SmogRank / Countries / United States / February 2024
Most polluted cities in United States, February 2024
606 cities in United States ranked by their average PM2.5 over the 29 days. Worst: Badger at 24.0 µg/m³, #77 of 2,003 cities in the world. Cleanest: Marysville at 1.0. A city needs measurements on 70% of the days to be ranked.
- 1BadgerAlaska 24.0
- 2ColumbusGeorgia 16.1
- 3AlbanyGeorgia 15.9
- 4MaconGeorgia 15.0
- 5BirminghamAlabama 14.3
- 5East RidgeTennessee 14.3
- 7FairbanksAlaska 14.0
- 8DearbornMichigan 13.9
- 9DurhamNorth Carolina 13.0
- 10HueytownAlabama 12.6
- 10MissionTexas 12.6
- 12RedfordMichigan 12.4
- 13Granite CityIllinois 12.3
- 14SulphurLouisiana 12.2
- 14KalamazooMichigan 12.2
- 16Phenix CityAlabama 12.1
- 17East Saint LouisIllinois 12.0
- 17BensalemPennsylvania 12.0
- 19AugustaGeorgia 11.9
- 19Warner RobinsGeorgia 11.9
- 19Terre HauteIndiana 11.9
- 22ValdostaGeorgia 11.8
- 22Grand RapidsMichigan 11.8
- 24GainesvilleGeorgia 11.7
- 24East ChicagoIndiana 11.7
- 26IndianapolisIndiana 11.6
- 26JenisonMichigan 11.6
- 26ToledoOhio 11.6
- 29OcalaFlorida 11.4
- 29ColumbusOhio 11.4
- 31KennesawGeorgia 11.3
- 31SpartanburgSouth Carolina 11.3
- 31DetroitMichigan 11.3
- 34ClevelandOhio 11.2
- 35MiddletownOhio 11.1
- 35BrookfieldIllinois 11.1
- 35Oak LawnIllinois 11.1
- 35ElkhartIndiana 11.1
- 35ElizabethNew Jersey 11.1
- 35LancasterPennsylvania 11.1
- 41StocktonCalifornia 11.0
- 42TallahasseeFlorida 10.9
- 42HollandMichigan 10.9
- 44TrussvilleAlabama 10.8
- 44SavannahGeorgia 10.8
- 44GreenvilleSouth Carolina 10.8
- 47NorwoodOhio 10.7
- 47Franklin ParkIllinois 10.7
- 47Lincoln ParkMichigan 10.7
- 50GadsdenAlabama 10.6
- 51NogalesArizona 10.5
- 52JeffersonvilleIndiana 10.4
- 52PascagoulaMississippi 10.4
- 54AthensGeorgia 10.3
- 54HattiesburgMississippi 10.3
- 54ChattanoogaTennessee 10.3
- 54EdinburgTexas 10.3
- 54NapervilleIllinois 10.3
- 54Fort WayneIndiana 10.3
- 54WestervilleOhio 10.3
- 54HarrisburgPennsylvania 10.3
- 54MilwaukeeWisconsin 10.3
- 63LafayetteIndiana 10.2
- 63LebanonPennsylvania 10.2
- 65JacksonMississippi 10.1
- 65Lake ElsinoreCalifornia 10.1
- 67AtlantaGeorgia 10.0
- 67Valley StationKentucky 10.0
- 67HoustonTexas 10.0
- 67EastpointeMichigan 10.0
- 67West MifflinPennsylvania 10.0
- 67FresnoCalifornia 10.0
- 73HuntsvilleAlabama 9.9
- 73DaytonOhio 9.9
- 73Saint AndrewsSouth Carolina 9.9
- 73KokomoIndiana 9.9
- 73MuncieIndiana 9.9
- 73Candler-McAfeeGeorgia 9.9
- 79St. LouisMissouri 9.8
- 79CantonOhio 9.8
- 79ComptonCalifornia 9.8
- 82PrichardAlabama 9.7
- 82Fort SmithArkansas 9.7
- 82BrunswickGeorgia 9.7
- 82HickoryNorth Carolina 9.7
- 82SpringfieldOhio 9.7
- 82BartlettTennessee 9.7
- 82Calumet CityIllinois 9.7
- 82ChicagoIllinois 9.7
- 82JolietIllinois 9.7
- 82DublinOhio 9.7
- 82El PasoTexas 9.7
- 82HelenaMontana 9.7
- 94FlorenceSouth Carolina 9.6
- 95East LakeFlorida 9.5
- 95LemayMissouri 9.5
- 95ClemmonsNorth Carolina 9.5
- 95Winston-SalemNorth Carolina 9.5
- 95CincinnatiOhio 9.5
- 95Ponca CityOklahoma 9.5
- 95HammondIndiana 9.5
- 95MedinaOhio 9.5
- 95South MilwaukeeWisconsin 9.5
- 95WheelingWest Virginia 9.5
- 105SpringdaleArkansas 9.4
- 105DecaturIllinois 9.4
- 105EvansvilleIndiana 9.4
- 105LouisvilleKentucky 9.4
- 105White OakOhio 9.4
- 105LaredoTexas 9.4
- 105PeoriaIllinois 9.4
- 112ValricoFlorida 9.3
- 112Des PlainesIllinois 9.3
- 112NorthbrookIllinois 9.3
- 112TaylorMichigan 9.3
- 112MidwayFlorida 9.3
- 117TampaFlorida 9.2
- 117LexingtonNorth Carolina 9.2
- 117PhiladelphiaPennsylvania 9.2
- 117KnoxvilleTennessee 9.2
- 117NashvilleTennessee 9.2
- 117South BendIndiana 9.2
- 123GreensboroNorth Carolina 9.1
- 123HendersonvilleTennessee 9.1
- 123AkronOhio 9.1
- 123LimaOhio 9.1
- 123SteubenvilleOhio 9.1
- 123CarlislePennsylvania 9.1
- 129GainesvilleFlorida 9.0
- 129JacksonvilleFlorida 9.0
- 129VeniceFlorida 9.0
- 129JasperIndiana 9.0
- 129FayettevilleNorth Carolina 9.0
- 129BaytownTexas 9.0
- 129Live OakTexas 9.0
- 129WaterlooIowa 9.0
- 129RockfordIllinois 9.0
- 129WaukeshaWisconsin 9.0
- 139SpringfieldIllinois 8.9
- 139Saint JosephMissouri 8.9
- 139YorkPennsylvania 8.9
- 139ConroeTexas 8.9
- 139Corpus ChristiTexas 8.9
- 139San AntonioTexas 8.9
- 139YpsilantiMichigan 8.9
- 139MinneapolisMinnesota 8.9
- 139ReadingPennsylvania 8.9
- 139MilwaukieOregon 8.9
- 149Little RockArkansas 8.8
- 149Ferry PassFlorida 8.8
- 149PortageIndiana 8.8
- 149WarrenOhio 8.8
- 149JohnstownPennsylvania 8.8
- 149HanfordCalifornia 8.8
- 155ColumbusIndiana 8.7
- 155University CityMissouri 8.7
- 155CharlotteNorth Carolina 8.7
- 155AshburnVirginia 8.7
- 155Bay CityMichigan 8.7
- 155WyomingMichigan 8.7
- 155YoungstownOhio 8.7
- 155RutlandVermont 8.7
- 155Los AngelesCalifornia 8.7
- 155Jurupa ValleyCalifornia 8.7
- 155VisaliaCalifornia 8.7
- 166DecaturAlabama 8.6
- 166Upper AltonIllinois 8.6
- 166LafayetteLouisiana 8.6
- 166RaleighNorth Carolina 8.6
- 166TexarkanaTexas 8.6
- 166AndersonIndiana 8.6
- 166PittsburghPennsylvania 8.6
- 173JeffersontownKentucky 8.5
- 173ArnoldMissouri 8.5
- 173PortsmouthOhio 8.5
- 173GaryIndiana 8.5
- 173LansingMichigan 8.5
- 173NorristownPennsylvania 8.5
- 173Great FallsMontana 8.5
- 180NewarkDelaware 8.4
- 180Daytona BeachFlorida 8.4
- 180Kansas CityKansas 8.4
- 180Baton RougeLouisiana 8.4
- 180GulfportMississippi 8.4
- 180AustinTexas 8.4
- 180PasadenaTexas 8.4
- 180HarrisonburgVirginia 8.4
- 180ZionIllinois 8.4
- 180Port HuronMichigan 8.4
- 180EwingNew Jersey 8.4
- 180WeirtonWest Virginia 8.4
- 192Port ArthurTexas 8.3
- 192ClintonIowa 8.3
- 192BloomingtonIllinois 8.3
- 192ShakopeeMinnesota 8.3
- 196Ponte Vedra BeachFlorida 8.2
- 196McDonoughGeorgia 8.2
- 196FishersIndiana 8.2
- 196KennerLouisiana 8.2
- 196ShreveportLouisiana 8.2
- 196ClaytonNorth Carolina 8.2
- 196MorrisvilleNorth Carolina 8.2
- 196RichmondVirginia 8.2
- 196SpringfieldVirginia 8.2
- 196HuntingtonWest Virginia 8.2
- 196DavenportIowa 8.2
- 196CalexicoCalifornia 8.2
- 208Bonita SpringsFlorida 8.1
- 208BloomingtonIndiana 8.1
- 208ChesterPennsylvania 8.1
- 208Missouri CityTexas 8.1
- 208Cleveland HeightsOhio 8.1
- 208BurnsvilleMinnesota 8.1
- 208Shaker HeightsOhio 8.1
- 215LakelandFlorida 8.0
- 215Winter ParkFlorida 8.0
- 215Saint MatthewsKentucky 8.0
- 215Saint PaulMinnesota 8.0
- 215Green BayWisconsin 8.0
- 215AnaheimCalifornia 8.0
- 215BurbankCalifornia 8.0
- 215Hawthornelow-cost sensorsCalifornia 8.0
- 215ModestoCalifornia 8.0
- 224MontgomeryAlabama 7.9
- 224West MemphisArkansas 7.9
- 224Fort LauderdaleFlorida 7.9
- 224OlatheKansas 7.9
- 224Fort ThomasKentucky 7.9
- 224PennsaukenNew Jersey 7.9
- 224DallasTexas 7.9
- 224Rose HillVirginia 7.9
- 224PhoenixArizona 7.9
- 224Carsonlow-cost sensorsCalifornia 7.9
- 224UkiahCalifornia 7.9
- 235ElizabethtownKentucky 7.8
- 235BaltimoreMaryland 7.8
- 235RaymoreMissouri 7.8
- 235ColumbiaTennessee 7.8
- 235MaryvilleTennessee 7.8
- 235CharlottesvilleVirginia 7.8
- 235Iowa CityIowa 7.8
- 235CaryIllinois 7.8
- 235RiversideCalifornia 7.8
- 244Lake MaryFlorida 7.7
- 244New AlbanyIndiana 7.7
- 244AshlandKentucky 7.7
- 244Hunt ValleyMaryland 7.7
- 244MooreOklahoma 7.7
- 244BrownsvilleTexas 7.7
- 244LindenNew Jersey 7.7
- 244BuffaloNew York 7.7
- 244McKeesportPennsylvania 7.7
- 244State CollegePennsylvania 7.7
- 244WatertownSouth Dakota 7.7
- 244IndioCalifornia 7.7
- 244MercedCalifornia 7.7
- 257WilmingtonDelaware 7.6
- 257ChalmetteLouisiana 7.6
- 257EdgewoodMaryland 7.6
- 257ScaggsvilleMaryland 7.6
- 257Kansas CityMissouri 7.6
- 257CharlestonWest Virginia 7.6
- 257New York CityNew York 7.6
- 257AppletonWisconsin 7.6
- 257RichmondCalifornia 7.6
- 257Eagle PassTexas 7.6
- 267WashingtonDistrict of Columbia 7.5
- 267Lexington-FayetteKentucky 7.5
- 267JenksOklahoma 7.5
- 267ChesapeakeVirginia 7.5
- 267FlintMichigan 7.5
- 267KeeneNew Hampshire 7.5
- 267ScrantonPennsylvania 7.5
- 267FontanaCalifornia 7.5
- 267TurlockCalifornia 7.5
- 276DoverDelaware 7.4
- 276Fruit CoveFlorida 7.4
- 276SarasotaFlorida 7.4
- 276Saint MichaelMinnesota 7.4
- 276Fort LeeNew Jersey 7.4
- 276AltoonaPennsylvania 7.4
- 276WilkinsburgPennsylvania 7.4
- 276ButteMontana 7.4
- 276Arden-ArcadeCalifornia 7.4
- 285AshevilleNorth Carolina 7.3
- 285LebanonOhio 7.3
- 285McAlesterOklahoma 7.3
- 285Oklahoma CityOklahoma 7.3
- 285Fort WorthTexas 7.3
- 285East HamptonVirginia 7.3
- 285MolineIllinois 7.3
- 285AllentownPennsylvania 7.3
- 285BethlehemPennsylvania 7.3
- 285MadisonWisconsin 7.3
- 285BakersfieldCalifornia 7.3
- 285Chula VistaCalifornia 7.3
- 297SaginawTexas 7.2
- 297BlaineMinnesota 7.2
- 297KenmoreNew York 7.2
- 300FairhopeAlabama 7.1
- 300BearDelaware 7.1
- 300ElktonMaryland 7.1
- 300CookevilleTennessee 7.1
- 300Apple ValleyMinnesota 7.1
- 300UticaNew York 7.1
- 300Torrancelow-cost sensorsCalifornia 7.1
- 300MedfordOregon 7.1
- 300RoseburgOregon 7.1
- 309Safety HarborFlorida 7.0
- 309HernandoMississippi 7.0
- 309Saint CloudMinnesota 7.0
- 309HermitagePennsylvania 7.0
- 309San DiegoCalifornia 7.0
- 314MiamiFlorida 6.9
- 314Toms RiverNew Jersey 6.9
- 314North CharlestonSouth Carolina 6.9
- 314Mission BendTexas 6.9
- 314GreenfieldMassachusetts 6.9
- 314BellevueNebraska 6.9
- 314GahannaOhio 6.9
- 314EriePennsylvania 6.9
- 314Eau ClaireWisconsin 6.9
- 314BanningCalifornia 6.9
- 314CorcoranCalifornia 6.9
- 314SocorroTexas 6.9
- 314ParklandWashington 6.9
- 314RentonWashington 6.9
- 314La Crescenta-Montroselow-cost sensorsCalifornia 6.9
- 329PaducahKentucky 6.8
- 329DyersburgTennessee 6.8
- 329KingsportTennessee 6.8
- 329RoanokeVirginia 6.8
- 329DanburyConnecticut 6.8
- 329AnkenyIowa 6.8
- 329Santa ClaritaCalifornia 6.8
- 329Columbia CityWashington 6.8
- 329Port AngelesWashington 6.8
- 338Coconut CreekFlorida 6.7
- 338GreenvilleNorth Carolina 6.7
- 338MasonOhio 6.7
- 338AugustaMaine 6.7
- 338El CajonCalifornia 6.7
- 338Inglewoodlow-cost sensorsCalifornia 6.7
- 338MaderaCalifornia 6.7
- 338San JoseCalifornia 6.7
- 338DenverColorado 6.7
- 338AmarilloTexas 6.7
- 338LewistonIdaho 6.7
- 349Deerfield BeachFlorida 6.6
- 349New OrleansLouisiana 6.6
- 349HagerstownMaryland 6.6
- 349South VinelandNew Jersey 6.6
- 349TulsaOklahoma 6.6
- 349ConwaySouth Carolina 6.6
- 349HopewellVirginia 6.6
- 349Weirton HeightsWest Virginia 6.6
- 357PleasantvilleNew Jersey 6.5
- 357ClarksvilleTennessee 6.5
- 357JacksonTennessee 6.5
- 357CorsicanaTexas 6.5
- 357RochesterMinnesota 6.5
- 357BayonneNew Jersey 6.5
- 357PatersonNew Jersey 6.5
- 357NewburghNew York 6.5
- 357RochesterNew York 6.5
- 366LawrencevilleGeorgia 6.4
- 366DerbyKansas 6.4
- 366TopekaKansas 6.4
- 366SewellNew Jersey 6.4
- 366WaterburyConnecticut 6.4
- 366MuscatineIowa 6.4
- 366OmahaNebraska 6.4
- 366Jersey CityNew Jersey 6.4
- 366GlendoraCalifornia 6.4
- 375Belle GladeFlorida 6.3
- 375HomesteadFlorida 6.3
- 375Roanoke RapidsNorth Carolina 6.3
- 375Atlantic CityNew Jersey 6.3
- 375EdmondOklahoma 6.3
- 375BeltonTexas 6.3
- 375GalvestonTexas 6.3
- 375West FargoNorth Dakota 6.3
- 375TrentonNew Jersey 6.3
- 375Long BeachCalifornia 6.3
- 375PortervilleCalifornia 6.3
- 375Las VegasNevada 6.3
- 375GreeleyColorado 6.3
- 375Grants PassOregon 6.3
- 389ThorntonColorado 6.2
- 389OdessaTexas 6.2
- 391La PorteTexas 6.1
- 391PainesvilleOhio 6.1
- 391GlendaleArizona 6.1
- 391TempeArizona 6.1
- 391LincolnCalifornia 6.1
- 391SacramentoCalifornia 6.1
- 391Santa CruzCalifornia 6.1
- 391Santa Monicalow-cost sensorsCalifornia 6.1
- 391YakimaWashington 6.1
- 400WellingtonFlorida 6.0
- 400RockvilleMaryland 6.0
- 400College StationTexas 6.0
- 400New HavenConnecticut 6.0
- 400Yuba CityCalifornia 6.0
- 400Rio RanchoNew Mexico 6.0
- 400RedmondOregon 6.0
- 400BellinghamWashington 6.0
- 408HartfordConnecticut 5.9
- 408SpringfieldMassachusetts 5.9
- 408PortlandMaine 5.9
- 408AlbanyNew York 5.9
- 408New CityNew York 5.9
- 408White PlainsNew York 5.9
- 408ClovisCalifornia 5.9
- 415Delray BeachFlorida 5.8
- 415Palm CityFlorida 5.8
- 415Des MoinesIowa 5.8
- 415BridgeportConnecticut 5.8
- 415Casas AdobesArizona 5.8
- 415MantecaCalifornia 5.8
- 415AltamontOregon 5.8
- 422SpringfieldMissouri 5.7
- 422BostonMassachusetts 5.7
- 422PittsfieldMassachusetts 5.7
- 422WorcesterMassachusetts 5.7
- 422LincolnNebraska 5.7
- 422SuperiorWisconsin 5.7
- 422VictorvilleCalifornia 5.7
- 422BozemanMontana 5.7
- 422BismarckNorth Dakota 5.7
- 431Palm BayFlorida 5.6
- 431LibertyMissouri 5.6
- 431SyracuseNew York 5.6
- 431ProvidenceRhode Island 5.6
- 431Casa GrandeArizona 5.6
- 431Agouralow-cost sensorsCalifornia 5.6
- 431Lomitalow-cost sensorsCalifornia 5.6
- 431San FranciscoCalifornia 5.6
- 439MesaArizona 5.5
- 439Carson CityNevada 5.5
- 439EugeneOregon 5.5
- 439TacomaWashington 5.5
- 443New LondonConnecticut 5.4
- 443DuluthMinnesota 5.4
- 443MaranaArizona 5.4
- 443YumaArizona 5.4
- 443El CentroCalifornia 5.4
- 443OceansideCalifornia 5.4
- 443WoodlandCalifornia 5.4
- 443SpokaneWashington 5.4
- 451LawtonOklahoma 5.3
- 451BrocktonMassachusetts 5.3
- 451HollisterCalifornia 5.3
- 451Fort CollinsColorado 5.3
- 451MillcreekUtah 5.3
- 456Fall RiverMassachusetts 5.2
- 456TucsonArizona 5.2
- 456LongmontColorado 5.2
- 456PendletonOregon 5.2
- 456AuburnWashington 5.2
- 461ChicoCalifornia 5.1
- 461OaklandCalifornia 5.1
- 463HaverhillMassachusetts 5.0
- 463LowellMassachusetts 5.0
- 463Arroyo GrandeCalifornia 5.0
- 463PleasantonCalifornia 5.0
- 463TruckeeCalifornia 5.0
- 463AlbuquerqueNew Mexico 5.0
- 463LubbockTexas 5.0
- 463ReddingCalifornia 5.0
- 463SeattleWashington 5.0
- 472WestonFlorida 4.9
- 472New BrunswickNew Jersey 4.9
- 472AberdeenSouth Dakota 4.9
- 472PowayCalifornia 4.9
- 472RenoNevada 4.9
- 472Moses LakeWashington 4.9
- 472SunnysideWashington 4.9
- 472Walla WallaWashington 4.9
- 480AdaOklahoma 4.8
- 480North ChicopeeMassachusetts 4.8
- 480QuincyMassachusetts 4.8
- 480HobbsNew Mexico 4.8
- 480NampaIdaho 4.8
- 480SalemOregon 4.8
- 480TigardOregon 4.8
- 480HighlandUtah 4.8
- 480ShorelineWashington 4.8
- 480WenatcheeWashington 4.8
- 490PortsmouthNew Hampshire 4.7
- 490BrawleyCalifornia 4.7
- 490BillingsMontana 4.7
- 490West JordanUtah 4.7
- 490CentraliaWashington 4.7
- 490HonoluluHawaii 4.7
- 490Makakilo / Kapolei / Honokai HaleHawaii 4.7
- 497PawtucketRhode Island 4.6
- 497RosevilleCalifornia 4.6
- 497BendOregon 4.6
- 500LynnMassachusetts 4.5
- 500BangorMaine 4.5
- 500DerryNew Hampshire 4.5
- 500ParadiseCalifornia 4.5
- 500HillsboroOregon 4.5
- 500VancouverWashington 4.5
- 500AnchorageAlaska 4.5
- 507The DallesOregon 4.4
- 507BremertonWashington 4.4
- 509LewistonMaine 4.3
- 509Simi ValleyCalifornia 4.3
- 509Dodge CityKansas 4.3
- 509HermistonOregon 4.3
- 509Rapid CitySouth Dakota 4.3
- 509Salt Lake CityUtah 4.3
- 509EllensburgWashington 4.3
- 509Spokane ValleyWashington 4.3
- 509KahuluiHawaii 4.3
- 518LaconiaNew Hampshire 4.2
- 518Colorado SpringsColorado 4.2
- 518PortlandOregon 4.2
- 518RandolphNew Jersey 4.2
- 522Spring ValleyNevada 4.1
- 522WoodburnOregon 4.1
- 522OremUtah 4.1
- 525VacavilleCalifornia 4.0
- 525BoiseIdaho 4.0
- 527ConcordCalifornia 3.9
- 527Thousand OaksCalifornia 3.9
- 527AlbanyOregon 3.9
- 527Spanish ForkUtah 3.9
- 527LongviewWashington 3.9
- 527Salmon CreekWashington 3.9
- 533BrookingsSouth Dakota 3.8
- 533GaltCalifornia 3.8
- 533OrcuttCalifornia 3.8
- 533Ken CarylColorado 3.8
- 533AshlandOregon 3.8
- 533Mount VernonWashington 3.8
- 533CasperWyoming 3.8
- 540South LaurelMaryland 3.7
- 540SalinasCalifornia 3.7
- 540San RafaelCalifornia 3.7
- 540Santa BarbaraCalifornia 3.7
- 540Santa RosaCalifornia 3.7
- 540Las CrucesNew Mexico 3.7
- 540Tri-CitiesWashington 3.7
- 547Sioux FallsSouth Dakota 3.6
- 547Coos BayOregon 3.6
- 547MagnaUtah 3.6
- 550Grand JunctionColorado 3.5
- 550MeridianIdaho 3.5
- 550MissoulaMontana 3.5
- 550BeavertonOregon 3.5
- 550Forest GroveOregon 3.5
- 550BountifulUtah 3.5
- 556FolsomCalifornia 3.4
- 556PuebloColorado 3.4
- 556Spanish SpringsNevada 3.4
- 556Apache JunctionArizona 3.4
- 556LaceyWashington 3.4
- 556Summerlin SouthNevada 3.4
- 562GilletteWyoming 3.3
- 563TracyCalifornia 3.2
- 563Coeur d'AleneIdaho 3.2
- 563DallasOregon 3.2
- 563KīheiHawaii 3.2
- 563HiloHawaii 3.2
- 568San Luis ObispoCalifornia 3.1
- 568HendersonNevada 3.1
- 568Idaho FallsIdaho 3.1
- 568PascoWashington 3.1
- 568CheyenneWyoming 3.1
- 573FillmoreCalifornia 3.0
- 573DavisCalifornia 3.0
- 573AberdeenWashington 3.0
- 573OrchardsWashington 3.0
- 577CoventryRhode Island 2.9
- 577AtascaderoCalifornia 2.9
- 577NipomoCalifornia 2.9
- 577CanbyOregon 2.9
- 577McMinnvilleOregon 2.9
- 582EnterpriseNevada 2.8
- 582North OgdenUtah 2.8
- 584GilroyCalifornia 2.7
- 585MoscowIdaho 2.6
- 585Rock SpringsWyoming 2.6
- 587CorvallisOregon 2.5
- 587HerrimanUtah 2.5
- 587BellevueWashington 2.5
- 590LancasterCalifornia 2.4
- 590Oak HarborWashington 2.4
- 590PullmanWashington 2.4
- 593Green ValleyArizona 2.3
- 593Cedar CityUtah 2.3
- 595Boulder CityNevada 2.1
- 595Twin FallsIdaho 2.1
- 595AnacortesWashington 2.1
- 595LaramieWyoming 2.1
- 599LompocCalifornia 2.0
- 599PocatelloIdaho 2.0
- 601MesquiteNevada 1.8
- 601TooeleUtah 1.8
- 603HurricaneUtah 1.7
- 604South Lake TahoeCalifornia 1.3
- 604IssaquahWashington 1.3
- 606MarysvilleWashington 1.0
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+
All cities in the world, February 2024 · United States now
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SmogRank, most polluted cities in United States, PM2.5, February 2024, smogrank.com/us/history/2024-02 (accessed 2 Oct 2026).
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