For town halls you have 1 places with "고금면사무소" for example. About police stations, 1 possibilities exist (like "완도경찰서 고금파출소").
In term of supermarkets you can find 3 location in the region (like "GS25 완도고금점", "농협하나로마트 고금지점").
Are you looking for an apartment for sale/rent? Or interested by a house? You can check that on Naver.
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