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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 |  Hudson | 47 |
| 2 | Spring Valley | 41 |
| 3 | Potosi | 37 |
| 4 | Lake Geneva | 36 |
| 5 | Menasha | 33 |
| 6 | New London | 32 |
| 7 | Plymouth | 30 |
| 8 | Oshkosh | 29 |
| 9 | Stevens Point | 29 |
| 10 | Altoona | 28 |
(local time)
SEE WORLD AQI RANKINGAIR QUALITY DATA CONTRIBUTORS
94 Contributors
See all
LIVE AQI CITY RANKING
Real-time Wisconsin
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Baileys Harbor | 10 |
| 2 | Sturgeon Bay | 10 |
| 3 | Superior | 10 |
| 4 | Black River Falls | 11 |
| 5 | Delavan | 12 |
| 6 | Mount Horeb | 12 |
| 7 | Shell Lake | 12 |
| 8 | Blair | 14 |
| 9 | Washburn | 14 |
| 10 | Chetek | 16 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
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Moderate
Unhealthy for sensitive groups
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News
The latest air quality news and resources.
Wisconsin air quality data attribution
94Contributors
- Wisconsin Department of Natural Resources (WDNR)
34 stations
Government Contributor
- MKE FreshAir Collective
8 stations
- Love My Air Wisconsin
5 stations
- MKE FreshAir Collective
10 stations
4 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
- astralbodies
1 station
- anonymous
1 station
4 Individual Contributors
83 Anonymous contributors83 stations
83 Anonymous Contributors
4 Data sources
Which is the most polluted city in Wisconsin?
- Hudson 47
- Prescott 46
- North Hudson 43
- River Falls 43
- Ellsworth 42
- Alma 41
- Roberts 41
- Spring Valley 41
- Baldwin 40
- Durand 40
- Hammond 40
- Mondovi 40
- Somerset 40
- Menomonie 39
- New Richmond 39
- Osceola 39
- Seymour 39
- Woodville 39
- Glenwood City 38
- Strum 38
- Tainter Lake 38
- Arcadia 37
- Boyceville 37
- Colfax 37
- Fall Creek 37
- Lake Hallie 37
- Potosi 37
- Saint Croix Falls 37
- Independence 36
- Lake Geneva 36
- Osseo 36
- Clear Lake 35
- Augusta 34
- Lake Wissota 34
- Prairie du Chien 34
- Trempealeau 34
- Whitehall 34
- Combined Locks 33
- Harrison 33
- Kimberly 33
- Little Chute 33
- Luck 33
- Menasha 33
- Neenah 33
- Bloomer 32
- Frederic 32
- Galesville 32
- Grantsburg 32
- Hortonville 32
- Kaukauna 32
- New London 32
- Sherwood 32
- Black Creek 31
- Brice Prairie 31
- Cadott 31
- Dickeyville 31
- French Island 31
- Hazel Green 31
- Hilbert 31
- Holmen 31
- La Crosse 31
- Lancaster 31
- North La Crosse 31
- Onalaska 31
- Winneconne 31
- Wrightstown 31
- Boscobel 30
- Brillion 30
- Brothertown 30
- Chilton 30
- Cuba City 30
- Fennimore 30
- New Auburn 30
- Omro 30
- Oneida 30
- Platteville 30
- Plymouth 30
- Shullsburg 30
- West Salem 30
- Allouez 29
- Ashwaubenon 29
- Bangor 29
- Cashton 29
- Darlington 29
- De Pere 29
- Glenmore 29
- Hobart 29
- Howard 29
- Mineral Point 29
- Oshkosh 29
- Pittsfield 29
- Portland 29
- Stevens Point 29
- Westby 29
- Weyauwega 29
- Altoona 28
- Amery 28
- Ashland 28
- Barron 28
- Belle Plaine 28
- Bellevue 28
- Bonduel 28
- Boulder Junction 28
- Clintonville 28
- Cumberland 28
- Denmark 28
- Dodgeville 28
- Manawa 28
- Monroe 28
- Mosinee 28
- Muscoda 28
- New Holstein 28
- North Fond du Lac 28
- Pulaski 28
- Reedsville 28
- Saint Peter 28
- Spring Green 28
- Albany 27
- Barneveld 27
- Belleville 27
- Berlin 27
- Brodhead 27
- Cameron 27
- Cato 27
- Cooperstown 27
- Decatur 27
- Eldorado 27
- Kiel 27
- King 27
- Lamartine 27
- Marion 27
- Monticello 27
- Mukwonago 27
- New Berlin 27
- New Glarus 27
- Orfordville 27
- Rice Lake 27
- Richland Center 27
- Shawano 27
- Shorewood Hills 27
- Stanley 27
- Suamico 27
- Viroqua 27
- Waupaca 27
- Wausau 27
- Amherst 26
- Belgium 26
- Black Earth 26
- Brooklyn 26
- Clinton 26
- Crandon 26
- Dane 26
- Evansville 26
- Fitchburg 26
- Fond du Lac 26
- Green Lake 26
- Hillsboro 26
- Iola 26
- Janesville 26
- Kewaunee 26
- Lake Wisconsin 26
- Lodi 26
- Luxemburg 26
- Manchester 26
- Middleton 26
- Mishicot 26
- Montello 26
- Mount Morris 26
- Neillsville 26
- Oakfield 26
- Oregon 26
- Pardeeville 26
- Portage 26
- Poynette 26
- Prairie du Sac 26
- Princeton 26
- Redgranite 26
- Rio 26
- Ripon 26
- Rosendale 26
- Roxbury 26
- Rutland 26
- Sauk City 26
- Sharon 26
- Spooner 26
- Tomah 26
- Verona 26
- Waunakee 26
- Wautoma 26
- West Baraboo 26
- Windsor 26
- Alto 25
- Ashford 25
- Bayside 25
- Cambridge 25
- Campbellsport 25
- Columbus 25
- Como 25
- Cornell 25
- Cottage Grove 25
- Dakota 25
- Darien 25
- Delavan Lake 25
- Edgerton 25
- Elroy 25
- Fall River 25
- Fontana 25
- Fort Atkinson 25
- Genoa City 25
- Gillett 25
- Greenwood 25
- Keshena 25
- Lake Delton 25
- Lake Koshkonong 25
- Lake Ripley 25
- Lake Wazeecha 25
- Legend Lake 25
- Lomira 25
- Loyal 25
- Manitowoc 25
- Markesan 25
- Marshall 25
- McFarland 25
- Milton 25
- Monona 25
- Nashville 25
- Nekoosa 25
- Niagara 25
- Oconto 25
- Oconto Falls 25
- Pell Lake 25
- Plover 25
- Port Edwards 25
- Powers Lake 25
- Racine 25
- Randolph 25
- Reedsburg 25
- Richmond 25
- Rome 25
- Sheboygan 25
- Sparta 25
- Stoughton 25
- Sun Prairie 25
- Thorp 25
- Twin Lakes 25
- Walworth 25
- Waterloo 25
- Waukesha 25
- Westfield 25
- Weston 25
- Whitewater 25
- Whiting 25
- Williams Bay 25
- Wisconsin Dells 25
- Wisconsin Rapids 25
- Adams 24
- Algoma 24
- Aztalan 24
- Balsam Lake 24
- Beaver Dam 24
- Bevent 24
- Bohners Lake 24
- Bristol 24
- Browns Lake 24
- Brussels 24
- Burlington 24
- Camp Lake 24
- Delafield 24
- Eagle 24
- East Troy 24
- Easton 24
- Elkhorn 24
- Fox Lake 24
- Friendship 24
- Howards Grove 24
- Jefferson 24
- Johnson Creek 24
- Juneau 24
- Kewaskum 24
- Lake Mills 24
- Marshfield 24
- Mauston 24
- Mayville 24
- Milford 24
- New Lisbon 24
- Paddock Lake 24
- Palmyra 24
- Pleasant Prairie 24
- Salem 24
- Silver Lake 24
- Spencer 24
- Theresa 24
- Turtle Lake 24
- Two Rivers 24
- Watertown 24
- Waupun 24
- Wittenberg 24
- Addison 23
- Antigo 23
- Barton 23
- Big Bend 23
- Cleveland 23
- Colby 23
- Concord 23
- Dousman 23
- Eagle Lake 23
- Eau Claire 23
- Edgar 23
- Ellison Bay 23
- Evergreen 23
- Fredonia 23
- Germantown 23
- Grafton 23
- Hartford 23
- Hartland 23
- Hustisford 23
- Ixonia 23
- Jackson 23
- Kenosha 23
- Kohler 23
- Kronenwetter 23
- Lannon 23
- Marathon 23
- Medford 23
- Menomonee Falls 23
- Merton 23
- Muskego 23
- Nashotah 23
- Newburg 23
- North Prairie 23
- Oconomowoc 23
- Okauchee Lake 23
- Pewaukee 23
- Potter Lake 23
- Random Lake 23
- Rib Mountain 23
- Richfield 23
- Rochester 23
- Rothschild 23
- Schofield 23
- Sheboygan Falls 23
- Siren 23
- Slinger 23
- Somers 23
- Stratford 23
- Sussex 23
- Tichigan 23
- Union Grove 23
- Wales 23
- Waterford 23
- Wausaukee 23
- West Bend 23
- Wind Lake 23
- Abbotsford 22
- Athens 22
- Beloit 22
- Brookfield 22
- Brown Deer 22
- Butler 22
- Caledonia 22
- Cedar Grove 22
- Cedarburg 22
- Cudahy 22
- Elm Grove 22
- Fox Point 22
- Franklin 22
- Franksville 22
- Glendale 22
- Green Bay 22
- Greendale 22
- Greenfield 22
- Hales Corners 22
- Lake Nebagamon 22
- Maine 22
- Mequon 22
- Merrill 22
- Milwaukee 22
- Milwaukee-waukesha-west Allis 22
- Oostburg 22
- Port Washington 22
- River Hills 22
- Saint Francis 22
- Saukville 22
- Shorewood 22
- South Milwaukee 22
- Sturtevant 22
- Thiensville 22
- Wauwatosa 22
- West Milwaukee 22
- Whitefish Bay 22
- Wind Point 22
- Appleton 21
- Baraboo 21
- Chippewa Falls 21
- De Forest 21
- Deerfield 21
- Florence 21
- Horicon 21
- Little Round Lake 21
- Madison 21
- Mazomanie 21
- Peshtigo 21
- Eagle River 20
- Ladysmith 20
- Mount Pleasant 20
- Marinette 19
- Tomahawk 19
- Cross Plains 18
- Hayward 18
- Hurley 18
- Oak Creek 18
- Maple Bluff 17
- Park Falls 17
- Phillips 17
- Rhinelander 17
- Taylor 17
- Chetek 16
- Lac du Flambeau 16
- Blair 14
- Washburn 14
- Delavan 12
- Mount Horeb 12
- Shell Lake 12
- Black River Falls 11
- Baileys Harbor 10
- Sturgeon Bay 10
- Superior 10
AQI US, Metric