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Countries by Coastline-to-Area Ratio

Which countries in the world have the longest coastlines compared to their total area?
Coastline data, based on original research by the Quizmaster
Countries smaller than 100,000 km² were excluded — South Korea was the smallest included.
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Lexiconic
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Last updated: August 31, 2025
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First submittedJuly 27, 2025
Times taken44
Average score70.0%
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Coastline (km)
Area (km²)
Ratio (Coastline/Area)
Country
27,400
323,802
0.08464
Norway
16,700
242,900
0.06875
United Kingdom
9,480
131,990
0.07182
Greece
5,750
109,884
0.05233
Cuba
17,300
342,353
0.05054
Philippines
5,200
103,000
0.05049
Iceland
4,860
100,210
0.04850
South Korea
15,500
377,930
0.04101
Japan
31,300
756,102
0.04140
Chile
10,300
270,467
0.03810
New Zealand
52,500
1,904,569
0.02757
Indonesia
11,200
462,840
0.02420
Papua New Guinea
12,200
551,695
0.02211
France
3,150
147,570
0.02135
Bangladesh
6,020
301,336
0.01997
Italy
2,140
120,538
0.01775
North Korea
5,780
331,212
0.01745
Vietnam
5,270
330,803
0.01594
Malaysia
6,520
450,295
0.01448
Sweden
1,510
112,492
0.01342
Honduras
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