SmogRank / Countries / United States / November 2023
Most polluted cities in United States, November 2023
593 cities in United States ranked by their average PM2.5 over the 30 days. Worst: Calexico at 51.5 µg/m³, #12 of 1,891 cities in the world. Cleanest: Marysville at 1.4. A city needs measurements on 70% of the days to be ranked.
- 1CalexicoCalifornia 51.5
- 2HanfordCalifornia 19.7
- 3FresnoCalifornia 18.3
- 4CorcoranCalifornia 17.7
- 5BirminghamAlabama 17.0
- 6BakersfieldCalifornia 16.9
- 7BadgerAlaska 16.7
- 8VisaliaCalifornia 16.5
- 9StocktonCalifornia 16.1
- 10AltamontOregon 16.0
- 11DublinOhio 15.8
- 12TurlockCalifornia 15.5
- 13Arden-ArcadeCalifornia 15.0
- 14ModestoCalifornia 14.8
- 15ComptonCalifornia 14.4
- 16ColumbusGeorgia 14.2
- 17BensalemPennsylvania 14.1
- 18East RidgeTennessee 14.0
- 19YakimaWashington 13.7
- 20MercedCalifornia 13.6
- 21Grants PassOregon 13.5
- 21MedfordOregon 13.5
- 23Coeur d'AleneIdaho 13.4
- 24KennesawGeorgia 13.3
- 24ParklandWashington 13.3
- 26LewistonIdaho 13.2
- 26SalemOregon 13.2
- 28IndianapolisIndiana 13.1
- 28HattiesburgMississippi 13.1
- 30SunnysideWashington 13.0
- 31DallasTexas 12.7
- 31ChicoCalifornia 12.7
- 31MillcreekUtah 12.7
- 31Spokane ValleyWashington 12.7
- 35ClovisCalifornia 12.6
- 36Port AngelesWashington 12.5
- 37SpokaneWashington 12.2
- 38EugeneOregon 12.1
- 39West MifflinPennsylvania 12.0
- 40HernandoMississippi 11.9
- 40MiddletownOhio 11.9
- 40ChattanoogaTennessee 11.9
- 40MantecaCalifornia 11.9
- 40SacramentoCalifornia 11.9
- 45ColumbusOhio 11.8
- 45MaderaCalifornia 11.8
- 45NampaIdaho 11.8
- 48Terre HauteIndiana 11.7
- 48SpartanburgSouth Carolina 11.7
- 48WoodburnOregon 11.7
- 48RentonWashington 11.7
- 52Phenix CityAlabama 11.6
- 52Valley StationKentucky 11.6
- 52DetroitMichigan 11.6
- 52Yuba CityCalifornia 11.6
- 56LawrencevilleGeorgia 11.5
- 56Granite CityIllinois 11.5
- 56LouisvilleKentucky 11.5
- 56Hawthornelow-cost sensorsCalifornia 11.5
- 56Jurupa ValleyCalifornia 11.5
- 61MaconGeorgia 11.4
- 61FlorenceSouth Carolina 11.4
- 63RoseburgOregon 11.3
- 63Candler-McAfeeGeorgia 11.3
- 65PascagoulaMississippi 11.2
- 65GreenvilleSouth Carolina 11.2
- 65West JordanUtah 11.2
- 68SavannahGeorgia 11.1
- 68Kansas CityKansas 11.1
- 68LancasterPennsylvania 11.1
- 68WoodlandCalifornia 11.1
- 72TrussvilleAlabama 11.0
- 72GainesvilleGeorgia 11.0
- 72East Saint LouisIllinois 11.0
- 72BartlettTennessee 11.0
- 72EwingNew Jersey 11.0
- 72AnaheimCalifornia 11.0
- 72TacomaWashington 11.0
- 79NorwoodOhio 10.9
- 79ClintonIowa 10.9
- 79East ChicagoIndiana 10.9
- 79AlbanyOregon 10.9
- 83ValdostaGeorgia 10.8
- 83JacksonMississippi 10.8
- 83Winston-SalemNorth Carolina 10.8
- 83Carsonlow-cost sensorsCalifornia 10.8
- 83RichmondCalifornia 10.8
- 83HermistonOregon 10.8
- 83HillsboroOregon 10.8
- 90HuntsvilleAlabama 10.7
- 90ElkhartIndiana 10.7
- 90Grand RapidsMichigan 10.7
- 90Columbia CityWashington 10.7
- 94Long BeachCalifornia 10.6
- 94Las VegasNevada 10.6
- 94WenatcheeWashington 10.6
- 97HueytownAlabama 10.5
- 97AthensGeorgia 10.5
- 97AugustaGeorgia 10.5
- 97EvansvilleIndiana 10.5
- 97CharlotteNorth Carolina 10.5
- 97RaleighNorth Carolina 10.5
- 97KnoxvilleTennessee 10.5
- 97Iowa CityIowa 10.5
- 97KalamazooMichigan 10.5
- 97RedfordMichigan 10.5
- 97WestervilleOhio 10.5
- 97BoiseIdaho 10.5
- 109AlbanyGeorgia 10.4
- 109JeffersonvilleIndiana 10.4
- 109HoustonTexas 10.4
- 109Rio RanchoNew Mexico 10.4
- 113Saint MatthewsKentucky 10.3
- 113LexingtonNorth Carolina 10.3
- 113FontanaCalifornia 10.3
- 116DurhamNorth Carolina 10.2
- 116CantonOhio 10.2
- 116ProvidenceRhode Island 10.2
- 116PhoenixArizona 10.2
- 116HelenaMontana 10.2
- 121ElktonMaryland 10.1
- 121FayettevilleNorth Carolina 10.1
- 121ClevelandOhio 10.1
- 121TigardOregon 10.1
- 121MagnaUtah 10.1
- 121Salt Lake CityUtah 10.1
- 127BrunswickGeorgia 10.0
- 127ShreveportLouisiana 10.0
- 127ClemmonsNorth Carolina 10.0
- 127GreensboroNorth Carolina 10.0
- 127WaterlooIowa 10.0
- 127HarrisburgPennsylvania 10.0
- 127Redwood CityCalifornia 10.0
- 134Baton RougeLouisiana 9.9
- 134PhiladelphiaPennsylvania 9.9
- 134DavenportIowa 9.9
- 134NapervilleIllinois 9.9
- 134TrentonNew Jersey 9.9
- 134LebanonPennsylvania 9.9
- 134San JoseCalifornia 9.9
- 141Ponte Vedra BeachFlorida 9.8
- 141AtlantaGeorgia 9.8
- 141SulphurLouisiana 9.8
- 141SpringfieldOhio 9.8
- 141NashvilleTennessee 9.8
- 141Oak LawnIllinois 9.8
- 141RockfordIllinois 9.8
- 141WaukeshaWisconsin 9.8
- 141YumaArizona 9.8
- 150WilmingtonDelaware 9.7
- 150LafayetteLouisiana 9.7
- 150PortsmouthOhio 9.7
- 150CharlottesvilleVirginia 9.7
- 150OaklandCalifornia 9.7
- 150CentraliaWashington 9.7
- 156Warner RobinsGeorgia 9.6
- 156CincinnatiOhio 9.6
- 156EdmondOklahoma 9.6
- 156PawtucketRhode Island 9.6
- 156RiversideCalifornia 9.6
- 156Torrancelow-cost sensorsCalifornia 9.6
- 156SeattleWashington 9.6
- 163South LaurelMaryland 9.5
- 163St. LouisMissouri 9.5
- 163DaytonOhio 9.5
- 163ChesterPennsylvania 9.5
- 163Fort WorthTexas 9.5
- 163CharlestonWest Virginia 9.5
- 163PortervilleCalifornia 9.5
- 163RedmondOregon 9.5
- 163Tri-CitiesWashington 9.5
- 172GadsdenAlabama 9.4
- 172JasperIndiana 9.4
- 172ChalmetteLouisiana 9.4
- 172Los AngelesCalifornia 9.4
- 172AuburnWashington 9.4
- 172Moses LakeWashington 9.4
- 178MontgomeryAlabama 9.3
- 178OcalaFlorida 9.3
- 178AshlandKentucky 9.3
- 178MorrisvilleNorth Carolina 9.3
- 178ConroeTexas 9.3
- 178SaginawTexas 9.3
- 178CarlislePennsylvania 9.3
- 185White OakOhio 9.2
- 185Calumet CityIllinois 9.2
- 185Franklin ParkIllinois 9.2
- 185JolietIllinois 9.2
- 185ElizabethNew Jersey 9.2
- 185CoventryRhode Island 9.2
- 185BurbankCalifornia 9.2
- 185ButteMontana 9.2
- 193Little RockArkansas 9.1
- 193GulfportMississippi 9.1
- 193BaytownTexas 9.1
- 193Missouri CityTexas 9.1
- 193Lincoln ParkMichigan 9.1
- 193AkronOhio 9.1
- 193Great FallsMontana 9.1
- 193The DallesOregon 9.1
- 193Walla WallaWashington 9.1
- 202JeffersontownKentucky 9.0
- 202GlendaleArizona 9.0
- 202UkiahCalifornia 9.0
- 202El PasoTexas 9.0
- 202VancouverWashington 9.0
- 207JacksonvilleFlorida 8.9
- 207TallahasseeFlorida 8.9
- 207ClaytonNorth Carolina 8.9
- 207Ponca CityOklahoma 8.9
- 207YorkPennsylvania 8.9
- 207ConwaySouth Carolina 8.9
- 207North CharlestonSouth Carolina 8.9
- 207Port ArthurTexas 8.9
- 207ChicagoIllinois 8.9
- 207HollandMichigan 8.9
- 207MedinaOhio 8.9
- 207RosevilleCalifornia 8.9
- 207EllensburgWashington 8.9
- 207LongviewWashington 8.9
- 207ShorelineWashington 8.9
- 222Hunt ValleyMaryland 8.8
- 222AnkenyIowa 8.8
- 222South BendIndiana 8.8
- 222WarrenOhio 8.8
- 222Chula VistaCalifornia 8.8
- 222MoscowIdaho 8.8
- 222BountifulUtah 8.8
- 229McDonoughGeorgia 8.7
- 229Saint JosephMissouri 8.7
- 229TulsaOklahoma 8.7
- 229TexarkanaTexas 8.7
- 229PeoriaIllinois 8.7
- 229Port HuronMichigan 8.7
- 229YpsilantiMichigan 8.7
- 229SteubenvilleOhio 8.7
- 229ReadingPennsylvania 8.7
- 229MilwaukeeWisconsin 8.7
- 229NogalesArizona 8.7
- 229MidwayFlorida 8.7
- 241AustinTexas 8.6
- 241San AntonioTexas 8.6
- 241RichmondVirginia 8.6
- 241CaryIllinois 8.6
- 241LafayetteIndiana 8.6
- 241BethlehemPennsylvania 8.6
- 241PittsburghPennsylvania 8.6
- 241TempeArizona 8.6
- 241Inglewoodlow-cost sensorsCalifornia 8.6
- 241OremUtah 8.6
- 251DecaturIllinois 8.5
- 251MasonOhio 8.5
- 251SpringfieldVirginia 8.5
- 251YoungstownOhio 8.5
- 251McMinnvilleOregon 8.5
- 251PendletonOregon 8.5
- 257PasadenaTexas 8.4
- 257Des PlainesIllinois 8.4
- 259Saint AndrewsSouth Carolina 8.3
- 259ChesapeakeVirginia 8.3
- 259TaylorMichigan 8.3
- 259LindenNew Jersey 8.3
- 259San DiegoCalifornia 8.3
- 259VictorvilleCalifornia 8.3
- 259CanbyOregon 8.3
- 266PaducahKentucky 8.2
- 266BearDelaware 8.2
- 266TopekaKansas 8.2
- 266University CityMissouri 8.2
- 266HickoryNorth Carolina 8.2
- 266PennsaukenNew Jersey 8.2
- 266Rose HillVirginia 8.2
- 266MolineIllinois 8.2
- 266GreenfieldMassachusetts 8.2
- 266ShakopeeMinnesota 8.2
- 266El CajonCalifornia 8.2
- 266AlbuquerqueNew Mexico 8.2
- 266RenoNevada 8.2
- 266MeridianIdaho 8.2
- 266BendOregon 8.2
- 281WashingtonDistrict of Columbia 8.1
- 281SpringfieldIllinois 8.1
- 281Upper AltonIllinois 8.1
- 281CorsicanaTexas 8.1
- 281AndersonIndiana 8.1
- 281Fort WayneIndiana 8.1
- 281Bay CityMichigan 8.1
- 281JohnstownPennsylvania 8.1
- 281McKeesportPennsylvania 8.1
- 281NorristownPennsylvania 8.1
- 281WilkinsburgPennsylvania 8.1
- 281GaltCalifornia 8.1
- 281GreeleyColorado 8.1
- 294Ferry PassFlorida 8.0
- 294Oklahoma CityOklahoma 8.0
- 294Live OakTexas 8.0
- 294NorthbrookIllinois 8.0
- 294South MilwaukeeWisconsin 8.0
- 294WheelingWest Virginia 8.0
- 294PleasantonCalifornia 8.0
- 294San FranciscoCalifornia 8.0
- 302SpringdaleArkansas 7.9
- 302Fruit CoveFlorida 7.9
- 302BloomingtonIndiana 7.9
- 302Lexington-FayetteKentucky 7.9
- 302RoanokeVirginia 7.9
- 302GaryIndiana 7.9
- 302HammondIndiana 7.9
- 302AllentownPennsylvania 7.9
- 302State CollegePennsylvania 7.9
- 302LincolnCalifornia 7.9
- 312East LakeFlorida 7.8
- 312TampaFlorida 7.8
- 312Fort ThomasKentucky 7.8
- 312BaltimoreMaryland 7.8
- 312JenksOklahoma 7.8
- 312ZionIllinois 7.8
- 312KokomoIndiana 7.8
- 312JenisonMichigan 7.8
- 312SalinasCalifornia 7.8
- 312San LeandroCalifornia 7.8
- 312Carson CityNevada 7.8
- 312MissoulaMontana 7.8
- 312Spanish ForkUtah 7.8
- 325Daytona BeachFlorida 7.7
- 325ColumbusIndiana 7.7
- 325New AlbanyIndiana 7.7
- 325EdgewoodMaryland 7.7
- 325Mission BendTexas 7.7
- 325PortageIndiana 7.7
- 325MinneapolisMinnesota 7.7
- 325OceansideCalifornia 7.7
- 325BeavertonOregon 7.7
- 325DallasOregon 7.7
- 325Salmon CreekWashington 7.7
- 336VeniceFlorida 7.6
- 336Kansas CityMissouri 7.6
- 336MooreOklahoma 7.6
- 336GalvestonTexas 7.6
- 336LansingMichigan 7.6
- 336BurnsvilleMinnesota 7.6
- 336ReddingCalifornia 7.6
- 336PortlandOregon 7.6
- 344ElizabethtownKentucky 7.5
- 344East HamptonVirginia 7.5
- 344DanburyConnecticut 7.5
- 344Saint PaulMinnesota 7.5
- 344KeeneNew Hampshire 7.5
- 344Fort LeeNew Jersey 7.5
- 344PatersonNew Jersey 7.5
- 344LimaOhio 7.5
- 344ScrantonPennsylvania 7.5
- 344Casa GrandeArizona 7.5
- 344Lomitalow-cost sensorsCalifornia 7.5
- 344HerrimanUtah 7.5
- 356LebanonOhio 7.4
- 356JacksonTennessee 7.4
- 356BloomingtonIllinois 7.4
- 356Arroyo GrandeCalifornia 7.4
- 356Santa Monicalow-cost sensorsCalifornia 7.4
- 356Coos BayOregon 7.4
- 356Forest GroveOregon 7.4
- 363OlatheKansas 7.3
- 363HagerstownMaryland 7.3
- 363GreenvilleNorth Carolina 7.3
- 363KingsportTennessee 7.3
- 363WaterburyConnecticut 7.3
- 363Shaker HeightsOhio 7.3
- 363MadisonWisconsin 7.3
- 363MesaArizona 7.3
- 363BrawleyCalifornia 7.3
- 363DavisCalifornia 7.3
- 363Santa ClaritaCalifornia 7.3
- 374ValricoFlorida 7.2
- 374DerbyKansas 7.2
- 374KennerLouisiana 7.2
- 374ArnoldMissouri 7.2
- 374South VinelandNew Jersey 7.2
- 374HopewellVirginia 7.2
- 374RochesterMinnesota 7.2
- 374KenmoreNew York 7.2
- 374New York CityNew York 7.2
- 374TooeleUtah 7.2
- 384DecaturAlabama 7.1
- 384Fort SmithArkansas 7.1
- 384West MemphisArkansas 7.1
- 384ScaggsvilleMaryland 7.1
- 384Roanoke RapidsNorth Carolina 7.1
- 384DentonTexas 7.1
- 384RutlandVermont 7.1
- 384North OgdenUtah 7.1
- 384LaceyWashington 7.1
- 393Winter ParkFlorida 7.0
- 393RockvilleMaryland 7.0
- 393AshevilleNorth Carolina 7.0
- 393TruckeeCalifornia 7.0
- 393AshlandOregon 7.0
- 393GreshamOregon 7.0
- 399Cleveland HeightsOhio 6.9
- 399BlaineMinnesota 6.9
- 399Green BayWisconsin 6.9
- 399Agouralow-cost sensorsCalifornia 6.9
- 399PocatelloIdaho 6.9
- 399BillingsMontana 6.9
- 399FairbanksAlaska 6.9
- 406NewarkDelaware 6.8
- 406Bonita SpringsFlorida 6.8
- 406EdinburgTexas 6.8
- 406SpringfieldMassachusetts 6.8
- 406FlintMichigan 6.8
- 406AltoonaPennsylvania 6.8
- 406ConcordCalifornia 6.8
- 413Lake MaryFlorida 6.7
- 413MiamiFlorida 6.7
- 413BeltonTexas 6.7
- 413College StationTexas 6.7
- 413HartfordConnecticut 6.7
- 413New HavenConnecticut 6.7
- 413ToledoOhio 6.7
- 413AppletonWisconsin 6.7
- 421Fort LauderdaleFlorida 6.6
- 421Apple ValleyMinnesota 6.6
- 421Saint MichaelMinnesota 6.6
- 421HermitagePennsylvania 6.6
- 421HighlandUtah 6.6
- 421OrchardsWashington 6.6
- 421PascoWashington 6.6
- 421La Crescenta-Montroselow-cost sensorsCalifornia 6.6
- 429New OrleansLouisiana 6.5
- 429CookevilleTennessee 6.5
- 429LaredoTexas 6.5
- 429AugustaMaine 6.5
- 429Jersey CityNew Jersey 6.5
- 429WatertownSouth Dakota 6.5
- 429BridgeportConnecticut 6.5
- 429BanningCalifornia 6.5
- 429Santa BarbaraCalifornia 6.5
- 429VacavilleCalifornia 6.5
- 429MilwaukieOregon 6.5
- 429AberdeenWashington 6.5
- 441SarasotaFlorida 6.4
- 441PleasantvilleNew Jersey 6.4
- 441La PorteTexas 6.4
- 441MuscatineIowa 6.4
- 441Saint CloudMinnesota 6.4
- 441PainesvilleOhio 6.4
- 441DenverColorado 6.4
- 441ThorntonColorado 6.4
- 449Belle GladeFlorida 6.3
- 449Coconut CreekFlorida 6.3
- 449Delray BeachFlorida 6.3
- 449Toms RiverNew Jersey 6.3
- 449ColumbiaTennessee 6.3
- 449DyersburgTennessee 6.3
- 449MaryvilleTennessee 6.3
- 449Des MoinesIowa 6.3
- 449PortlandMaine 6.3
- 449West FargoNorth Dakota 6.3
- 449AlbanyNew York 6.3
- 449San RafaelCalifornia 6.3
- 461PrichardAlabama 6.2
- 461LakelandFlorida 6.2
- 461WellingtonFlorida 6.2
- 461Casas AdobesArizona 6.2
- 461El CentroCalifornia 6.2
- 461Grand JunctionColorado 6.2
- 461BellinghamWashington 6.2
- 461Mount VernonWashington 6.2
- 469LawtonOklahoma 6.1
- 469NewburghNew York 6.1
- 469EriePennsylvania 6.1
- 469Eau ClaireWisconsin 6.1
- 469La CrosseWisconsin 6.1
- 469SocorroTexas 6.1
- 469Fort CollinsColorado 6.1
- 469BremertonWashington 6.1
- 469PullmanWashington 6.1
- 478McAlesterOklahoma 6.0
- 478BayonneNew Jersey 6.0
- 478White PlainsNew York 6.0
- 478Santa CruzCalifornia 6.0
- 478Santa RosaCalifornia 6.0
- 483FairhopeAlabama 5.9
- 483FishersIndiana 5.9
- 483Lexingtonlow-cost sensorsMassachusetts 5.9
- 483WorcesterMassachusetts 5.9
- 483BellevueNebraska 5.9
- 483GahannaOhio 5.9
- 483MaranaArizona 5.9
- 483PowayCalifornia 5.9
- 483LubbockTexas 5.9
- 492GainesvilleFlorida 5.8
- 492Corpus ChristiTexas 5.8
- 492BostonMassachusetts 5.8
- 492BrocktonMassachusetts 5.8
- 492LewistonMaine 5.8
- 492RochesterNew York 5.8
- 492OrcuttCalifornia 5.8
- 492Thousand OaksCalifornia 5.8
- 492Spanish SpringsNevada 5.8
- 492Twin FallsIdaho 5.8
- 492BozemanMontana 5.8
- 503Deerfield BeachFlorida 5.7
- 503ClarksvilleTennessee 5.7
- 503New LondonConnecticut 5.7
- 503UticaNew York 5.7
- 503GlendoraCalifornia 5.7
- 503Lake ElsinoreCalifornia 5.7
- 503LongmontColorado 5.7
- 510Fall RiverMassachusetts 5.6
- 510North ChicopeeMassachusetts 5.6
- 510BuffaloNew York 5.6
- 510BurlingtonVermont 5.6
- 510TucsonArizona 5.6
- 510AtascaderoCalifornia 5.6
- 510BismarckNorth Dakota 5.6
- 517DavieFlorida 5.5
- 517Safety HarborFlorida 5.5
- 517Atlantic CityNew Jersey 5.5
- 517LincolnNebraska 5.5
- 517OmahaNebraska 5.5
- 517New CityNew York 5.5
- 517Weirton HeightsWest Virginia 5.5
- 524HendersonvilleTennessee 5.4
- 524QuincyMassachusetts 5.4
- 524AberdeenSouth Dakota 5.4
- 527Palm CityFlorida 5.3
- 527HaverhillMassachusetts 5.3
- 527PittsfieldMassachusetts 5.3
- 527SyracuseNew York 5.3
- 527ParadiseCalifornia 5.3
- 527HendersonNevada 5.3
- 527AnchorageAlaska 5.3
- 534LemayMissouri 5.2
- 534RaymoreMissouri 5.2
- 534San Luis ObispoCalifornia 5.2
- 534TracyCalifornia 5.2
- 534AmarilloTexas 5.2
- 534Eagle PassTexas 5.2
- 540WestonFlorida 5.1
- 540LibertyMissouri 5.1
- 540LowellMassachusetts 5.1
- 540LynnMassachusetts 5.1
- 540Spring ValleyNevada 5.1
- 540OdessaTexas 5.1
- 546Palm BayFlorida 5.0
- 546AdaOklahoma 5.0
- 546Simi ValleyCalifornia 5.0
- 546Idaho FallsIdaho 5.0
- 546Makakilo / Kapolei / Honokai HaleHawaii 5.0
- 551PortsmouthNew Hampshire 4.9
- 551South Lake TahoeCalifornia 4.9
- 553DuluthMinnesota 4.8
- 553SuperiorWisconsin 4.8
- 555FillmoreCalifornia 4.7
- 555Rapid CitySouth Dakota 4.7
- 555IssaquahWashington 4.7
- 558LompocCalifornia 4.6
- 558NipomoCalifornia 4.6
- 560BangorMaine 4.5
- 560DerryNew Hampshire 4.5
- 562Cedar CityUtah 4.4
- 562BellevueWashington 4.4
- 564Apache JunctionArizona 4.3
- 565GilroyCalifornia 4.2
- 565HollisterCalifornia 4.2
- 567SpringfieldMissouri 4.1
- 567Sioux FallsSouth Dakota 4.1
- 567HurricaneUtah 4.1
- 570BrookingsSouth Dakota 4.0
- 570EnterpriseNevada 4.0
- 570Oak HarborWashington 4.0
- 573LaconiaNew Hampshire 3.9
- 573GilletteWyoming 3.9
- 573Rock SpringsWyoming 3.9
- 573HonoluluHawaii 3.9
- 577Colorado SpringsColorado 3.8
- 578LancasterCalifornia 3.7
- 578CorvallisOregon 3.7
- 578KahuluiHawaii 3.7
- 581MesquiteNevada 3.6
- 581CheyenneWyoming 3.6
- 583Summerlin SouthNevada 3.3
- 584Boulder CityNevada 3.2
- 584HiloHawaii 3.2
- 586Green ValleyArizona 3.0
- 586Ken CarylColorado 3.0
- 586CasperWyoming 3.0
- 589Las CrucesNew Mexico 2.9
- 590KīheiHawaii 2.7
- 591LaramieWyoming 2.4
- 592AnacortesWashington 1.4
- 592MarysvilleWashington 1.4
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, November 2023 · United States now
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SmogRank, most polluted cities in United States, PM2.5, November 2023, smogrank.com/us/history/2023-11 (accessed 2 Oct 2026).
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