Hwangyeong-ro 28beon-gil, Gyeongseo-dong, Seohae-gu postal codes (14)
On Hwangyeong-ro 28beon-gil in Gyeongseo-dong, Seohae-gu the postal code depends on the building number: numbers 34–45 use 22689, numbers 53–53-3 use 22690. Data as of August 2026.
| Address | Postal code | Building |
|---|---|---|
| Hwangyeong-ro 28beon-gil 34 | 22689 | 정일쇼링 |
| Hwangyeong-ro 28beon-gil 34-1 | 22689 | |
| Hwangyeong-ro 28beon-gil 34-2 | 22689 | |
| Hwangyeong-ro 28beon-gil 34-3 | 22689 | (주)팜클 |
| Hwangyeong-ro 28beon-gil 34-4 | 22689 | (주)현대방역 |
| Hwangyeong-ro 28beon-gil 34-5 | 22689 | 경서자동차, 효성화물 |
| Hwangyeong-ro 28beon-gil 34-6 | 22689 | 태경자원 |
| Hwangyeong-ro 28beon-gil 34-7 | 22689 | 신한자원(주) |
| Hwangyeong-ro 28beon-gil 42 | 22689 | 굴포천 방수로 2단계1공구 건설현장사무소 |
| Hwangyeong-ro 28beon-gil 45 | 22689 | (주)영림엔지니어링 |
| Hwangyeong-ro 28beon-gil 53 | 22690 | |
| Hwangyeong-ro 28beon-gil 53-1 | 22690 | |
| Hwangyeong-ro 28beon-gil 53-2 | 22690 | |
| Hwangyeong-ro 28beon-gil 53-3 | 22690 |