Serious Population Changes in Local Municipalities This Year (January–August 2026)

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#Seoul
-Jan Population: 9,299,701
-Aug Population: 9,281,625
-Change: Decrease of 18,076
#Incheon
-Jan Population: 3,053,308
-Aug Population: 3,066,185
-Change: Increase of 12,877
#Gyeonggi
-Jan Population: 13,736,642
-Aug Population: 13,773,918
-Change: Increase of 37,276
#Gangwon
-Jan Population: 1,507,634
-Aug Population: 1,506,662
-Change: Decrease of 972
#Daejeon
-Jan Population: 1,440,550
-Aug Population: 1,442,838
-Change: Increase of 2,288
#Sejong
-Jan Population: 391,477
-Aug Population: 390,738
-Change: Decrease of 739
#Chungnam
-Jan Population: 2,136,204
-Aug Population: 2,138,938
-Change: Increase of 2,734
#Chungbuk
-Jan Population: 1,596,749
-Aug Population: 1,601,367
-Change: Increase of 4,618
#Gwangju/Jeonnam
-Jan Population: 3,168,829
-Aug Population: 3,155,803
-Change: Decrease of 13,026
#Jeonbuk
-Jan Population: 1,723,497
-Aug Population: 1,716,965
-Change: Decrease of 6,532
#Busan
-Jan Population: 3,239,711
-Aug Population: 3,229,467
-Change: Decrease of 10,244
#Daegu
-Jan Population: 2,352,249
-Aug Population: 2,346,277
-Change: Decrease of 5,972
#Ulsan
-Jan Population: 1,091,281
-Aug Population: 1,086,373
-Change: Decrease of 4,908
#Gyeongnam
-Jan Population: 3,205,787
-Aug Population: 3,191,645
-Change: Decrease of 14,142
#Gyeongbuk
-Jan Population: 2,503,544
-Aug Population: 2,492,677
-Change: Decrease of 10,867
#Jeju
-Jan Population: 663,995
-Aug Population: 662,681
-Change: Decrease of 1,314
※Notable Findings
-Among regional metropolitan cities, only Daejeon saw a population increase
-Among regional cities with over 500,000 people, only the "Chungcheong Big Three" (Daejeon, Cheongju, Cheonan) saw a population increase
-Hwaseong, Gyeonggi-do, surpassed 1 million residents
-Chungcheongbuk-do surpassed the 1.6 million mark
-Gyeongsangnam-do fell below the 3.2 million mark
-Gyeongsangbuk-do fell below the 2.5 million mark
Population is flocking explosively to the Seoul Metropolitan Area,
While Chungcheong-do is seeing overall growth, only the major cities along the Gyeongbu Line are on an upward trend,
Regions south of Daejeon are facing total depletion...
Map Source: Wikipedia
Data Source: Ministry of the Interior and Safety Resident Registration Population Statistics