
- Neenah 7
- Osseo 7
- Seymour 7
- Sherwood 7
- Sparta 7
- Spencer 7
- Stratford 7
- Viroqua 7
- Weston 7
- Amherst 6
- Bloomer 6
- Combined Locks 6
- Denmark 6
- Edgar 6
- Evergreen 6
- Harrison 6
- Kaukauna 6
- King 6
- Kronenwetter 6
- Lake Wissota 6
- Little Chute 6
- Maple Bluff 6
- Marathon 6
- New Holstein 6
- Rhinelander 6
- Waupaca 6
- Weyauwega 6
- Appleton 5
- Baileys Harbor 5
- Balsam Lake 5
- Barron 5
- Bevent 5
- Cadott 5
- Colby 5
- Cornell 5
- Glenmore 5
- Kimberly 5
- Mount Horeb 5
- New Auburn 5
- Osceola 5
- Rib Mountain 5
- Saint Croix Falls 5
- Schofield 5
- Stanley 5
- Sturgeon Bay 5
- Thorp 5
- Turtle Lake 5
- Washburn 5
- Wrightstown 5
- Abbotsford 4
- Algoma 4
- Allouez 4
- Antigo 4
- Ashwaubenon 4
- Athens 4
- Belle Plaine 4
- Bellevue 4
- Black Creek 4
- Bonduel 4
- Brussels 4
- Cameron 4
- Clintonville 4
- Cumberland 4
- De Pere 4
- Delafield 4
- Eagle River 4
- Florence 4
- Frederic 4
- Gillett 4
- Grantsburg 4
- Hobart 4
- Hortonville 4
- Howard 4
- Hurley 4
- Iola 4
- Keshena 4
- Lac du Flambeau 4
- Ladysmith 4
- Lake Nebagamon 4
- Legend Lake 4
- Little Round Lake 4
- Luck 4
- Luxemburg 4
- Madison 4
- Maine 4
- Manawa 4
- Marinette 4
- Marion 4
- Merrill 4
- Mukwonago 4
- Nashville 4
- New Berlin 4
- Oconto 4
- Oconto Falls 4
- Oneida 4
- Park Falls 4
- Peshtigo 4
- Phillips 4
- Pittsfield 4
- Pulaski 4
- Rice Lake 4
- Shawano 4
- Spooner 4
- Suamico 4
- Tomahawk 4
- Wittenberg 4
- Chippewa Falls 3
- Cross Plains 3
- Hayward 3
- Hudson 3
- Menasha 3
- Oshkosh 3
- Plymouth 3
- Chetek 2
- Delavan 2
- New London 2
- Spring Green 2
- Superior 2
- Taylor 2
- Waukesha 2
- Black River Falls 1
- Blair 1
- Spring Valley 1
AQI US, Metric