SmogRank / World / United States / February 2025

Most polluted cities in United States, February 2025

638 cities in United States ranked by their average PM2.5 over the 28 days. Worst: Augusta at 17.6 µg/m³, #664 of 2,264 cities in the world. Cleanest: Mount Vernon at 1.5. A city needs measurements on 70% of the days to be ranked.

← Augusta 17.6 µg/m³ 20 µg/m³0
Every city in United States ranked for February 2025, one column each, worst on the left and cleanest on the right; height is PM2.5 in µg/m³. Point at it to read a city; tap to open it.
  1. 1AugustaGeorgia
    67
  2. 2SocorroTexas
    65
  3. 3NogalesArizona
    64
  4. 4ColumbusGeorgia
    60
  5. 5Jurupa ValleyCalifornia
    59
  6. 6MaconGeorgia
    59
  7. 7BadgerAlaska
    59
  8. 8RedfordMichigan
    58
  9. 9AlbanyGeorgia
    58
  10. 10Warner RobinsGeorgia
    58
  11. 10Hawthornelow-cost sensorsCalifornia
    58
  12. 12McAlesterOklahoma
    58
  13. 13Sunland ParkNew Mexico
    57
  14. 13HelenaMontana
    57
  15. 15CalexicoCalifornia
    57
  16. 16BozemanMontana
    56
  17. 17North CharlestonSouth Carolina
    56
  18. 17PhoenixArizona
    56
  19. 17BurbankCalifornia
    56
  20. 17Carsonlow-cost sensorsCalifornia
    56
  21. 21ComptonCalifornia
    56
  22. 22ValdostaGeorgia
    56
  23. 22HanfordCalifornia
    56
  24. 22FairbanksAlaska
    56
  25. 25BirminghamAlabama
    55
  26. 25Los AngelesCalifornia
    55
  27. 27ChicoCalifornia
    55
  28. 28FontanaCalifornia
    55
  29. 28San DiegoCalifornia
    55
  30. 28Great FallsMontana
    55
  31. 31SavannahGeorgia
    55
  32. 31KennerLouisiana
    55
  33. 31OregonOhio
    55
  34. 34HoustonTexas
    55
  35. 35AnaheimCalifornia
    54
  36. 35Inglewoodlow-cost sensorsCalifornia
    54
  37. 35Arvadalow-cost sensorsColorado
    54
  38. 38FlorenceSouth Carolina
    54
  39. 38Torrancelow-cost sensorsCalifornia
    54
  40. 40BrunswickGeorgia
    54
  41. 41RiversideCalifornia
    54
  42. 42TallahasseeFlorida
    54
  43. 42WyomingMichigan
    54
  44. 42CorcoranCalifornia
    54
  45. 42FresnoCalifornia
    54
  46. 46BessemerAlabama
    53
  47. 46MiddletownOhio
    53
  48. 46GaryIndiana
    53
  49. 46Chula VistaCalifornia
    53
  50. 46VisaliaCalifornia
    53
  51. 51FishersIndiana
    53
  52. 51New AlbanyIndiana
    53
  53. 51Santa BarbaraCalifornia
    53
  54. 51Santa Monicalow-cost sensorsCalifornia
    53
  55. 55Ferry PassFlorida
    53
  56. 55PerrysburgOhio
    53
  57. 57WaterlooIowa
    53
  58. 58ConwaySouth Carolina
    53
  59. 58BellevueNebraska
    53
  60. 58AltamontOregon
    53
  61. 61MontgomeryAlabama
    52
  62. 61NorwoodOhio
    52
  63. 63HattiesburgMississippi
    52
  64. 63GreenvilleSouth Carolina
    52
  65. 63DetroitMichigan
    52
  66. 63WestervilleOhio
    52
  67. 67JacksonvilleFlorida
    52
  68. 67Ponte Vedra BeachFlorida
    52
  69. 67PascagoulaMississippi
    52
  70. 67ClevelandOhio
    52
  71. 71LexingtonNorth Carolina
    52
  72. 71ConroeTexas
    52
  73. 71Bay CityMichigan
    52
  74. 71BakersfieldCalifornia
    52
  75. 71YakimaWashington
    52
  76. 76IndianapolisIndiana
    52
  77. 76DoltonIllinois
    52
  78. 76CantonOhio
    52
  79. 76DublinOhio
    52
  80. 76Long BeachCalifornia
    52
  81. 76MidwayFlorida
    52
  82. 82AthensGeorgia
    52
  83. 82WichitaKansas
    52
  84. 82East RidgeTennessee
    52
  85. 82PasadenaTexas
    52
  86. 82MuscatineIowa
    52
  87. 82DearbornMichigan
    52
  88. 82ThorntonColorado
    52
  89. 89ColumbusOhio
    51
  90. 89Fort WayneIndiana
    51
  91. 89Lincoln ParkMichigan
    51
  92. 89HarrisburgPennsylvania
    51
  93. 89DenverColorado
    51
  94. 94PrichardAlabama
    51
  95. 94ValricoFlorida
    51
  96. 94LawrencevilleGeorgia
    51
  97. 94SpartanburgSouth Carolina
    51
  98. 94ElkhartIndiana
    51
  99. 94La VistaNebraska
    51
  100. 94BrookingsSouth Dakota
    51
  101. 94ClovisCalifornia
    51
  102. 94AnchorageAlaska
    51
  103. 103PhiladelphiaPennsylvania
    51
  104. 103Missouri CityTexas
    51
  105. 103SteubenvilleOhio
    51
  106. 103YumaArizona
    51
  107. 103PortervilleCalifornia
    51
  108. 103Candler-McAfeeGeorgia
    51
  109. 109OcalaFlorida
    50
  110. 109GainesvilleGeorgia
    50
  111. 109PortsmouthOhio
    50
  112. 109CarlislePennsylvania
    50
  113. 109West MifflinPennsylvania
    50
  114. 109MesaArizona
    50
  115. 109El CajonCalifornia
    50
  116. 109Lomitalow-cost sensorsCalifornia
    50
  117. 117JacksonMississippi
    49
  118. 117Shaker HeightsOhio
    49
  119. 117WarrenOhio
    49
  120. 117MaranaArizona
    49
  121. 117LongmontColorado
    49
  122. 117MedfordOregon
    49
  123. 123Little RockArkansas
    49
  124. 123DaytonOhio
    49
  125. 123EdinburgTexas
    49
  126. 123Elmwood ParkIllinois
    49
  127. 123Franklin ParkIllinois
    49
  128. 123Port HuronMichigan
    49
  129. 123SouthfieldMichigan
    49
  130. 123BerkeleyCalifornia
    49
  131. 131TrussvilleAlabama
    48
  132. 131Terre HauteIndiana
    48
  133. 131Oklahoma CityOklahoma
    48
  134. 131La PorteTexas
    48
  135. 131Calumet CityIllinois
    48
  136. 131KalamazooMichigan
    48
  137. 131TaylorMichigan
    48
  138. 131AkronOhio
    48
  139. 131ReadingPennsylvania
    48
  140. 131WaukeshaWisconsin
    48
  141. 131LewistonIdaho
    48
  142. 142ChesterPennsylvania
    48
  143. 142LebanonPennsylvania
    48
  144. 144SpringdaleArkansas
    47
  145. 144Baton RougeLouisiana
    47
  146. 144TulsaOklahoma
    47
  147. 144EastpointeMichigan
    47
  148. 144AllentownPennsylvania
    47
  149. 144LancasterPennsylvania
    47
  150. 144NipomoCalifornia
    47
  151. 144OceansideCalifornia
    47
  152. 152VeniceFlorida
    47
  153. 152GulfportMississippi
    47
  154. 152CharlotteNorth Carolina
    47
  155. 152LaredoTexas
    47
  156. 152NapervilleIllinois
    47
  157. 152YoungstownOhio
    47
  158. 152BensalemPennsylvania
    47
  159. 152Casa GrandeArizona
    47
  160. 152GlendaleArizona
    47
  161. 152StocktonCalifornia
    47
  162. 162DecaturIllinois
    46
  163. 162Saint AndrewsSouth Carolina
    46
  164. 162BaytownTexas
    46
  165. 162MissionTexas
    46
  166. 162East ChicagoIndiana
    46
  167. 162HammondIndiana
    46
  168. 162South BendIndiana
    46
  169. 162GahannaOhio
    46
  170. 162TempeArizona
    46
  171. 162SheridanWyoming
    46
  172. 172FairhopeAlabama
    46
  173. 172West PensacolaFlorida
    46
  174. 172Hunt ValleyMaryland
    46
  175. 172BrownsvilleTexas
    46
  176. 172Fort WorthTexas
    46
  177. 172Mission BendTexas
    46
  178. 172San AntonioTexas
    46
  179. 172PortageIndiana
    46
  180. 172Grand RapidsMichigan
    46
  181. 172HollandMichigan
    46
  182. 172PawtucketRhode Island
    46
  183. 172South MilwaukeeWisconsin
    46
  184. 184WilmingtonDelaware
    45
  185. 184Daytona BeachFlorida
    45
  186. 184Fruit CoveFlorida
    45
  187. 184TampaFlorida
    45
  188. 184CincinnatiOhio
    45
  189. 184JenksOklahoma
    45
  190. 184NashvilleTennessee
    45
  191. 184SaginawTexas
    45
  192. 184CaryIllinois
    45
  193. 184ChicagoIllinois
    45
  194. 184JolietIllinois
    45
  195. 184YpsilantiMichigan
    45
  196. 184MedinaOhio
    45
  197. 184PowayCalifornia
    45
  198. 184UkiahCalifornia
    45
  199. 184Rio RanchoNew Mexico
    45
  200. 184ButteMontana
    45
  201. 201JeffersonvilleIndiana
    44
  202. 201Saint JosephMissouri
    44
  203. 201FayettevilleNorth Carolina
    44
  204. 201White OakOhio
    44
  205. 201EdmondOklahoma
    44
  206. 201WilkinsburgPennsylvania
    44
  207. 201LittletonColorado
    44
  208. 201Arden-ArcadeCalifornia
    44
  209. 209Oak RidgeFlorida
    44
  210. 209Granite CityIllinois
    44
  211. 209ColumbusIndiana
    44
  212. 209BaltimoreMaryland
    44
  213. 209SpringfieldOhio
    44
  214. 209MooreOklahoma
    44
  215. 209YorkPennsylvania
    44
  216. 209HendersonvilleTennessee
    44
  217. 209PeoriaIllinois
    44
  218. 209MuncieIndiana
    44
  219. 209PainesvilleOhio
    44
  220. 209BethlehemPennsylvania
    44
  221. 209PittsburghPennsylvania
    44
  222. 209TurlockCalifornia
    44
  223. 209WoodlandCalifornia
    44
  224. 209Fort CollinsColorado
    44
  225. 209Port AngelesWashington
    44
  226. 209SunnysideWashington
    44
  227. 227St. PetersburgFlorida
    43
  228. 227MilwaukeeWisconsin
    43
  229. 227WeirtonWest Virginia
    43
  230. 230GadsdenAlabama
    43
  231. 230EdgewoodMaryland
    43
  232. 230AustinTexas
    43
  233. 230BrookfieldIllinois
    43
  234. 230ElginIllinois
    43
  235. 230Oak LawnIllinois
    43
  236. 230Michigan CityIndiana
    43
  237. 230MinneapolisMinnesota
    43
  238. 230WheelingWest Virginia
    43
  239. 230Santa ClaritaCalifornia
    43
  240. 230OdessaTexas
    43
  241. 241EvansvilleIndiana
    42
  242. 241Cleveland HeightsOhio
    42
  243. 241Des PlainesIllinois
    42
  244. 241GreenfieldMassachusetts
    42
  245. 241BuffaloNew York
    42
  246. 241NorristownPennsylvania
    42
  247. 241MadisonWisconsin
    42
  248. 241Florinlow-cost sensorsCalifornia
    42
  249. 241San JoseCalifornia
    42
  250. 250AtlantaGeorgia
    42
  251. 250LouisvilleKentucky
    42
  252. 250SewellNew Jersey
    42
  253. 250LawtonOklahoma
    42
  254. 250Ponca CityOklahoma
    42
  255. 250BartlettTennessee
    42
  256. 250KnoxvilleTennessee
    42
  257. 250RochesterMinnesota
    42
  258. 250GlendoraCalifornia
    42
  259. 250BillingsMontana
    42
  260. 250SpokaneWashington
    42
  261. 261HuntsvilleAlabama
    41
  262. 261McDonoughGeorgia
    41
  263. 261Upper AltonIllinois
    41
  264. 261Kansas CityKansas
    41
  265. 261ArnoldMissouri
    41
  266. 261Live OakTexas
    41
  267. 261ChampaignIllinois
    41
  268. 261AndersonIndiana
    41
  269. 261RochesterNew York
    41
  270. 261Eau ClaireWisconsin
    41
  271. 261Las VegasNevada
    41
  272. 261Grants PassOregon
    41
  273. 273TopekaKansas
    41
  274. 273ChalmetteLouisiana
    41
  275. 273RockvilleMaryland
    41
  276. 273HernandoMississippi
    41
  277. 273DurhamNorth Carolina
    41
  278. 273LebanonOhio
    41
  279. 273San MarcosTexas
    41
  280. 273AuroraIllinois
    41
  281. 273Green BayWisconsin
    41
  282. 273Ken CarylColorado
    41
  283. 273Spanish SpringsNevada
    41
  284. 273Spokane ValleyWashington
    41
  285. 285DecaturAlabama
    40
  286. 285Fort MyersFlorida
    40
  287. 285East Saint LouisIllinois
    40
  288. 285JeffersontownKentucky
    40
  289. 285ClaytonNorth Carolina
    40
  290. 285Corpus ChristiTexas
    40
  291. 285Des MoinesIowa
    40
  292. 285BloomingtonIllinois
    40
  293. 285FlintMichigan
    40
  294. 285LansingMichigan
    40
  295. 285AppletonWisconsin
    40
  296. 296JasperIndiana
    39
  297. 296Valley StationKentucky
    39
  298. 296St. LouisMissouri
    39
  299. 296HickoryNorth Carolina
    39
  300. 296MasonOhio
    39
  301. 296CorsicanaTexas
    39
  302. 296KokomoIndiana
    39
  303. 296JenisonMichigan
    39
  304. 296LindenNew Jersey
    39
  305. 296MaderaCalifornia
    39
  306. 296RosevilleCalifornia
    39
  307. 296GreeleyColorado
    39
  308. 308Fort SmithArkansas
    39
  309. 308NewarkDelaware
    39
  310. 308MiamiFlorida
    39
  311. 308Winter ParkFlorida
    39
  312. 308OlatheKansas
    39
  313. 308PennsaukenNew Jersey
    39
  314. 308BeltonTexas
    39
  315. 308SpringfieldVirginia
    39
  316. 308HartfordConnecticut
    39
  317. 308ClintonIowa
    39
  318. 308Iowa CityIowa
    39
  319. 308LafayetteIndiana
    39
  320. 308PortlandMaine
    39
  321. 308MankatoMinnesota
    39
  322. 308New York CityNew York
    39
  323. 308LimaOhio
    39
  324. 308JohnstownPennsylvania
    39
  325. 308ScrantonPennsylvania
    39
  326. 308Casas AdobesArizona
    39
  327. 308ModestoCalifornia
    39
  328. 308AlbuquerqueNew Mexico
    39
  329. 308Coeur d'AleneIdaho
    39
  330. 308WenatcheeWashington
    39
  331. 331Lake MaryFlorida
    38
  332. 331SarasotaFlorida
    38
  333. 331DerbyKansas
    38
  334. 331OwensboroKentucky
    38
  335. 331New OrleansLouisiana
    38
  336. 331HagerstownMaryland
    38
  337. 331RaleighNorth Carolina
    38
  338. 331New HavenConnecticut
    38
  339. 331WaterburyConnecticut
    38
  340. 331NorthbrookIllinois
    38
  341. 331Fort LeeNew Jersey
    38
  342. 331ProvidenceRhode Island
    38
  343. 331TucsonArizona
    38
  344. 331AtascaderoCalifornia
    38
  345. 331NampaIdaho
    38
  346. 331MillcreekUtah
    38
  347. 331RentonWashington
    38
  348. 331Four CornersFlorida
    38
  349. 349GainesvilleFlorida
    38
  350. 349BloomingtonIndiana
    38
  351. 349Lexington-FayetteKentucky
    38
  352. 349Saint MatthewsKentucky
    38
  353. 349SulphurLouisiana
    38
  354. 349MorrisvilleNorth Carolina
    38
  355. 349ChattanoogaTennessee
    38
  356. 349ColumbiaTennessee
    38
  357. 349ChesapeakeVirginia
    38
  358. 349CharlestonWest Virginia
    38
  359. 349HuntingtonWest Virginia
    38
  360. 349DanburyConnecticut
    38
  361. 349DavenportIowa
    38
  362. 349MolineIllinois
    38
  363. 349RockfordIllinois
    38
  364. 349Apple ValleyMinnesota
    38
  365. 349BurnsvilleMinnesota
    38
  366. 349Saint PaulMinnesota
    38
  367. 349HermitagePennsylvania
    38
  368. 349MantecaCalifornia
    38
  369. 349BoulderColorado
    38
  370. 349PendletonOregon
    38
  371. 371DoverDelaware
    37
  372. 371Safety HarborFlorida
    37
  373. 371SpringfieldIllinois
    37
  374. 371LeawoodKansas
    37
  375. 371LemayMissouri
    37
  376. 371University CityMissouri
    37
  377. 371South VinelandNew Jersey
    37
  378. 371TaylorTexas
    37
  379. 371BangorMaine
    37
  380. 371UticaNew York
    37
  381. 371McKeesportPennsylvania
    37
  382. 382Fort LauderdaleFlorida
    37
  383. 382AshevilleNorth Carolina
    37
  384. 382ClemmonsNorth Carolina
    37
  385. 382Winston-SalemNorth Carolina
    37
  386. 382DallasTexas
    37
  387. 382DentonTexas
    37
  388. 382SpringfieldMassachusetts
    37
  389. 382ShakopeeMinnesota
    37
  390. 382WatertownSouth Dakota
    37
  391. 391Palm CityFlorida
    36
  392. 391ElktonMaryland
    36
  393. 391ZionIllinois
    36
  394. 391BlaineMinnesota
    36
  395. 391TrentonNew Jersey
    36
  396. 391AlbanyNew York
    36
  397. 391Weirton HeightsWest Virginia
    36
  398. 391Arroyo GrandeCalifornia
    36
  399. 391MercedCalifornia
    36
  400. 391HermistonOregon
    36
  401. 391AnacortesWashington
    36
  402. 391AuburnWashington
    36
  403. 391TacomaWashington
    36
  404. 404BearDelaware
    36
  405. 404Belle GladeFlorida
    36
  406. 404NicholasvilleKentucky
    36
  407. 404HarrisonburgVirginia
    36
  408. 404Cedar RapidsIowa
    36
  409. 404AugustaMaine
    36
  410. 404OmahaNebraska
    36
  411. 404KeeneNew Hampshire
    36
  412. 404EwingNew Jersey
    36
  413. 404OaklandCalifornia
    36
  414. 404Eagle PassTexas
    36
  415. 415WashingtonDistrict of Columbia
    35
  416. 415Fort ThomasKentucky
    35
  417. 415LafayetteLouisiana
    35
  418. 415ClarksvilleTennessee
    35
  419. 415Saint CloudMinnesota
    35
  420. 415BayonneNew Jersey
    35
  421. 415SyracuseNew York
    35
  422. 415White PlainsNew York
    35
  423. 415AltoonaPennsylvania
    35
  424. 415EriePennsylvania
    35
  425. 415State CollegePennsylvania
    35
  426. 415South Lake TahoeCalifornia
    35
  427. 427ScaggsvilleMaryland
    34
  428. 427DyersburgTennessee
    34
  429. 427Saint MichaelMinnesota
    34
  430. 427NewburghNew York
    34
  431. 427RutlandVermont
    34
  432. 427BrawleyCalifornia
    34
  433. 427SacramentoCalifornia
    34
  434. 427WindsorColorado
    34
  435. 427Rapid CitySouth Dakota
    34
  436. 427EllensburgWashington
    34
  437. 437PaducahKentucky
    34
  438. 437Kansas CityMissouri
    34
  439. 437SpringfieldMissouri
    34
  440. 437GreensboroNorth Carolina
    34
  441. 437JacksonTennessee
    34
  442. 437MaryvilleTennessee
    34
  443. 437MartinezCalifornia
    34
  444. 437The DallesOregon
    34
  445. 437Columbia CityWashington
    34
  446. 446OrlandoFlorida
    33
  447. 446AshlandKentucky
    33
  448. 446LibertyMissouri
    33
  449. 446GalvestonTexas
    33
  450. 446AshburnVirginia
    33
  451. 446East HamptonVirginia
    33
  452. 446RichmondVirginia
    33
  453. 446Jersey CityNew Jersey
    33
  454. 446New CityNew York
    33
  455. 446AberdeenSouth Dakota
    33
  456. 446SuperiorWisconsin
    33
  457. 446BridgeportConnecticut
    33
  458. 446Agouralow-cost sensorsCalifornia
    33
  459. 446GaltCalifornia
    33
  460. 446West JordanUtah
    33
  461. 446La Crescenta-Montroselow-cost sensorsCalifornia
    33
  462. 462HomesteadFlorida
    33
  463. 462FraminghamMassachusetts
    33
  464. 462WorcesterMassachusetts
    33
  465. 462PatersonNew Jersey
    33
  466. 462HolbrookNew York
    33
  467. 462LincolnCalifornia
    33
  468. 462MilwaukieOregon
    33
  469. 462SeattleWashington
    33
  470. 470WellingtonFlorida
    32
  471. 470GreenvilleNorth Carolina
    32
  472. 470Rose HillVirginia
    32
  473. 470BostonMassachusetts
    32
  474. 470LivermoreCalifornia
    32
  475. 470VictorvilleCalifornia
    32
  476. 470Yuba CityCalifornia
    32
  477. 470BoiseIdaho
    32
  478. 478Bonita SpringsFlorida
    32
  479. 478DavieFlorida
    32
  480. 478Toms RiverNew Jersey
    32
  481. 478TexarkanaTexas
    32
  482. 478AnkenyIowa
    32
  483. 478Grand JunctionColorado
    32
  484. 478TigardOregon
    32
  485. 478OremUtah
    32
  486. 478Moses LakeWashington
    32
  487. 478ParklandWashington
    32
  488. 478Walla WallaWashington
    32
  489. 489Deerfield BeachFlorida
    31
  490. 489RaymoreMissouri
    31
  491. 489CookevilleTennessee
    31
  492. 489North ChicopeeMassachusetts
    31
  493. 489IndioCalifornia
    31
  494. 489Lake ElsinoreCalifornia
    31
  495. 489Cañon CityColorado
    31
  496. 489West Valley CityUtah
    31
  497. 497ElizabethNew Jersey
    31
  498. 497FolsomCalifornia
    31
  499. 497LompocCalifornia
    31
  500. 497OxnardCalifornia
    31
  501. 497San FranciscoCalifornia
    31
  502. 497PuebloColorado
    31
  503. 497Apache JunctionArizona
    31
  504. 504Delray BeachFlorida
    30
  505. 504New LondonConnecticut
    30
  506. 504LowellMassachusetts
    30
  507. 504LincolnNebraska
    30
  508. 504SalinasCalifornia
    30
  509. 504VallejoCalifornia
    30
  510. 504Carson CityNevada
    30
  511. 504MeridianIdaho
    30
  512. 504GreshamOregon
    30
  513. 504RoseburgOregon
    30
  514. 514DuluthMinnesota
    29
  515. 514South San Franciscolow-cost sensorsCalifornia
    29
  516. 514RenoNevada
    29
  517. 514LongviewWashington
    29
  518. 518WestonFlorida
    29
  519. 518CharlottesvilleVirginia
    29
  520. 518HopewellVirginia
    29
  521. 518LewistonMaine
    29
  522. 518LaconiaNew Hampshire
    29
  523. 518El CentroCalifornia
    29
  524. 518Santa CruzCalifornia
    29
  525. 518EugeneOregon
    29
  526. 518PortlandOregon
    29
  527. 527Coconut CreekFlorida
    28
  528. 527Palm BayFlorida
    28
  529. 527HillsboroOregon
    28
  530. 527SalemOregon
    28
  531. 527HighlandUtah
    28
  532. 527Salt Lake CityUtah
    28
  533. 527Oxon Hill-GlassmanorMaryland
    28
  534. 534South LaurelMaryland
    28
  535. 534KingsportTennessee
    28
  536. 534BrocktonMassachusetts
    28
  537. 534Fall RiverMassachusetts
    28
  538. 534Dodge CityKansas
    28
  539. 534BountifulUtah
    28
  540. 534Brigham CityUtah
    28
  541. 534MagnaUtah
    28
  542. 534LaceyWashington
    28
  543. 534KīheiHawaii
    28
  544. 544HaverhillMassachusetts
    27
  545. 544HendersonNevada
    27
  546. 544WoodburnOregon
    27
  547. 544North OgdenUtah
    27
  548. 544HonoluluHawaii
    27
  549. 549RoanokeVirginia
    27
  550. 549MilfordMassachusetts
    27
  551. 549PittsfieldMassachusetts
    27
  552. 549TracyCalifornia
    27
  553. 553QuincyMassachusetts
    26
  554. 553New BrunswickNew Jersey
    26
  555. 553BanningCalifornia
    26
  556. 553Goletalow-cost sensorsCalifornia
    26
  557. 553Santa RosaCalifornia
    26
  558. 553Simi ValleyCalifornia
    26
  559. 553EnterpriseNevada
    26
  560. 553VancouverWashington
    26
  561. 553CheyenneWyoming
    26
  562. 553RandolphNew Jersey
    26
  563. 563DavisCalifornia
    26
  564. 563TemeculaCalifornia
    26
  565. 563MissoulaMontana
    26
  566. 563AlbanyOregon
    26
  567. 563TooeleUtah
    26
  568. 563KahuluiHawaii
    26
  569. 569VacavilleCalifornia
    25
  570. 569CasperWyoming
    25
  571. 571West FargoNorth Dakota
    24
  572. 571PortsmouthNew Hampshire
    24
  573. 571GilroyCalifornia
    24
  574. 571AshlandOregon
    24
  575. 571BendOregon
    24
  576. 571BellinghamWashington
    24
  577. 571Makakilo / Kapolei / Honokai HaleHawaii
    24
  578. 578Atlantic CityNew Jersey
    24
  579. 578LynnMassachusetts
    24
  580. 578Sioux FallsSouth Dakota
    24
  581. 578Redwood CityCalifornia
    24
  582. 578San Luis ObispoCalifornia
    24
  583. 578Spring ValleyNevada
    24
  584. 578ReddingCalifornia
    24
  585. 578MoscowIdaho
    24
  586. 578Spanish ForkUtah
    24
  587. 578CentraliaWashington
    24
  588. 578ShorelineWashington
    24
  589. 589PleasantonCalifornia
    23
  590. 589San LeandroCalifornia
    23
  591. 589San RafaelCalifornia
    23
  592. 589BeavertonOregon
    23
  593. 589RedmondOregon
    23
  594. 589HerrimanUtah
    23
  595. 595DerryNew Hampshire
    23
  596. 595Las CrucesNew Mexico
    23
  597. 595Twin FallsIdaho
    23
  598. 595Salmon CreekWashington
    23
  599. 595Picnic Point-North LynnwoodWashington
    23
  600. 600Colorado SpringsColorado
    22
  601. 601Green ValleyArizona
    22
  602. 601Thousand OaksCalifornia
    22
  603. 601LubbockTexas
    22
  604. 601Cedar CityUtah
    22
  605. 601BremertonWashington
    22
  606. 606ShreveportLouisiana
    21
  607. 606PleasantvilleNew Jersey
    21
  608. 606GilletteWyoming
    21
  609. 609Idaho FallsIdaho
    21
  610. 609Coos BayOregon
    21
  611. 609Summerlin SouthNevada
    21
  612. 612OrcuttCalifornia
    20
  613. 612Windsorlow-cost sensorsCalifornia
    20
  614. 612CanbyOregon
    20
  615. 612McMinnvilleOregon
    20
  616. 616DallasOregon
    19
  617. 616AberdeenWashington
    19
  618. 618CoventryRhode Island
    19
  619. 618ParadiseCalifornia
    19
  620. 618Forest GroveOregon
    19
  621. 618Tri-CitiesWashington
    19
  622. 622HollisterCalifornia
    18
  623. 622HiloHawaii
    18
  624. 624PocatelloIdaho
    18
  625. 624Rock SpringsWyoming
    18
  626. 626FillmoreCalifornia
    17
  627. 626MesquiteNevada
    17
  628. 628LancasterCalifornia
    17
  629. 629ConcordCalifornia
    16
  630. 629HurricaneUtah
    16
  631. 631Boulder CityNevada
    16
  632. 631PullmanWashington
    16
  633. 633TruckeeCalifornia
    15
  634. 634RidgecrestCalifornia
    13
  635. 635CorvallisOregon
    13
  636. 635BellevueWashington
    13
  637. 637LaramieWyoming
    10
  638. 638Mount VernonWashington
    8
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). 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 2025 · United States now

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SmogRank, most polluted cities in United States, PM2.5, February 2025, smogrank.com/us/history/2025-02 (accessed 2 Oct 2026).

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