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Korea's Coastline at 15,270.4 km Long, an Increase of 307.6 km from 2014
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Date
2026.07.30.
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58
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Korea's Coastline at 15,270.4 km Long, an Increase of 307.6 km from 2014
The Korea Hydrographic and Oceanographic Agency of the Ministry of Oceans and Fisheries announced the results of the 2nd Coastline Change Survey (2021–2025), which include the total length of Korea’s coastline.
A comparison of the coastline lengths for 2014 (2001–2013)—which were first announced by the Korea Hydrographic and Oceanographic Agency’s Survey—and 2026 (2021–2025) showed that the total coastline length increased by 307.6 km from 14,962.8 km to 15,270.4 km.
The data show that the length of the natural coastline is decreasing despite the increasing total coastline length. The proportion of natural coastlines was found to have decreased from 66.0% in 2014 to 62.6% in 2026, whereas the proportion of artificial coastlines increased from 34.0% to 37.4% during the same period.
It shows that Korea’s national coastline is continuously changing depending on the development, utilization, and natural environmental conditions. In fact, coastline changes were found to be affected by not only port and fishing port development, breakwater installation, and coastal maintenance projects but also natural factors such as erosion and sedimentation.
These statistics are expected to be useful for the long-term management of coastline changes and coastal development trends, serving as foundational data that goes beyond mere changes in coastline length to show the types of changes in Korea's coastline.
"The coastline change survey data are national statistics that are very important in administrative, legal, and policy matters such as calculating the national land area, allocating fishing rights among local governments, and determining standard local allocation tax grants. We will continue striving to provide accurate coastline information to the public through regular and scientifically precise surveys," said Acting Director General Cha Seong-shin of the Korea Hydrographic and Oceanographic Agency.
The statistical data from the 2nd Coastline Change Survey are available on the Korea Hydrographic and Oceanographic Agency’s website (www.khoa.go.kr) or the Public Data Portal (http://www.data.go.kr) for download and use by anyone.
- Korea Hydrographic and Oceanographic Agency announces the results of the 2nd Coastline Change Survey (2021–2025)
The Korea Hydrographic and Oceanographic Agency of the Ministry of Oceans and Fisheries announced the results of the 2nd Coastline Change Survey (2021–2025), which include the total length of Korea’s coastline.
A comparison of the coastline lengths for 2014 (2001–2013)—which were first announced by the Korea Hydrographic and Oceanographic Agency’s Survey—and 2026 (2021–2025) showed that the total coastline length increased by 307.6 km from 14,962.8 km to 15,270.4 km.
The data show that the length of the natural coastline is decreasing despite the increasing total coastline length. The proportion of natural coastlines was found to have decreased from 66.0% in 2014 to 62.6% in 2026, whereas the proportion of artificial coastlines increased from 34.0% to 37.4% during the same period.
It shows that Korea’s national coastline is continuously changing depending on the development, utilization, and natural environmental conditions. In fact, coastline changes were found to be affected by not only port and fishing port development, breakwater installation, and coastal maintenance projects but also natural factors such as erosion and sedimentation.
These statistics are expected to be useful for the long-term management of coastline changes and coastal development trends, serving as foundational data that goes beyond mere changes in coastline length to show the types of changes in Korea's coastline.
"The coastline change survey data are national statistics that are very important in administrative, legal, and policy matters such as calculating the national land area, allocating fishing rights among local governments, and determining standard local allocation tax grants. We will continue striving to provide accurate coastline information to the public through regular and scientifically precise surveys," said Acting Director General Cha Seong-shin of the Korea Hydrographic and Oceanographic Agency.
The statistical data from the 2nd Coastline Change Survey are available on the Korea Hydrographic and Oceanographic Agency’s website (www.khoa.go.kr) or the Public Data Portal (http://www.data.go.kr) for download and use by anyone.
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