We don't have states. However, we have similar one, called 도(do). We have 경기도(Gyeonggi-do), 강원도(Gangwon-do), 충청북도(Chungcheongbuk-do), 충청남도(Chungcheongnam-do), 경상북도(Gyeongsangbuk-do), 경상남도(Gyeongsangnam-do), 전라북도(Jeollabuk-do), 전라남도(Jeollanam-do), 제주도(Jejudo)(제주도(Jejugo) is also the biggest island in Korea.)