SmogRank / World / United States / February 2026
Most polluted cities in United States, February 2026
665 cities in United States ranked by their average PM2.5 over the 28 days. Worst: Tulare at 23.8 µg/m³, #415 of 2,520 cities in the world. Cleanest: Casper at 1.2. A city needs measurements on 70% of the days to be ranked.
← Tulare 23.8
- 1Tularelow-cost sensorsCalifornia 23.8
- 2Delanolow-cost sensorsCalifornia 22.4
- 3RedfordMichigan 18.7
- 4YorkPennsylvania 18.1
- 5Camdenlow-cost sensorsNew Jersey 17.6
- 6BakersfieldCalifornia 17.0
- 7VisaliaCalifornia 16.8
- 8PortsmouthOhio 16.6
- 8LancasterPennsylvania 16.6
- 10Wheatonlow-cost sensorsIllinois 16.4
- 11FresnoCalifornia 16.3
- 12CalexicoCalifornia 15.6
- 13Abingtonlow-cost sensorsPennsylvania 15.5
- 14Ann Arborlow-cost sensorsMichigan 15.4
- 15Skokielow-cost sensorsIllinois 15.0
- 16Evergreen Parklow-cost sensorsIllinois 14.9
- 17ModestoCalifornia 14.7
- 18CarlislePennsylvania 14.6
- 19AlbanyNew York 14.5
- 19ReadingPennsylvania 14.5
- 21McAlesterOklahoma 14.4
- 21HarrisburgPennsylvania 14.4
- 23ToledoOhio 14.3
- 24ColumbusGeorgia 14.2
- 24OregonOhio 14.2
- 24HanfordCalifornia 14.2
- 27LaredoTexas 14.1
- 28WilmingtonDelaware 14.0
- 29PennsaukenNew Jersey 13.9
- 29Evanstonlow-cost sensorsIllinois 13.9
- 29DetroitMichigan 13.9
- 32AlbanyGeorgia 13.6
- 32MissionTexas 13.6
- 34WestervilleOhio 13.5
- 35MaconGeorgia 13.4
- 35LebanonPennsylvania 13.4
- 35CorcoranCalifornia 13.4
- 38NorwoodOhio 13.3
- 38PhiladelphiaPennsylvania 13.3
- 38Jurupa ValleyCalifornia 13.3
- 41BrownsvilleTexas 13.1
- 41El PasoTexas 13.1
- 43Wake Forestlow-cost sensorsNorth Carolina 13.0
- 43MiddletownOhio 13.0
- 43EdinburgTexas 13.0
- 46Fort WayneIndiana 12.9
- 46ClevelandOhio 12.9
- 46West MifflinPennsylvania 12.9
- 49BaltimoreMaryland 12.8
- 49ChesterPennsylvania 12.8
- 49DearbornMichigan 12.8
- 49Lincoln ParkMichigan 12.8
- 49PerrysburgOhio 12.8
- 54LawrencevilleGeorgia 12.7
- 54BrookfieldIllinois 12.7
- 54Franklin ParkIllinois 12.7
- 54WyomingMichigan 12.7
- 54MaderaCalifornia 12.7
- 59BethlehemPennsylvania 12.6
- 60SouthfieldMichigan 12.4
- 60NorristownPennsylvania 12.4
- 60TurlockCalifornia 12.4
- 63EssexMaryland 12.3
- 63HattiesburgMississippi 12.3
- 63BaytownTexas 12.3
- 63Port HuronMichigan 12.3
- 67JeffersonvilleIndiana 12.2
- 67WaterlooIowa 12.2
- 67EastpointeMichigan 12.2
- 67SteubenvilleOhio 12.2
- 67MercedCalifornia 12.2
- 72IndianapolisIndiana 12.1
- 72AshlandKentucky 12.1
- 74West MemphisArkansas 12.0
- 74LouisvilleKentucky 12.0
- 74MonroeLouisiana 12.0
- 74Hunt ValleyMaryland 12.0
- 74ConroeTexas 12.0
- 74Corpus ChristiTexas 12.0
- 80AugustaGeorgia 11.9
- 80DoltonIllinois 11.9
- 82CincinnatiOhio 11.8
- 82ColumbusOhio 11.8
- 82Elmwood ParkIllinois 11.8
- 82TaylorMichigan 11.8
- 82AllentownPennsylvania 11.8
- 87GainesvilleGeorgia 11.7
- 87HoustonTexas 11.7
- 87Des PlainesIllinois 11.7
- 87Grand RapidsMichigan 11.7
- 87KalamazooMichigan 11.7
- 87Grants PassOregon 11.7
- 93DaytonOhio 11.6
- 93SpartanburgSouth Carolina 11.6
- 93Bay CityMichigan 11.6
- 93NogalesArizona 11.6
- 97NewarkDelaware 11.5
- 97RutlandVermont 11.5
- 99YpsilantiMichigan 11.4
- 99WhittierCalifornia 11.4
- 101DecaturAlabama 11.3
- 101SpringdaleArkansas 11.3
- 101ElginIllinois 11.3
- 101CantonOhio 11.3
- 105ElkhartIndiana 11.2
- 105AkronOhio 11.2
- 105DublinOhio 11.2
- 105MedinaOhio 11.2
- 105State CollegePennsylvania 11.2
- 105Oconomowoclow-cost sensorsWisconsin 11.2
- 105ComptonCalifornia 11.2
- 105Florinlow-cost sensorsCalifornia 11.2
- 105SocorroTexas 11.2
- 114Valley StationKentucky 11.1
- 114NashvilleTennessee 11.1
- 114BridgeviewIllinois 11.1
- 114ChicagoIllinois 11.1
- 118BearDelaware 11.0
- 118BloomingtonIndiana 11.0
- 118EvansvilleIndiana 11.0
- 118JacksonMississippi 11.0
- 118South MilwaukeeWisconsin 11.0
- 118ClovisCalifornia 11.0
- 118RiversideCalifornia 11.0
- 125TallahasseeFlorida 10.9
- 125Warner RobinsGeorgia 10.9
- 125ChattanoogaTennessee 10.9
- 125PasadenaTexas 10.9
- 125San AntonioTexas 10.9
- 125SpringfieldVirginia 10.9
- 125HartfordConnecticut 10.9
- 125New York CityNew York 10.9
- 125WarrenOhio 10.9
- 125JohnstownPennsylvania 10.9
- 125PortervilleCalifornia 10.9
- 136BuffaloNew York 10.8
- 136StocktonCalifornia 10.8
- 138HuntsvilleAlabama 10.7
- 138DoverDelaware 10.7
- 138DerbyKansas 10.7
- 138Live OakTexas 10.7
- 138MuscatineIowa 10.7
- 138Calumet CityIllinois 10.7
- 138RochesterNew York 10.7
- 138PittsburghPennsylvania 10.7
- 138ScrantonPennsylvania 10.7
- 147ShreveportLouisiana 10.6
- 147PortlandMaine 10.6
- 147Shaker HeightsOhio 10.6
- 147WilkinsburgPennsylvania 10.6
- 147Eagle PassTexas 10.6
- 147NampaIdaho 10.6
- 153BessemerAlabama 10.5
- 153Little RockArkansas 10.5
- 153WashingtonDistrict of Columbia 10.5
- 153Granite CityIllinois 10.5
- 153MuncieIndiana 10.5
- 153EriePennsylvania 10.5
- 153MilwaukeeWisconsin 10.5
- 153WaukeshaWisconsin 10.5
- 153Hawthornelow-cost sensorsCalifornia 10.5
- 162WichitaKansas 10.4
- 162GreenvilleSouth Carolina 10.4
- 162PeoriaIllinois 10.4
- 162RockfordIllinois 10.4
- 162LansingMichigan 10.4
- 162LindenNew Jersey 10.4
- 162PainesvilleOhio 10.4
- 169Saint MatthewsKentucky 10.3
- 169ElktonMaryland 10.3
- 169BartlettTennessee 10.3
- 169Cleveland HeightsOhio 10.3
- 169HollandMichigan 10.3
- 169PaysonArizona 10.3
- 175OwensboroKentucky 10.2
- 175SulphurLouisiana 10.2
- 175East ChicagoIndiana 10.2
- 175HolbrookNew York 10.2
- 175YoungstownOhio 10.2
- 180AthensGeorgia 10.1
- 180EdgewoodMaryland 10.1
- 180East RidgeTennessee 10.1
- 180TexarkanaTexas 10.1
- 180HuntingtonWest Virginia 10.1
- 180AnaheimCalifornia 10.1
- 186HagerstownMaryland 10.0
- 186HernandoMississippi 10.0
- 186South VinelandNew Jersey 10.0
- 186Saint AndrewsSouth Carolina 10.0
- 186AndersonIndiana 10.0
- 186AltoonaPennsylvania 10.0
- 186Huntington Beachlow-cost sensorsCalifornia 10.0
- 193HueytownAlabama 9.9
- 193East Saint LouisIllinois 9.9
- 193Upper AltonIllinois 9.9
- 193JeffersontownKentucky 9.9
- 193St. LouisMissouri 9.9
- 193GulfportMississippi 9.9
- 193Toms RiverNew Jersey 9.9
- 193DanburyConnecticut 9.9
- 193WaterburyConnecticut 9.9
- 193AuroraIllinois 9.9
- 193HammondIndiana 9.9
- 193EwingNew Jersey 9.9
- 193McKeesportPennsylvania 9.9
- 193Green BayWisconsin 9.9
- 207New AlbanyIndiana 9.8
- 207Missouri CityTexas 9.8
- 207Michigan CityIndiana 9.8
- 207South BendIndiana 9.8
- 207Jersey CityNew Jersey 9.8
- 212JenksOklahoma 9.7
- 212HendersonvilleTennessee 9.7
- 212HarrisonburgVirginia 9.7
- 212MantecaCalifornia 9.7
- 216PaducahKentucky 9.6
- 216JasperIndiana 9.6
- 216LemayMissouri 9.6
- 216SewellNew Jersey 9.6
- 216KnoxvilleTennessee 9.6
- 216FairbanksAlaska 9.6
- 216Candler-McAfeeGeorgia 9.6
- 223MontgomeryAlabama 9.5
- 223SpringfieldOhio 9.5
- 223FlorenceSouth Carolina 9.5
- 223AshburnVirginia 9.5
- 223Iowa CityIowa 9.5
- 223MolineIllinois 9.5
- 229ElizabethtownKentucky 9.4
- 229Baton RougeLouisiana 9.4
- 229Ponca CityOklahoma 9.4
- 229AustinTexas 9.4
- 229Rose HillVirginia 9.4
- 229ClintonIowa 9.4
- 229Fort LeeNew Jersey 9.4
- 229HermitagePennsylvania 9.4
- 229Great FallsMontana 9.4
- 238BirminghamAlabama 9.3
- 238TrussvilleAlabama 9.3
- 238Lexington-FayetteKentucky 9.3
- 238Columbialow-cost sensorsMissouri 9.3
- 238ColumbiaTennessee 9.3
- 238PhoenixArizona 9.3
- 238Los AngelesCalifornia 9.3
- 238MedfordOregon 9.3
- 238Arden-ArcadeCalifornia 9.3
- 238RandolphNew Jersey 9.3
- 248MasonOhio 9.2
- 248MooreOklahoma 9.2
- 248JolietIllinois 9.2
- 248WoodlandCalifornia 9.2
- 252KennerLouisiana 9.1
- 252South LaurelMaryland 9.1
- 252Fort WorthTexas 9.1
- 252CharlestonWest Virginia 9.1
- 252DavenportIowa 9.1
- 252Oak LawnIllinois 9.1
- 252PatersonNew Jersey 9.1
- 252WeirtonWest Virginia 9.1
- 252Inglewoodlow-cost sensorsCalifornia 9.1
- 252Long BeachCalifornia 9.1
- 262ValdostaGeorgia 9.0
- 262SpringfieldMissouri 9.0
- 262PascagoulaMississippi 9.0
- 262DurhamNorth Carolina 9.0
- 262LebanonOhio 9.0
- 262White OakOhio 9.0
- 262GreenfieldMassachusetts 9.0
- 262SpringfieldMassachusetts 9.0
- 262ElizabethNew Jersey 9.0
- 262Carsonlow-cost sensorsCalifornia 9.0
- 262YakimaWashington 9.0
- 273SavannahGeorgia 8.9
- 273CharlotteNorth Carolina 8.9
- 273RaleighNorth Carolina 8.9
- 273Oklahoma CityOklahoma 8.9
- 273Port ArthurTexas 8.9
- 273ChesapeakeVirginia 8.9
- 273Fort DodgeIowa 8.9
- 273SyracuseNew York 8.9
- 273BadgerAlaska 8.9
- 282GadsdenAlabama 8.8
- 282PrichardAlabama 8.8
- 282Ferry PassFlorida 8.8
- 282FayettevilleNorth Carolina 8.8
- 282Mission BendTexas 8.8
- 282NapervilleIllinois 8.8
- 282BurnsvilleMinnesota 8.8
- 282KeeneNew Hampshire 8.8
- 282AppletonWisconsin 8.8
- 282RosevilleCalifornia 8.8
- 282SacramentoCalifornia 8.8
- 293NicholasvilleKentucky 8.7
- 293ScaggsvilleMaryland 8.7
- 293North CharlestonSouth Carolina 8.7
- 293ClarksvilleTennessee 8.7
- 293BrookingsSouth Dakota 8.7
- 293MadisonWisconsin 8.7
- 299Daytona BeachFlorida 8.6
- 299Kansas CityKansas 8.6
- 299New OrleansLouisiana 8.6
- 299RockvilleMaryland 8.6
- 299ClemmonsNorth Carolina 8.6
- 299MorrisvilleNorth Carolina 8.6
- 299Winston-SalemNorth Carolina 8.6
- 299CaryIllinois 8.6
- 299ZionIllinois 8.6
- 299LaconiaNew Hampshire 8.6
- 299FontanaCalifornia 8.6
- 299San DiegoCalifornia 8.6
- 311Fort ThomasKentucky 8.5
- 311Cedar RapidsIowa 8.5
- 311NorthbrookIllinois 8.5
- 311BangorMaine 8.5
- 311PawtucketRhode Island 8.5
- 311MidwayFlorida 8.5
- 317Fort SmithArkansas 8.4
- 317Ponte Vedra BeachFlorida 8.4
- 317AtlantaGeorgia 8.4
- 317TopekaKansas 8.4
- 317JacksonTennessee 8.4
- 317HopewellVirginia 8.4
- 317RichmondVirginia 8.4
- 317MinneapolisMinnesota 8.4
- 317LincolnCalifornia 8.4
- 317OaklandCalifornia 8.4
- 317Torrancelow-cost sensorsCalifornia 8.4
- 317Yuba CityCalifornia 8.4
- 329JacksonvilleFlorida 8.3
- 329OcalaFlorida 8.3
- 329Saint JosephMissouri 8.3
- 329ClaytonNorth Carolina 8.3
- 329College StationTexas 8.3
- 329BayonneNew Jersey 8.3
- 329TrentonNew Jersey 8.3
- 329Upper Saint ClairPennsylvania 8.3
- 329Eau ClaireWisconsin 8.3
- 329BridgeportConnecticut 8.3
- 329ChicoCalifornia 8.3
- 329LewistonIdaho 8.3
- 341West PensacolaFlorida 8.2
- 341OlatheKansas 8.2
- 341HickoryNorth Carolina 8.2
- 341CharlottesvilleVirginia 8.2
- 341New HavenConnecticut 8.2
- 341San JoseCalifornia 8.2
- 341AltamontOregon 8.2
- 348FairhopeAlabama 8.1
- 348University CityMissouri 8.1
- 348EdmondOklahoma 8.1
- 348East HamptonVirginia 8.1
- 348SuperiorWisconsin 8.1
- 348Las VegasNevada 8.1
- 348RenoNevada 8.1
- 348MillcreekUtah 8.1
- 356La PorteTexas 8.0
- 356FraminghamMassachusetts 8.0
- 356Saint PaulMinnesota 8.0
- 359SpringfieldIllinois 7.9
- 359ChalmetteLouisiana 7.9
- 359GreenvilleNorth Carolina 7.9
- 359MaryvilleTennessee 7.9
- 359BloomingtonIllinois 7.9
- 359Newtonlow-cost sensorsMassachusetts 7.9
- 359GahannaOhio 7.9
- 366Bonita SpringsFlorida 7.8
- 366Oak RidgeFlorida 7.8
- 366St. PetersburgFlorida 7.8
- 366DecaturIllinois 7.8
- 366ChampaignIllinois 7.8
- 366RochesterMinnesota 7.8
- 366UticaNew York 7.8
- 366Middletonlow-cost sensorsWisconsin 7.8
- 366RichmondCalifornia 7.8
- 366Oxon Hill-GlassmanorMaryland 7.8
- 376Kendale LakesFlorida 7.7
- 376TampaFlorida 7.7
- 376Short PumpVirginia 7.7
- 376HaverhillMassachusetts 7.7
- 376ProvidenceRhode Island 7.7
- 376Chula VistaCalifornia 7.7
- 376San FranciscoCalifornia 7.7
- 383Fort LauderdaleFlorida 7.6
- 383MiamiFlorida 7.6
- 383ArnoldMissouri 7.6
- 383GreensboroNorth Carolina 7.6
- 383DyersburgTennessee 7.6
- 383DentonTexas 7.6
- 383LimaOhio 7.6
- 383Weirton HeightsWest Virginia 7.6
- 383Mission ViejoCalifornia 7.6
- 392VeniceFlorida 7.5
- 392LawtonOklahoma 7.5
- 392CorsicanaTexas 7.5
- 392BostonMassachusetts 7.5
- 392ShakopeeMinnesota 7.5
- 392HillsboroOregon 7.5
- 398BrunswickGeorgia 7.4
- 398Kansas CityMissouri 7.4
- 398AshevilleNorth Carolina 7.4
- 398San MarcosTexas 7.4
- 398NewburghNew York 7.4
- 398UkiahCalifornia 7.4
- 404CookevilleTennessee 7.3
- 404GalvestonTexas 7.3
- 404Lexingtonlow-cost sensorsMassachusetts 7.3
- 404LewistonMaine 7.3
- 404BlaineMinnesota 7.3
- 404BurbankCalifornia 7.3
- 404OceansideCalifornia 7.3
- 404ReddingCalifornia 7.3
- 412AnkenyIowa 7.2
- 412Apple ValleyMinnesota 7.2
- 412GlendaleArizona 7.2
- 412SunnysideWashington 7.2
- 416OrlandoFlorida 7.1
- 416KingsportTennessee 7.1
- 416RoanokeVirginia 7.1
- 416New LondonConnecticut 7.1
- 416PittsfieldMassachusetts 7.1
- 416WorcesterMassachusetts 7.1
- 416San LeandroCalifornia 7.1
- 416San Luis ObispoCalifornia 7.1
- 416ButteMontana 7.1
- 425Fruit CoveFlorida 7.0
- 425Roanoke RapidsNorth Carolina 7.0
- 425Atlantic CityNew Jersey 7.0
- 425SaginawTexas 7.0
- 425LynnMassachusetts 7.0
- 425AugustaMaine 7.0
- 425El CajonCalifornia 7.0
- 425Lomitalow-cost sensorsCalifornia 7.0
- 425Santa Monicalow-cost sensorsCalifornia 7.0
- 434ValricoFlorida 6.9
- 434ConwaySouth Carolina 6.9
- 434SalemVirginia 6.9
- 434BrocktonMassachusetts 6.9
- 434Fall RiverMassachusetts 6.9
- 434LowellMassachusetts 6.9
- 434North ChicopeeMassachusetts 6.9
- 434MankatoMinnesota 6.9
- 434White PlainsNew York 6.9
- 434VallejoCalifornia 6.9
- 434Rio RanchoNew Mexico 6.9
- 445RaymoreMissouri 6.8
- 445Sunland ParkNew Mexico 6.8
- 445RoseburgOregon 6.8
- 448GainesvilleFlorida 6.7
- 448Des MoinesIowa 6.7
- 448Saint CloudMinnesota 6.7
- 448GaltCalifornia 6.7
- 448LivermoreCalifornia 6.7
- 448West JordanUtah 6.7
- 448Port AngelesWashington 6.7
- 448TacomaWashington 6.7
- 456SarasotaFlorida 6.6
- 456LeawoodKansas 6.6
- 456PflugervilleTexas 6.6
- 456TaylorTexas 6.6
- 456QuincyMassachusetts 6.6
- 456JenisonMichigan 6.6
- 456Saint MichaelMinnesota 6.6
- 456New CityNew York 6.6
- 456TempeArizona 6.6
- 456Santa BarbaraCalifornia 6.6
- 466Palm CityFlorida 6.5
- 466Safety HarborFlorida 6.5
- 466WellingtonFlorida 6.5
- 466BeltonTexas 6.5
- 466MilfordMassachusetts 6.5
- 466Palo Altolow-cost sensorsCalifornia 6.5
- 466WenatcheeWashington 6.5
- 473Belle GladeFlorida 6.4
- 473Fort MyersFlorida 6.4
- 473Pompano BeachFlorida 6.4
- 473PleasantvilleNew Jersey 6.4
- 473DuluthMinnesota 6.4
- 473BerkeleyCalifornia 6.4
- 473PowayCalifornia 6.4
- 473South San Franciscolow-cost sensorsCalifornia 6.4
- 473OdessaTexas 6.4
- 473West Valley CityUtah 6.4
- 473Columbia CityWashington 6.4
- 484Lake MaryFlorida 6.3
- 484LibertyMissouri 6.3
- 484TucsonArizona 6.3
- 484DavisCalifornia 6.3
- 484HelenaMontana 6.3
- 484Four CornersFlorida 6.3
- 484Picnic Point-North LynnwoodWashington 6.3
- 491MesaArizona 6.2
- 491YumaArizona 6.2
- 491Grand JunctionColorado 6.2
- 491AlbuquerqueNew Mexico 6.2
- 491HermistonOregon 6.2
- 491Salt Lake CityUtah 6.2
- 491AuburnWashington 6.2
- 498DavieFlorida 6.1
- 498Casa GrandeArizona 6.1
- 498BillingsMontana 6.1
- 498RentonWashington 6.1
- 502Deerfield BeachFlorida 6.0
- 502East LakeFlorida 6.0
- 502McDonoughGeorgia 6.0
- 502PleasantonCalifornia 6.0
- 502TracyCalifornia 6.0
- 502WoodburnOregon 6.0
- 502EllensburgWashington 6.0
- 502VancouverWashington 6.0
- 510Delray BeachFlorida 5.9
- 510Cedar ParkTexas 5.9
- 510West FargoNorth Dakota 5.9
- 510LincolnNebraska 5.9
- 510AberdeenSouth Dakota 5.9
- 510GreeleyColorado 5.9
- 516PortsmouthNew Hampshire 5.8
- 516NipomoCalifornia 5.8
- 516Santa ClaritaCalifornia 5.8
- 516HobbsNew Mexico 5.8
- 516BozemanMontana 5.8
- 516AlbanyOregon 5.8
- 516EugeneOregon 5.8
- 516PendletonOregon 5.8
- 516SeattleWashington 5.8
- 525WestonFlorida 5.7
- 525DerryNew Hampshire 5.7
- 525Agouralow-cost sensorsCalifornia 5.7
- 525AtascaderoCalifornia 5.7
- 525BrawleyCalifornia 5.7
- 525ThorntonColorado 5.7
- 525OremUtah 5.7
- 532Palm BayFlorida 5.6
- 532El CentroCalifornia 5.6
- 532Redwood CityCalifornia 5.6
- 532Spanish SpringsNevada 5.6
- 532The DallesOregon 5.6
- 537La VistaNebraska 5.5
- 537Lake ElsinoreCalifornia 5.5
- 537Santa RosaCalifornia 5.5
- 537TigardOregon 5.5
- 537BountifulUtah 5.5
- 537Moses LakeWashington 5.5
- 537KahuluiHawaii 5.5
- 537HonoluluHawaii 5.5
- 537Tri-CitiesWashington 5.5
- 546Coconut CreekFlorida 5.4
- 546OmahaNebraska 5.4
- 546ConcordCalifornia 5.4
- 546GlendoraCalifornia 5.4
- 546Santa CruzCalifornia 5.4
- 546Carson CityNevada 5.4
- 546SalemOregon 5.4
- 546Rapid CitySouth Dakota 5.4
- 554BellevueNebraska 5.3
- 554IndioCalifornia 5.3
- 554Simi ValleyCalifornia 5.3
- 554VacavilleCalifornia 5.3
- 554Fort CollinsColorado 5.3
- 554Oregon CityOregon 5.3
- 560GilroyCalifornia 5.2
- 560Coeur d'AleneIdaho 5.2
- 560MagnaUtah 5.2
- 560SpokaneWashington 5.2
- 564FolsomCalifornia 5.1
- 564Apache JunctionArizona 5.1
- 564LongmontColorado 5.1
- 564BendOregon 5.1
- 564LaceyWashington 5.1
- 564La Crescenta-Montroselow-cost sensorsCalifornia 5.1
- 570CoventryRhode Island 5.0
- 570Casas AdobesArizona 5.0
- 570MilwaukieOregon 5.0
- 570ParklandWashington 5.0
- 570Spokane ValleyWashington 5.0
- 575Cedar CityUtah 4.8
- 575Brigham CityUtah 4.8
- 575North OgdenUtah 4.8
- 575BellinghamWashington 4.8
- 579MaranaArizona 4.7
- 579PocatelloIdaho 4.7
- 579HighlandUtah 4.7
- 579Walla WallaWashington 4.7
- 579SheridanWyoming 4.7
- 584Arroyo GrandeCalifornia 4.6
- 584ParadiseCalifornia 4.6
- 584Thousand OaksCalifornia 4.6
- 584Dodge CityKansas 4.6
- 584Coos BayOregon 4.6
- 589GreshamOregon 4.5
- 589ShorelineWashington 4.5
- 589HiloHawaii 4.5
- 592OxnardCalifornia 4.4
- 592SalinasCalifornia 4.4
- 592San RafaelCalifornia 4.4
- 592Windsorlow-cost sensorsCalifornia 4.4
- 592DenverColorado 4.4
- 592Lakewoodlow-cost sensorsColorado 4.4
- 592Spring ValleyNevada 4.4
- 592BoiseIdaho 4.4
- 592BeavertonOregon 4.4
- 592PortlandOregon 4.4
- 592CentraliaWashington 4.4
- 592LongviewWashington 4.4
- 604Seasidelow-cost sensorsCalifornia 4.3
- 604HendersonNevada 4.3
- 604AshlandOregon 4.3
- 604DallasOregon 4.3
- 604TooeleUtah 4.3
- 604KentWashington 4.3
- 610OrcuttCalifornia 4.2
- 610Pasadenalow-cost sensorsCalifornia 4.2
- 612Grand IslandNebraska 4.1
- 612BanningCalifornia 4.1
- 612CanbyOregon 4.1
- 612Spanish ForkUtah 4.1
- 612KīheiHawaii 4.1
- 617LancasterCalifornia 4.0
- 617MartinezCalifornia 4.0
- 617RedmondOregon 4.0
- 620WindsorColorado 3.9
- 620MoscowIdaho 3.9
- 620McMinnvilleOregon 3.9
- 620BremertonWashington 3.9
- 620Salmon CreekWashington 3.9
- 625MarquetteMichigan 3.8
- 625BurienWashington 3.8
- 627Colorado SpringsColorado 3.7
- 627PuebloColorado 3.7
- 627Idaho FallsIdaho 3.7
- 630LafayetteLouisiana 3.6
- 630FillmoreCalifornia 3.6
- 630Ken CarylColorado 3.6
- 630EnterpriseNevada 3.6
- 634HollisterCalifornia 3.5
- 634TruckeeCalifornia 3.5
- 634LittletonColorado 3.5
- 637Las CrucesNew Mexico 3.4
- 637Twin FallsIdaho 3.4
- 637MissoulaMontana 3.4
- 640Arvadalow-cost sensorsColorado 3.3
- 640HurricaneUtah 3.3
- 640Summerlin SouthNevada 3.3
- 643CorvallisOregon 3.2
- 643HerrimanUtah 3.2
- 643AberdeenWashington 3.2
- 646RidgecrestCalifornia 3.0
- 647MesquiteNevada 2.9
- 647Forest GroveOregon 2.9
- 647Rock SpringsWyoming 2.9
- 650BoulderColorado 2.8
- 650GilletteWyoming 2.8
- 652Boulder CityNevada 2.7
- 653Green ValleyArizona 2.6
- 653Cañon CityColorado 2.6
- 655BellevueWashington 2.3
- 655PullmanWashington 2.3
- 655LaramieWyoming 2.3
- 658LompocCalifornia 2.0
- 659Goletalow-cost sensorsCalifornia 1.9
- 659Oak HarborWashington 1.9
- 659CheyenneWyoming 1.9
- 662Bothelllow-cost sensorsWashington 1.6
- 663AnacortesWashington 1.5
- 664Union Hill-Novelty Hilllow-cost sensorsWashington 1.4
- 665CasperWyoming 1.2
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+
PM2.5 in µg/m³, coloured by the US EPA's PM2.5 categories. Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
All cities in the world, February 2026 · United States now
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SmogRank, most polluted cities in United States, PM2.5, February 2026, smogrank.com/us/history/2026-02 (accessed 2 Oct 2026).
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