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🐠 Most Protected Territorial Waters

Marine protected areas as a share of territorial waters.

📅 2025📏 %174 entries
100.0% – 16.9%16.4% – 4.4%4.2% – 0.9%0.8% – 0.1%0.1% – 0.0%No data
1
🇲🇨Monaco
100.0%
2
🇵🇼Palau
98.0%
3
🇲🇫Saint Martin
97.0%
4
🇳🇨New Caledonia
96.5%
5
🇵🇫French Polynesia
87.4%
6
🇰🇿Kazakhstan
52.5%
7
🇫🇷France
49.2%
8
🇬🇧United Kingdom
46.8%
9
🇦🇺Australia
45.4%
10
🇩🇪Germany
45.3%
11
🇨🇱Chile
41.2%
12
🇨🇴Colombia
41.1%
13
🇧🇪Belgium
38.3%
14
🇳🇱Netherlands
33.5%
15
🇸🇨Seychelles
32.6%
16
🇲🇵Northern Mariana Islands
32.4%
17
🇳🇿New Zealand
30.4%
18
🇨🇷Costa Rica
28.4%
19
🇩🇰Denmark
27.1%
20
🇬🇦Gabon
26.8%
21
🇧🇷Brazil
26.6%
22
🇵🇦Panama
26.3%
23
🇵🇱Poland
24.0%
24
🇱🇹Lithuania
23.2%
25
🇲🇽Mexico
22.6%
26
🇺🇦Ukraine
21.6%
27
🇷🇴Romania
21.5%
28
🇧🇭Bahrain
21.4%
29
🇧🇿Belize
20.4%
30
🇪🇨Ecuador
19.3%
31
🇪🇪Estonia
19.2%
32
🇪🇸Spain
19.0%
33
🇺🇸United States
19.0%
34
🇸🇩Sudan
17.0%
35
🇵🇹Portugal
16.9%
36
🇱🇻Latvia
16.4%
37
🇴🇲Oman
16.2%
38
🇸🇪Sweden
16.1%
39
🇿🇦South Africa
15.4%
40
🇬🇮Gibraltar
14.2%
41
🇨🇬Congo
14.1%
42
🇯🇵Japan
13.8%
43
🇩🇴Dominican Republic
13.3%
44
🇦🇷Argentina
12.0%
45
🇦🇪United Arab Emirates
12.0%
46
🇰🇮Kiribati
11.9%
47
🇫🇮Finland
11.8%
48
🇨🇲Cameroon
11.4%
49
🇮🇹Italy
11.0%
50
🇮🇲Isle of Man
10.8%

Highlights

As of 2025, Monaco ranks first with 100.0%, followed by Palau (98.0%) and Saint Martin (97.0%).

Across 174 countries and territories, values run from 100.0% (Monaco) to 0.0% (Vanuatu), with a median of 2.2%.

By region, the top 10 is made up of 4 from Europe, 4 from Oceania, 1 from the Americas and 1 from Asia.

Source: World Bank Open Data — Marine protected areas (% of territorial waters), 2025. Unit: %.

Source: World Bank Open Data — Marine protected areas (% of territorial waters) · CC BY 4.0 · fetched Oct 16, 2026