SmogRank / World / South Korea / July 2025

Most polluted cities in South Korea, July 2025

135 cities in South Korea ranked by their average PM2.5 over the 31 days. Worst: Gimpo-si at 17.6 µg/m³, #245 of 2,499 cities in the world. Cleanest: Gapyeong at 6.8. A city needs measurements on 70% of the days to be ranked.

← Gimpo-si 17.6 µg/m³ 20 µg/m³0
Every city in South Korea ranked for July 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. 1Gimpo-siGyeonggi-do
    30
  2. 2IncheonIncheon
    28
  3. 3Ganghwa-gunIncheon
    28
  4. 4TangjinChungcheongnam-do
    28
  5. 5SeonghwanChungcheongnam-do
    27
  6. 6EisenGyeongsangbuk-do
    27
  7. 6HwadoGyeonggi-do
    27
  8. 8Ansan-siGyeonggi-do
    25
  9. 9HayangGyeongsangbuk-do
    25
  10. 10YesanChungcheongnam-do
    25
  11. 11Hwaseong-siGyeonggi-do
    25
  12. 12JeongeupJeollabuk-do
    25
  13. 13GunsanJeollabuk-do
    23
  14. 13KimjeJeollabuk-do
    23
  15. 15BuanJeollabuk-do
    23
  16. 16PyeongtaekGyeonggi-do
    23
  17. 16Icheon-siGyeonggi-do
    23
  18. 18UlsanUlsan
    23
  19. 18GoseongGyeongsangnam-do
    23
  20. 18HongseongChungcheongnam-do
    23
  21. 21AsanChungcheongnam-do
    23
  22. 22GumiGyeongsangbuk-do
    23
  23. 22HanamGyeonggi-do
    23
  24. 24SantyokuGangwon-do
    23
  25. 25Donghae CityGangwon-do
    23
  26. 26WŏnjuGangwon-do
    22
  27. 26OsanGyeonggi-do
    22
  28. 28SuwonGyeonggi-do
    22
  29. 28Guri-siGyeonggi-do
    22
  30. 28JangheungJeollanam-do
    22
  31. 28ChangnyeongGyeongsangnam-do
    22
  32. 32IksanJeollabuk-do
    22
  33. 32HwawŏnDaegu
    22
  34. 34BoryeongChungcheongnam-do
    22
  35. 34SeoulSeoul
    22
  36. 34Bucheon-siGyeonggi-do
    22
  37. 34SinhyeonGyeongsangnam-do
    22
  38. 34SejongSejong-si
    22
  39. 39YeonggwangJeollanam-do
    22
  40. 39MiryangGyeongsangnam-do
    22
  41. 39Goyang-siGyeonggi-do
    22
  42. 42SeosanChungcheongnam-do
    22
  43. 43Uijeongbu-siGyeonggi-do
    22
  44. 43BuyeoChungcheongnam-do
    22
  45. 45GwangmyeongGyeonggi-do
    22
  46. 46WanjuJeollabuk-do
    22
  47. 46Chinch'ŏnNorth Chungcheong
    22
  48. 46ChangwonGyeongsangnam-do
    22
  49. 49NonsanChungcheongnam-do
    20
  50. 50CheorwonGangwon-do
    20
  51. 50CheonanChungcheongnam-do
    20
  52. 52Taesal-liChungcheongnam-do
    20
  53. 52YŏnmuChungcheongnam-do
    20
  54. 54WaegwanGyeongsangbuk-do
    20
  55. 54NajuJeollanam-do
    20
  56. 56YecheonGyeongsangbuk-do
    20
  57. 56GwangyangJeollanam-do
    20
  58. 56NaesŏGyeongsangnam-do
    20
  59. 59BusanBusan
    20
  60. 59JungpyongNorth Chungcheong
    20
  61. 59YeongamJeollanam-do
    20
  62. 62MokpoJeollanam-do
    20
  63. 62GwangjuGyeonggi-do
    20
  64. 62ChinjuGyeongsangnam-do
    20
  65. 65YangsanGyeongsangnam-do
    20
  66. 65PohangGyeongsangbuk-do
    20
  67. 65NangenJeollabuk-do
    20
  68. 65Anyang-siGyeonggi-do
    20
  69. 69ChangsuJeollabuk-do
    20
  70. 69NamyangjuGyeonggi-do
    20
  71. 71DaeguDaegu
    18
  72. 71SinanJeollanam-do
    18
  73. 71HadongGyeongsangnam-do
    18
  74. 74HwasunJeollanam-do
    18
  75. 74UngsangGyeongsangnam-do
    18
  76. 76KwangyangJeollanam-do
    18
  77. 76KinzanChungcheongnam-do
    18
  78. 76Jeju CityJeju-do
    18
  79. 79YeongdongNorth Chungcheong
    18
  80. 79SokchoGangwon-do
    18
  81. 79Seongnam-siGyeonggi-do
    18
  82. 82BeolgyoJeollanam-do
    18
  83. 82NamsaJeollabuk-do
    18
  84. 82MasanGwangju
    18
  85. 82BoseongJeollanam-do
    18
  86. 86TongyeongGyeongsangnam-do
    18
  87. 86JeonjuJeollabuk-do
    18
  88. 86YeosuJeollanam-do
    18
  89. 89YeonilGyeongsangbuk-do
    18
  90. 89Yangp'yŏngGyeonggi-do
    18
  91. 89GijangBusan
    18
  92. 89Cheongju-siNorth Chungcheong
    18
  93. 93MunsanGyeonggi-do
    18
  94. 94GimcheonGyeongsangbuk-do
    18
  95. 95DaejeonDaejeon
    18
  96. 95Gyeongsan-siGyeongsangbuk-do
    18
  97. 95SeogwipoJeju-do
    18
  98. 98YeojuGyeonggi-do
    17
  99. 98KoesanNorth Chungcheong
    17
  100. 98ChungjuNorth Chungcheong
    17
  101. 101MuanJeollanam-do
    17
  102. 101ImsilJeollabuk-do
    17
  103. 101GaigeturiJeju-do
    17
  104. 104YeongjuGyeongsangbuk-do
    17
  105. 104GongjuChungcheongnam-do
    17
  106. 104Hongch’ŏnGangwon-do
    17
  107. 104PubalGyeonggi-do
    17
  108. 108SuncheonJeollanam-do
    17
  109. 108JangseongJeollanam-do
    17
  110. 110SangjuGyeongsangbuk-do
    17
  111. 110GeojeGyeongsangnam-do
    17
  112. 112Koch'angJeollabuk-do
    17
  113. 113OkcheonNorth Chungcheong
    17
  114. 113GwangjuGwangju
    17
  115. 113KimhaeGyeongsangnam-do
    17
  116. 116Cheongsong gunGyeongsangbuk-do
    15
  117. 116Jinan-gunJeollabuk-do
    15
  118. 116AnseongGyeonggi-do
    15
  119. 119NeietsuGangwon-do
    15
  120. 119DamyangJeollanam-do
    15
  121. 121GyeongjuGyeongsangbuk-do
    15
  122. 121GangneungGangwon-do
    15
  123. 123KuryeJeollanam-do
    15
  124. 123HaenamJeollanam-do
    15
  125. 125KunwiGyeongsangbuk-do
    15
  126. 126MungyeongGyeongsangbuk-do
    15
  127. 127YangjuGyeonggi-do
    13
  128. 128AndongGyeongsangbuk-do
    13
  129. 129YangguGangwon-do
    13
  130. 130ChuncheonGangwon-do
    13
  131. 131JumunjinGangwon-do
    13
  132. 132HwacheonGangwon-do
    12
  133. 133KosongGangwon-do
    12
  134. 134WabuGyeonggi-do
    12
  135. 135GapyeongGyeonggi-do
    12
Good0–50
Satisfactory51–100
Moderate101–200
Poor201–300
Very poor301–400
Severe401+

India's National Air Quality Index (CPCB), PM2.5 sub-index. 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, July 2025 · South Korea now

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SmogRank, most polluted cities in South Korea, PM2.5, July 2025, smogrank.com/kr/history/2025-07 (accessed 2 Oct 2026).

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