# National Route 21 (South Korea)

National Route 21 is a national highway in South Korea connects Namwon to Icheon. It established on 31 August 1971.

## Main stopovers

North Jeolla Province
* Namwon - Sunchang County - Jeongeup - Gimje - Jeonju - Wanju County - Jeonju - Iksan - Gimje - Iksan - Gunsan
South Chungcheong Province
* Seocheon County - Boryeong - Hongseong County - Yesan County - Asan - Cheonan
North Chungcheong Province
* Jincheon County - Eumseong County
Gyeonggi Province
* Icheon

## Major intersections

* (■): Motorway
IS: Intersection, IC: Interchange

### North Jeolla Province

| Name | Hangul name | Connection | Location | Location | Note |
| Daegang-myeon Office | 대강면사무소 | | Namwon City | Daegang-myeon | Terminus National Route 13 overlap |
| No name | (이름 없음) | Prefectural Route 745 (Geumtan-ro) | Namwon City | Daegang-myeon | National Route 13 overlap |
| Pyeongchon IS | 평촌삼거리 | Prefectural Route 730 (Yudeung-ro) | Namwon City | Daegang-myeon | National Route 13 overlap |
| Suhong IS | 수홍삼거리 | National Route 24 (Bihong-ro) | Namwon City | Daegang-myeon | National Route 13, National Route 24 overlap |
| Goejeong IS | 괴정삼거리 | National Route 24 (Damsun-ro) | Sunchang County | Jeokseong-myeon | National Route 13, National Route 24 overlap |
| Seoho Bridge (Seohyo Bridge) | 서호다리(서효교) | | Sunchang County | Jeokseong-myeon | National Route 13 overlap |
| Hyeonpo IS | 현포삼거리 | Donggye-ro | Sunchang County | Donggye-myeon | National Route 13 overlap |
| Yeonsan IS | 연산사거리 | National Route 13 (Chunghyo-ro) Donggye 1-gil | Sunchang County | Donggye-myeon | National Route 13 overlap Prefectural Route 717 overlap |
| Donggye High School | 동계고등학교 | | Sunchang County | Donggye-myeon | Prefectural Route 717 overlap |
| Gwanjeon IS | 관전삼거리 | Prefectural Route 717 (Gangdong-ro) | Sunchang County | Donggye-myeon | Prefectural Route 717 overlap |
| No name | (이름 없음) | Ganggyeong-gil | Sunchang County | Jeokseong-myeon | |
| Naewol IS | 내월삼거리 | Jeokseong-ro | Sunchang County | Jeokseong-myeon | |
| Unrim IS | 운림삼거리 | Inseong-ro | Sunchang County | Jeokseong-myeon | |
| No name | (이름 없음) | Sesim-ro | Sunchang County | Ingye-myeon | |
| No name | (이름 없음) | Injung-ro | Sunchang County | Ingye-myeon | |
| Ingye Elementary School | 인계초등학교 | | Sunchang County | Ingye-myeon | |
| No name No name | (이름 없음) (이름 없음) | Hogye-gil Seonam-ro | Sunchang County | Ingye-myeon | |
| Ingye IS | 인계교차로 | National Route 27 (Moak-ro) | Sunchang County | Ingye-myeon | |
| Ingye IS (Ingye-myeon Office) | 인계삼거리 (인계면사무소) | Indeok-ro | Sunchang County | Ingye-myeon | |
| No name | (이름 없음) | Indeok-ro | Sunchang County | Ingye-myeon | |
| No name No name | (이름 없음) (이름 없음) | Gusan-ro Hoeryong-gil | Sunchang County | Gurim-myeon | |
| Dungi IS | 둔기삼거리 | Prefectural Route 729 (Gwangam-ro) | Sunchang County | Gurim-myeon | Prefectural Route 729 overlap |
| No name | (이름 없음) | Seonggok-ro | Sunchang County | Gurim-myeon | Prefectural Route 729 overlap |
| Gurim Bridge IS | 구림교삼거리 | Prefectural Route 729 (Yeonsan 2-gil) | Sunchang County | Gurim-myeon | Prefectural Route 729 overlap |
| Gurim IS | 구림삼거리 | Gurim-ro | Sunchang County | Gurim-myeon | |
| Woljeong IS | 월정삼거리 | Prefectural Route 55 Prefectural Route 792 (Gangcheon-ro) | Sunchang County | Gurim-myeon | Prefectural Route 55, 792 overlap |
| Ojeongja IS | 오정자삼거리 | Prefectural Route 792 (Gangcheon-ro) | Sunchang County | Gurim-myeon | Prefectural Route 55, 792 overlap |
| Unbuk IS | 운북삼거리 | Jangam-gil | Sunchang County | Gurim-myeon | Prefectural Route 55 overlap |
| No name | (이름 없음) | Unhang-gil | Sunchang County | Gurim-myeon | Prefectural Route 55 overlap |
| Bamjae | 밤재 | | Sunchang County | Gurim-myeon | Prefectural Route 55 overlap |
| Bamjae | | | Sunchang County | Ssangchi-myeon | Prefectural Route 55 overlap |
| Ssangchi IS | 쌍치사거리 | Prefectural Route 55 Prefectural Route 715 (Cheongjeong-ro) Ssanggye-ro | Sunchang County | Ssangchi-myeon | Prefectural Route 55 overlap |
| Ssangchi Middle School | 쌍치중학교 | | Sunchang County | Ssangchi-myeon | |
| Ssanggalmae IS | 쌍갈매삼거리 | National Route 29 (Sunjeong-ro) | Sunchang County | Ssangchi-myeon | National Route 29 overlap |
| Oksan IS | 옥산삼거리 | Guksabong-ro | Sunchang County | Ssangchi-myeon | National Route 29 overlap |
| Hunmonhjae Entrance | 훈몽재입구 | | Sunchang County | Ssangchi-myeon | National Route 29 overlap |
| Sinseong IS | 신성교차로 | Prefectural Route 49 (Baekbang-ro) | Sunchang County | Ssangchi-myeon | National Route 29 overlap Prefectural Route 49 overlap |
| Gaeunchi | 개운치 | | Jeongeup City | Naejangsang-dong | National Route 29 overlap Prefectural Route 49 overlap |
| Bujeonjae IS | 부전제삼거리 | Prefectural Route 49 (Chilbosan-ro) | Jeongeup City | Naejangsang-dong | National Route 29 overlap Prefectural Route 49 overlap |
| Bujeon IS | 부전사거리 | Naejangsan-ro | Jeongeup City | Naejangsang-dong | National Route 29 overlap |
| Naejangsang-dong Community Center | 내장상동주민센터 | | Jeongeup City | Naejangsang-dong | National Route 29 overlap |
| Songsan IS | 송산교차로 | National Route 1 (Jeongeup-daero) National Route 29 (Naejangsan-ro) | Jeongeup City | Naejangsang-dong | National Route 1 overlap National Route 29 overlap |
| Yongho Tunnel | 용호터널 | | Jeongeup City | Jangmyeong-dong | National Route 1 overlap Right tunnel: Approximately 285m Left tunnel: Approximately 250m |
| Yongho IS | 용호교차로 | Prefectural Route 708 (Jeongeupbuk-ro) | Jeongeup City | Jangmyeong-dong | National Route 1 overlap Prefectural Route 708 overlap |
| Bakdong IS | 박동교차로 | Seobusaneopdo-ro | Jeongeup City | Buk-myeon | National Route 1 overlap Prefectural Route 708 overlap |
| Jeongeup Bridge | 정읍대교 | | Jeongeup City | Buk-myeon | National Route 1 overlap Prefectural Route 708 overlap |
| Hwahae IS | 화해교차로 | Prefectural Route 708 (Chilbuk-ro) | Jeongeup City | Buk-myeon | National Route 1 overlap Prefectural Route 708 overlap |
| Usan IS | 우산교차로 | Jeongeupbuk-ro | Jeongeup City | Jeongu-myeon | National Route 1 overlap |
| Jigyeong IS | 지경교차로 | Taego-ro | Jeongeup City | Jeongu-myeon | National Route 1 overlap |
| Taein IS | 태인교차로 | Seokji-ro | Jeongeup City | Taein-myeon | National Route 1 overlap Connected with Taein IC |
| Wangnim IS | 왕림교차로 | National Route 30 | Jeongeup City | Taein-myeon | National Route 1 overlap |
| Oseong IS | 오성교차로 | Jeongeupbuk-ro | Jeongeup City | Taein-myeon | National Route 1 overlap |
| Nokdong IS | 녹동교차로 | Jeongeupbuk-ro | Jeongeup City | Ongdong-myeon | National Route 1 overlap |
| Yongho IS | 용호교차로 | Jeongeupbuk-ro | Jeongeup City | Ongdong-myeon | National Route 1 overlap |
| Solteun Tunnel | 솔튼터널 | | Jeongeup City | Ongdong-myeon | National Route 1 overlap Right tunnel: Approximately 780m Left tunnel: Approximately 700m |
| Tongseok IS | 통석교차로 | Geumpyeong-ro Jeongeupbuk-ro | Jeongeup City | Gamgok-myeon | National Route 1 overlap |
| Wonpyeong IS | 원평 교차로 | Prefectural Route 714 Prefectural Route 736 (Bonghwang-ro) | Gimje City | Geumsan-myeon | National Route 1 overlap |
| Naksu IS | 낙수교차로 | Prefectural Route 712 (Bongnam-ro) (Wonpyeong-ro) | Gimje City | Geumsan-myeon | National Route 1 overlap |
| Bongeun IS | 봉은교차로 | Guseong-gil | Gimje City | Geumsan-myeon | National Route 1 overlap |
| Yongbok IS | 용복교차로 | Yangsi-ro | Gimje City | Geumgu-myeon | National Route 1 overlap |
| Geumgu IS | 금구사거리 | Daesong-ro | Gimje City | Geumgu-myeon | National Route 1 overlap |
| Geumgu IC | 금구 나들목 | Prefectural Route 714 (Pungyo-ro) | Gimje City | Geumgu-myeon | National Route 1 overlap Connected with Gimje IC |
| Woljeon IS | 월전삼거리 | Bongdu-ro | Gimje City | Geumgu-myeon | National Route 1 overlap |
| Daeya IS | 대야삼거리 | Prefectural Route 713 (Iseonam-ro) | Gimje City | Geumgu-myeon | National Route 1 overlap |
| Ssuk Pass IS | 쑥고개 교차로 | National Route 1 National Route 27 (Honam-ro) Ssukgogae-ro | Jeonju City | Wansan District | National Route 1 overlap National Route 27 overlap |
| Jungin IS | 중인 교차로 | Prefectural Route 712 (Urim-ro) | Jeonju City | Wansan District | National Route 27 overlap |
| Gui IS | 구이 교차로 | National Route 27 (Moak-ro) | Jeonju City | Wansan District | National Route 27 overlap |
| Taebong IS | 태봉 교차로 | Pyeongchon-ro | Wanju County | Gui-myeon | |
| Gwanggok Tunnel | 광곡터널 | | Wanju County | Gui-myeon | Approximately 380m |
| Godeok Tunnel | 고덕터널 | | Wanju County | Gui-myeon | Right tunnel: Approximately 920m Left tunnel: Approximately 870m |
| Sanggwan IS | 상관 교차로 | National Route 17 (Chunhyang-ro) | Wanju County | Sanggwan-myeon | National Route 17 overlap |
| No name | (이름 없음) | Sinri-ro | Wanju County | Sanggwan-myeon | National Route 17 overlap |
| No name | (이름 없음) | Chunhyang-ro | Wanju County | Sanggwan-myeon | National Route 17 overlap |
| Ajung Station Square | 아중역광장 | Ajung-ro | Jeonju City | Deokjin District | National Route 17 overlap |
| Andeokwon IS (Andeokwon Underpass) | 안덕원사거리 (안덕원지하차도) | National Route 26 (Andeokwon-ro) | Jeonju City | Deokjin District | National Route 17, National Route 26 overlap |
| Station Square (Jeonju Station) | 역전광장 (전주역) | Baekje-daero | Jeonju City | Deokjin District | National Route 17, National Route 26 overlap |
| Hoseong-dong Community Center | 호성동주민센터 | | Jeonju City | Deokjin District | National Route 17, National Route 26 overlap |
| Vehicle Registration Office | 차량등록사업소앞 | National Route 17 (Wanju-ro) | Jeonju City | Deokjin District | National Route 17, National Route 26 overlap |
| Songcheon Station IS | 송천역네거리 | Songcheonjungang-ro | Jeonju City | Deokjin District | National Route 26 overlap |
| Jeonju City Agricultural and Marine Products Market | 전주시농수산물시장 | | Jeonju City | Deokjin District | National Route 26 overlap |
| Baldan-ri IS | 발단리네거리 | Sicheon-ro Jeonmi-ro | Jeonju City | Deokjin District | National Route 26 overlap |
| Jeonjucheon Bridge | 전주천교 | | Jeonju City | Deokjin District | National Route 26 overlap |
| Dongsan Station IS | 동산역네거리 | Pyeonun-ro | Jeonju City | Deokjin District | National Route 26 overlap |
| Dongsan Square IS | 동산광장교차로 | Banwol-ro Samnye-ro Hyeoksin-ro | Jeonju City | Deokjin District | National Route 26 overlap |
| Jeonju IC (Banwol IS) | 전주 나들목 (반월교차로) | Honam Expressway | Jeonju City | Deokjin District | National Route 26 overlap |
| Jochon IS | 조촌교차로 | Girin-daero Ongoeul-ro Jjokgureum-ro | Jeonju City | Deokjin District | National Route 26 overlap |
| Daeheung IS | 대흥 교차로 | National Route 1 National Route 27 (Honam-ro) National Route 26 (Beonyeong-ro) | Jeonju City | Deokjin District | National Route 26 overlap |
| Dodo IS | 도도 교차로 | Saemangeumbuk-ro | Jeonju City | Deokjin District | |
| Hakdong IS | 학동 교차로 | National Route 26 (Beonyeong-ro) | Gimje City | Baekgu-myeon | |
| Gongdeok IS | 공덕 교차로 | National Route 23 (Hagong-ro) | Gimje City | Gongdeok-myeon | |
| Gongdeok Bridge | 공덕대교 | | Gimje City | Gongdeok-myeon | |
| East Gunsan IC (Daeya IS) | 동군산 나들목 (대야교차로) | Seohaean Expressway National Route 29 (Geumman-ro) | Gunsan City | Daeya-myeon | National Route 29 overlap |
| Gaejeong IS | 개정 교차로 | National Route 29 (Geumgang-ro) | Gunsan City | Gaejeong-myeon | National Route 29 overlap |
| Oksan IS | 옥산 교차로 | Prefectural Route 709 (Oksan-ro) | Gunsan City | Oksan-myeon | |
| Dangbuk IS | 당북 교차로 | Wolmyeong-ro | Gunsan City | Oksan-myeon | |
| Kunsan National University IS | 군산대 교차로 | Daehak-ro | Gunsan City | Naun-dong | |
| Airport IS | 공항 교차로 | National Route 26 (Gonghang-ro) | Gunsan City | Miseong-dong | |
| Oknyeo IS | 옥녀 교차로 | Oknyeo-ro | Gunsan City | Miseong-dong | |
| Maeripjang IS | 매립장삼거리 | | Gunsan City | Miseong-dong | |
| Naecho IS | 내초사거리 | Naecho-ro | Gunsan City | Miseong-dong | |
| Expo IS | 엑스포사거리 | National Route 4 National Route 77 (Saemangeumbuk-ro) | Gunsan City | Miseong-dong | National Route 4, National Route 77 overlap |
| Electrical Substation IS | 변전소사거리 | Dongjangsan-ro Oehang-ro | Gunsan City | Soryong-dong | National Route 4, National Route 77 overlap |
| Daeu IS | 대우삼거리 | Jangsan-ro | Gunsan City | Soryong-dong | National Route 4, National Route 77 overlap |
| Passenger Terminal IS | 여객터미널삼거리 | Imhae-ro | Gunsan City | Soryong-dong | National Route 4, National Route 77 overlap |
| Gongdan IS | 공단삼거리 | Gongdandae-ro | Gunsan City | Soryong-dong | National Route 4, National Route 77 overlap |
| Oego IS | 외고삼거리 | National Route 26 (Gonghang-ro) | Gunsan City | Soryong-dong | National Route 4, National Route 26, National Route 77 overlap |
| Wolmyeong Tunnel IS | 월명터널삼거리 | Wolmyeong-ro | Gunsan City | Haesin-dong | National Route 4, National Route 26, National Route 77 overlap |
| Doseonjang IS | 도선장사거리 | Gunsanchang-gil | Gunsan City | Wolmyeong-dong | National Route 26 overlap |
| Naehang IS | 내항사거리 | National Route 26 National Route 27 (Daehak-ro) | Gunsan City | Wolmyeong-dong | National Route 26, National Route 27 overlap |
| Gyeonguhoeap | 경우회앞 | Jukseong-ro | Gunsan City | Jungang-dong | National Route 27 overlap |
| Gyeongam IS | 경암사거리 | National Route 26 (Haemang-ro) | Gunsan City | Gyeongam-dong | National Route 27 overlap |
| Jinpo IS | 진포사거리 | Jinpo-ro | Gunsan City | Gyeongam-dong | National Route 27 overlap |
| Yeonan IS | 연안사거리 | Jochon-ro | Gunsan City | Gyeongam-dong | National Route 27 overlap |
| Guam Bridge IS | 구암교삼거리 | Guam 3.1-ro | Gunsan City | Guam-dong | National Route 27 overlap |
| Jamdu IS | 잠두삼거리 | Baekreung-ro | Gunsan City | Guam-dong | National Route 27 overlap |
| Guam IS | 구암삼거리 | Guam 3.1-ro | Gunsan City | Guam-dong | National Route 27 overlap |
| Hodeok IS | 호덕교차로 | National Route 27 (Guam-ro) National Route 29 (Geumgang-ro) | Gunsan City | Gaejeong-myeon | National Route 27 overlap National Route 29 overlap |
| Gunsan Station IS | 군산역교차로 | Anjeong-gil Haeryeong 1-gil | Gunsan City | Guam-dong | National Route 29 overlap Continuation into South Chungcheong Province |
| Haguduk IS (Seongsan Overpass) | 하구둑사거리 (성산육교) | Prefectural Route 709 (Cheolsae-ro) Gangbyeon-ro | Gunsan City | Seongsan-myeon | National Route 29 overlap Continuation into South Chungcheong Province |
| Geumgang Riverwall | 금강하구둑 | | Gunsan City | Seongsan-myeon | National Route 29 overlap Continuation into South Chungcheong Province |

### South Chungcheong Province

| Name | Hangul name | Connection | Location | Location | Note |
| Geumgang Riverwall | 금강하구둑 | | Seocheon County | Maseo-myeon | National Route 29 overlap North Jeolla Province - South Chungcheong Province border line |
| Haguduk IS | 하구둑사거리 | National Route 29 Prefectural Route 68 (Jangsan-ro) | Seocheon County | Maseo-myeon | National Route 29 overlap North Jeolla Province - South Chungcheong Province border line |
| Songnae IS | 송내 교차로 | National Route 4 National Route 77 (Daebaekje-ro) | Seocheon County | Maseo-myeon | National Route 4, National Route 77 overlap |
| Janghang Station IS | 장항역사거리 | Janghang Station-gil Janghangsandan-ro | Seocheon County | Maseo-myeon | National Route 4, National Route 77 overlap |
| Deokam IS | 덕암교차로 | Okdo-ro | Seocheon County | Maseo-myeon | National Route 4, National Route 77 overlap |
| Samsan IS | 삼산교차로 | Samsan-gil | Seocheon County | Seocheon-eup | National Route 4, National Route 77 overlap |
| Gunsa 2 IS | 군사2교차로 | Jangseo-ro | Seocheon County | Seocheon-eup | National Route 4, National Route 77 overlap |
| Gunsa IS | 군사교차로 | Chungjeol-ro | Seocheon County | Seocheon-eup | National Route 4, National Route 77 overlap |
| No name | (이름 없음) | Sagok-ro | Seocheon County | Seocheon-eup | National Route 4, National Route 77 overlap |
| Oseok IS | 오석사거리 | National Route 4 (Daebaekje-ro) | Seocheon County | Seocheon-eup | National Route 4, National Route 77 overlap |
| Dangjeong IS | 당정사거리 | Prefectural Route 617 (Jangcheol-ro) Chungseo-ro 302beon-gil | Seocheon County | Jongcheon-myeon | National Route 77 overlap Prefectural Route 617 overlap |
| Jongcheon IS | 종천삼거리 | Prefectural Route 617 (Jongpan-ro) | Seocheon County | Jongcheon-myeon | National Route 77 overlap Prefectural Route 617 overlap |
| Gwanri IS | 관리삼거리 | Biin-ro | Seocheon County | Biin-myeon | National Route 77 overlap |
| No name | (이름 없음) | Seondo-gil | Seocheon County | Biin-myeon | National Route 77 overlap |
| Seongnae IS | 성내사거리 | Prefectural Route 607 (Seoin-ro) Biin-ro | Seocheon County | Biin-myeon | National Route 77 overlap |
| Chunjangdae IC | 춘장대 나들목 | Seohaean Expressway | Seocheon County | Biin-myeon | National Route 77 overlap |
| Singu IS | 신구삼거리 | Singuyugok-ro | Seocheon County | Biin-myeon | National Route 77 overlap |
| Yaryong IS | 야룡삼거리 | Manseundong-gil | Boryeong City | Jusan-myeon | National Route 77 overlap |
| Jusan-myeon Office | 주산면사무소 | | Boryeong City | Jusan-myeon | National Route 77 overlap |
| Geumam IS Jusan Elementary School | 금암삼거리 주산초등학교 | Jusanbeotkkot-ro | Boryeong City | Jusan-myeon | National Route 77 overlap |
| Industrial Complex IS | 산업단지교차로 | Boryeongjusan Industrial Complex | Boryeong City | Jusan-myeon | National Route 77 overlap |
| Daechang IS | 대창사거리 | Doksan-ro Jangteo 6-gil | Boryeong City | Ungcheon-eup | National Route 77 overlap |
| Daechang Bridge | 대창교 | | Boryeong City | Ungcheon-eup | National Route 77 overlap |
| Ungcheon Bridge IS | 웅천교삼거리 | Jangteojungang-gil | Boryeong City | Ungcheon-eup | National Route 77 overlap |
| Daecheon-ri IS | 대천리삼거리 | Prefectural Route 606 (Mansu-ro) | Boryeong City | Ungcheon-eup | National Route 77 overlap Prefectural Route 606 overlap |
| Muchangpo IS | 무창포삼거리 | Prefectural Route 606 (Muchangpo-ro) | Boryeong City | Ungcheon-eup | National Route 77 overlap Prefectural Route 606 overlap |
| Eupnae IS | 읍내삼거리 | Woljeon-ro | Boryeong City | Nampo-myeon | National Route 77 overlap |
| Nampo IS | 남포삼거리 | Boryeongnam-ro | Boryeong City | Nampo-myeon | National Route 77 overlap |
| Nampo IS | 남포 교차로 | (Connection road are under construction) | Boryeong City | Nampo-myeon | National Route 77 overlap |
| Myeongcheon IS | 명천 교차로 | National Route 40 (Seongjusan-ro) | Boryeong City | Daecheon-dong | National Route 40, National Route 77 overlap |
| Hwasan IS | 화산 교차로 | National Route 36 National Route 77 (Daecheon-ro) | Boryeong City | Daecheon-dong | National Route 40, National Route 77 overlap |
| Bonghwang Tunnel | 봉황터널 | | Boryeong City | Daecheon-dong | National Route 40 overlap Approximately 1120m |
| Gwanchang IS | 관창 교차로 | Boryeongbuk-ro | Boryeong City | Jugyo-myeon | National Route 40 overlap |
| Jugyo IS | 주교사거리 | Prefectural Route 610 (Ulgyekeun-gil) | Boryeong City | Jupo-myeon | National Route 40 overlap Prefectural Route 610 overlap |
| Chungseo-ro IS | 충서로사거리 | Chungseo-ro | Boryeong City | Jupo-myeon | National Route 40 overlap Prefectural Route 610 overlap |
| Gwansan IS | 관산사거리 | Jupoyeok-gil | Boryeong City | Jupo-myeon | National Route 40 overlap Prefectural Route 610 overlap |
| Bongdang IS | 봉당삼거리 | Wondang-gil | Boryeong City | Jupo-myeon | National Route 40 overlap Prefectural Route 610 overlap |
| Jupo IS | 주포사거리 | National Route 40 (Chungcheongsuyeong-ro) Boryeongeupseong-gil | Boryeong City | Jupo-myeon | National Route 40 overlap Prefectural Route 610 overlap |
| Magang IS | 마강삼거리 | Bakgangsul-gil | Boryeong City | Jupo-myeon | Prefectural Route 610 overlap |
| Tongnam IS | 통남삼거리 | Yahyeonjeongjeon-gil | Boryeong City | Cheongso-myeon | Prefectural Route 610 overlap |
| Cheongso IS | 청소교차로 | Prefectural Route 610 (Cheongsokeun-gil) | Boryeong City | Cheongso-myeon | Prefectural Route 610 overlap |
| Jinjuk IS | 진죽사거리 | Cheongsokeun-gil | Boryeong City | Cheongso-myeon | |
| Jaecheong IS | 재정삼거리 | Gimjwajin-ro | Boryeong City | Cheongso-myeon | |
| Madong IS | 마동삼거리 | Madong 3-gil | Boryeong City | Cheongso-myeon | |
| Jukrim IS | 죽림교차로 | Gwangcheon-ro | Boryeong City | Cheongso-myeon | |
| Yongam IS | 옹암교차로 | Gwangcheon-ro | Hongseong County | Gwangcheon-eup | |
| Danarae IS | 단아래사거리 | Prefectural Route 96 (Hongnam-ro) | Hongseong County | Gwangcheon-eup | |
| Sinjin IS | 신진삼거리 | Gwangcheon-ro | Hongseong County | Gwangcheon-eup | |
| Hongju Passenger Corp. | 홍주여객 | | Hongseong County | Gwangcheon-eup | |
| Jijeong IS | 지정삼거리 | Geobuk-ro | Hongseong County | Guhang-myeon | |
| Industrial Complex IS | 산업단지삼거리 | Chungseo-ro966beon-gil | Hongseong County | Guhang-myeon | |
| Maon IS | 마온교차로 | National Route 29 (Nambusunhwan-ro) Chungseo-ro | Hongseong County | Hongseong-eup | National Route 29 overlap |
| Hakgye IS | 학계교차로 | Daehak-gil | Hongseong County | Hongseong-eup | National Route 29 overlap |
| Yeongam IS | 영암교차로 | Prefectural Route 609 (Hongjangbuk-ro) | Hongseong County | Hongseong-eup | National Route 29 overlap |
| Goam IS | 고암교차로 | National Route 29 (Chungjeol-ro) | Hongseong County | Hongseong-eup | National Route 29 overlap |
| Jangseong IS | 장성교차로 | Chungseo-ro | Hongseong County | Geumma-myeon | |
| Singok IS | 신곡사거리 | Chungseo-ro910beon-gil | Hongseong County | Geumma-myeon | |
| Baeyang IS | 배양삼거리 | Prefectural Route 616 (Geumma-ro) | Hongseong County | Geumma-myeon | |
| Hwayang IS | 화양삼거리 | Geumbuk-ro | Hongseong County | Geumma-myeon | |
| Bupyeong IS | 부평사거리 | Gwanggeumbuk-ro | Hongseong County | Geumma-myeon | |
| Daegyo IS | 대교교차로 | Bongsusan-ro | Hongseong County | Geumma-myeon | |
| No name | (이름 없음) | Maejukheon-gil | Hongseong County | Hongbuk-myeon | |
| No name | (이름 없음) | Eungbong-ro | Yesan County | Eungbong-myeon | |
| Eungbong IS | 응봉사거리 | Prefectural Route 619 (Yedang-ro) | Yesan County | Eungbong-myeon | |
| (No name IS) | (교차로 이름 미상) | Prefectural Route 602 (Chungnam-daero) | Yesan County | Eungbong-myeon | |
| Yesan-Sudeoksa IC | 예산수덕사 나들목 | Dangjin-Yeongdeok Expressway | Yesan County | Oga-myeon | |
| Driver's License Examination Office IS | 면허시험장사거리 | Guksabong-ro Osin-ro | Yesan County | Oga-myeon | |
| Oga IS | 오가사거리 | Sinjangwonpyeong-gil Ogajungang-ro | Yesan County | Oga-myeon | |
| Yesan Bridge | 예산대교 | | Yesan County | Yesan-eup | |
| Muhan IS | 무한교차로 | National Route 32 Prefectural Route 70 Prefectural Route 618 (Chadong-ro) Yesan-ro | Yesan County | Yesan-eup | National Route 32 overlap Prefectural Route 70, 618 overlap |
| Yesan Underpass | 예산지하차도 | Geumo-daero | Yesan County | Yesan-eup | National Route 32 overlap Prefectural Route 70, 618 overlap |
| Balyeon IS | 발연 교차로 | Prefectural Route 618 (Hwanggeumtteul-ro) | Yesan County | Yesan-eup | National Route 32 overlap Prefectural Route 70, 618 overlap |
| Seokyang IS | 석양교차로 | National Route 45 Prefectural Route 70 (Yunbonggil-ro) | Yesan County | Yesan-eup | National Route 32, National Route 45 overlap Prefectural Route 70 overlap |
| Gwanjak IS | 관작삼거리 | Sillyewon-ro | Yesan County | Yesan-eup | National Route 32, National Route 45 overlap |
| Changso IS | 창소사거리 | Changmal-ro Chusa-ro | Yesan County | Yesan-eup | National Route 32, National Route 45 overlap |
| Jeomchon IS | 점촌삼거리 | Sillyewon-ro | Yesan County | Yesan-eup | National Route 32, National Route 45 overlap |
| Ganyang IS | 간양교차로 | National Route 32 (Yedangpyeongya-ro) | Yesan County | Yesan-eup | National Route 32, National Route 45 overlap |
| Geumsan-ri IS | 금산리교차로 | Prefectural Route 645 (Asanman-ro) | Asan City | Dogo-myeon | National Route 45 overlap Prefectural Route 645 overlap |
| Geumsan IS | 금산삼거리 | Oncheon-daero207beon-gil | Asan City | Dogo-myeon | National Route 45 overlap Prefectural Route 645 overlap |
| Sijeon IS | 시전사거리 | Prefectural Route 645 (Dogosan-ro) | Asan City | Dogo-myeon | National Route 45 overlap Prefectural Route 645 overlap |
| Dogooncheon Station | 도고온천역 | | Asan City | Dogo-myeon | National Route 45 overlap |
| Hyangsan IS | 향산사거리 | Sintong-gil | Asan City | Dogo-myeon | National Route 45 overlap |
| Soonchunhyang University | 순천향대학교 | | Asan City | Sinchang-myeon | National Route 45 overlap |
| Soonchunhyang University IS | 순천향대삼거리 | Prefectural Route 623 (Suncheonhyang-ro) | Asan City | Sinchang-myeon | National Route 45 overlap Prefectural Route 623 overlap |
| Eupnae IS | 읍내삼거리 | Prefectural Route 623 (Seobunam-ro) | Asan City | Sinchang-myeon | National Route 45 overlap Prefectural Route 623 overlap |
| Eupnae IS | 읍내 교차로 | National Route 39 (Onyangsunhwan-ro) National Route 45 (Oncheon-daero) | Asan City | Sinchang-myeon | National Route 39 overlap National Route 45 overlap |
| Haengmok IS | 행목 교차로 | Prefectural Route 623 (Suncheonhyang-ro) | Asan City | Sinchang-myeon | National Route 39 overlap |
| Chosa IS | 초사 교차로 | Mugunghwa-ro | Asan City | Onyang-dong | National Route 39 overlap |
| Jangchon IS | 장촌 교차로 | National Route 39 (Uiam-ro) | Asan City | Onyang-dong | National Route 39 overlap |
| Jwabu IS | 좌부 교차로 | Prefectural Route 623 (Gobul-ro) | Asan City | Onyang-dong | |
| Namdong IS | 남동 교차로 | Oncheon-daero | Asan City | Baebang-eup | |
| Mosan IS Baebang Station | 모산사거리 배방역 | Baebang-ro | Asan City | Baebang-eup | |
| No name | (이름 없음) | Oncheon-daero | Asan City | Baebang-eup | |
| Eunsu IS | 은수 교차로 | National Route 43 (Sejong ~ Pyeongtaek Motorway) Buksudong-ro | Asan City | Baebang-eup | |
| Bonggang IS Bonggang Bridge | 봉강삼거리 봉강교 | Hoseo-ro | Asan City | Baebang-eup | |
| Tangjeong IS (Segyo Underpass) | 탕정교차로 (세교지하차도) | Saeasan-ro | Asan City | Baebang-eup | |
| No name | (이름 없음) | Huimang-ro | Asan City | Baebang-eup | |
| No name (Jangjae Underpass) | (이름 없음) (장재지하차도) | Gosokcheol-daero | Asan City | Baebang-eup | |
| Sinbang IS (Sinbang Underpass) | 신방삼거리 (신방지하차도) | Chungmu-ro | Cheonan City | Dongnam District | |
| Hasin IS | 하신삼거리 | Sinchon 4-ro | Cheonan City | Dongnam District | |
| Saemal IS | 새말사거리 | Seobu-daero | Cheonan City | Dongnam District | |
| Nambu Overpass | 남부고가교 | | Cheonan City | Dongnam District | |
| Cheongsam IS (Cheongsam Overpass) | 청삼교차로 (청삼고가차도) | National Route 1 National Route 23 (Cheonan-daero) | Cheonan City | Dongnam District | |
| Chwiamsan Tunnel | 취암산터널 | | Cheonan City | Dongnam District | Approximately 1360m |
| Gyocheon IS | 교천교차로 | Gyocheon 2-gil | Cheonan City | Dongnam District Mokcheon-eup | |
| Singye IS | 신계교차로 | Chungjeol-ro | Cheonan City | Dongnam District Mokcheon-eup | |
| Unjeon IS | 운전교차로 | Sinsaunjeon-gil | Cheonan City | Dongnam District Mokcheon-eup | |
| Hwaseong IS | 화성교차로 | 5sandan-ro | Cheonan City | Dongnam District Seongnam-myeon | |
| Jangsan IS | 장산교차로 | Prefectural Route 693 (Susin-ro) | Cheonan City | Dongnam District Susin-myeon | |
| Byeongcheon Bridge | 병천교 | | Cheonan City | Dongnam District Susin-myeon | |
| Byeongcheon Bridge | | | Cheonan City | Dongnam District Byeongcheon-myeon | |
| Changdeul 2 IS | 창들2 교차로 | Prefectural Route 696 (Maebong-ro) | Cheonan City | Dongnam District Byeongcheon-myeon | |
| Maebongsan Tunnel | 매봉산터널 | | Cheonan City | Dongnam District Byeongcheon-myeon | Approximately 360m |
| Yongdu 1 Bridge Yongdu 2 Bridge | 용두1교 용두2교 | | Cheonan City | Dongnam District Byeongcheon-myeon | |
| Yongdu IS | 용두 교차로 | Yongduri 2-gil | Cheonan City | Dongnam District Byeongcheon-myeon | |
| Gudo IS | 구도 교차로 | Gudo 2-gil | Cheonan City | Dongnam District Dong-myeon | |
| Hwagye IS | 화계 교차로 | Chungjeol-ro | Cheonan City | Dongnam District Dong-myeon | |
| Dongmyeon IS | 동면삼거리 | Dongsan 1-gil | Cheonan City | Dongnam District Dong-myeon | |
| Dongsan IS | 동산삼거리 | Hwabok-ro | Cheonan City | Dongnam District Dong-myeon | Continuation into North Chungcheong Province |

### North Chungcheong Province

| Name | Hangul name | Connection | Location | Location | Note |
| Botapsa IS | 보탑사삼거리 | Prefectural Route 313 (Munsa-ro) Gimyusin-gil | Jincheon County | Jincheon-eup | South Chungcheong Province - North Chungcheong Province border line |
| Seongam Elementary School | 성암초등학교 | | Jincheon County | Jincheon-eup | |
| Saseok IS | 사석삼거리 | Munjin-ro | Jincheon County | Jincheon-eup | |
| Jatgogae | 잣고개 | | Jincheon County | Jincheon-eup | |
| Guncheong IS Jincheon County Office | 군청사거리 진천군청 | Munhwa-ro Sangsan-ro | Jincheon County | Jincheon-eup | |
| Byeokam IS | 벽암사거리 | National Route 34 (Baekgok-ro) Jungangbuk-ro | Jincheon County | Jincheon-eup | National Route 34 overlap |
| Seongseok IS | 성석사거리 | Jungangdong-ro Jingwang-ro | Jincheon County | Jincheon-eup | National Route 34 overlap |
| Sinseong IS | 신성사거리 | National Route 34 (Munhwa-ro) Wondeok-ro | Jincheon County | Jincheon-eup | National Route 34 overlap |
| Jincheon IC (Angol IS) | 진천 나들목 (안골삼거리) | Jungbu Expressway | Jincheon County | Jincheon-eup | |
| Gasan IS | 가산삼거리 | Gasan-gil | Jincheon County | Jincheon-eup | |
| No name | (이름 없음) | Deokgeum-ro | Jincheon County | Deoksan-myeon | |
| No name | (이름 없음) | Seupji-gil | Jincheon County | Deoksan-myeon | |
| No name | (이름 없음) | Prefectural Route 513 (Chogeum-ro) | Jincheon County | Deoksan-myeon | |
| Yongmong IS | 용몽 교차로 | Yongmong-ro | Jincheon County | Deoksan-myeon | |
| Sindon IS | 신돈 교차로 | Prefectural Route 533 (Wonjung-ro) | Eumseong County | Maengdong-myeon | |
| Bonseong IS | 본성 교차로 | Prefectural Route 533 (Deokgeum-ro) | Eumseong County | Maengdong-myeon | |
| Masan IS | 마산 교차로 | Prefectural Route 533 (Daedong-ro) | Eumseong County | Maengdong-myeon | |
| Sambong Bridge | 삼봉교 | | Eumseong County | Geumwang-eup | |
| Geumwang-Kkotdongne IC (Geumwang-Kkotdongne IC IS) | 금왕꽃동네 나들목 (금왕꽃동네IC 교차로) | Pyeongtaek–Jecheon Expressway Maengdongsandanjiwon-ro | Eumseong County | Geumwang-eup | |
| Yuchon IS | 유촌 교차로 | Yuchon-ro | Eumseong County | Geumwang-eup | |
| Saeteo Bridge Oseon 2 Bridge | 새터교 오선2교 | | Eumseong County | Geumwang-eup | |
| Oseon IS | 오선 교차로 | Prefectural Route 82 (Daegeum-ro) | Eumseong County | Geumwang-eup | |
| Gajin Bridge | 가진교 | | Eumseong County | Geumwang-eup | |
| Naesong IS | 내송 교차로 | Prefectural Route 329 (Geumil-ro) | Eumseong County | Geumwang-eup | |
| Deokdong Bridge Gulam Bridge Eungcheon Bridge | 덕동교 굴암교 응천교 | | Eumseong County | Geumwang-eup | |
| Jeongsaeng IS | 정생 교차로 | National Route 37 (Saengeum-daero) | Eumseong County | Geumwang-eup | National Route 37 overlap |
| Dosin IS | 도신 교차로 | Saengsam-ro | Eumseong County | Saenggeuk-myeon | National Route 37 overlap |
| Byeongam IS | 병암 교차로 | Prefectural Route 306 (Ilsaeng-ro) Eumseong-ro | Eumseong County | Saenggeuk-myeon | National Route 37 overlap Prefectural Route 306 overlap |
| Saenggeuk IS | 생극사거리 | Osin-ro | Eumseong County | Saenggeuk-myeon | National Route 37 overlap Prefectural Route 306 overlap |
| Saenggeuk IS | 생극 교차로 | National Route 3 Prefectural Route 306 (Jungwon-daero) | Eumseong County | Saenggeuk-myeon | National Route 3, National Route 37 overlap Prefectural Route 306 overlap |
| Chapyeong IS | 차평 교차로 | Eumseong-ro | Eumseong County | Saenggeuk-myeon | National Route 3, National Route 37 overlap Continuation into Gyeonggi Province |
| Wondang IS | 원당교차로 | Prefectural Route 520 (Wondang-gil) | Eumseong County | Gamgok-myeon | National Route 3, National Route 37 overlap Continuation into Gyeonggi Province |
| Cheongmicheon Bridge | 청미천교 | | Eumseong County | Gamgok-myeon | National Route 3, National Route 37 overlap Continuation into Gyeonggi Province |

### Gyeonggi Province

| Name | Hangul name | Connection | Location | Location | Note |
| Cheongmicheon Bridge | 청미천교 | | Icheon City | Janghowon-eup | National Route 3, National Route 37 overlap North Chungcheong Province - Gyeonggi Province border line Terminus |
| Jinam IC | 진암 나들목 | National Route 3 (Jungwon-daero) National Route 37 National Route 38 (Seodong-daero) | Icheon City | Janghowon-eup | National Route 3, National Route 37 overlap North Chungcheong Province - Gyeonggi Province border line Terminus |