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Islands in Africa Ranked by Area

Islands recorded in Wikidata, ranked by Area. Only items Wikidata places in Africa (directly or through their country) are included. Source: Wikidata (CC0 1.0 (public domain)).

Summary

Madagascar ranks #1 with 587,713 km². That is 234 times Réunion in second place (2,512 km²). The top five are Madagascar, Réunion, Bioko, Mauritius Island and Fuerteventura. The median across all 50 is 282.5 km²; Ascension Island is last at 88 km².

#1
Madagascar · 587,713 km²
Median
282.5 km²
Coverage
50 islands in Africa
Data year
As recorded in Wikidata
Last updated
2026-11-14
Top 10: AreaBar chart of the top 10: 1. Madagascar 587,713; 2. Réunion 2,512; 3. Bioko 1,935; 4. Mauritius Island 1,874; 5. Fuerteventura 1,633; 6. Unguja 1,575; 7. Gran Canaria 1,560; 8. Santiago 992; 9. Pemba Island 890; 10. São Tomé Island 855.Madagascar587,713Réunion2,512Bioko1,935Mauritius Island1,874Fuerteventura1,633Unguja1,575Gran Canaria1,560Santiago992Pemba Island890São Tomé Island855
Top 10: Area (km²). Bar chart of the top 10: 1. Madagascar 587,713; 2. Réunion 2,512; 3. Bioko 1,935; 4. Mauritius Island 1,874; 5. Fuerteventura 1,633; 6. Unguja 1,575; 7. Gran Canaria 1,560; 8. Santiago 992; 9. Pemba Island 890; 10. São Tomé Island 855.

Full ranking

Islands in Africa Ranked by Area
RankIslandLocationArea (km²)
1MadagascarMadagascar587,713
2RéunionFrance2,512
3BiokoEquatorial Guinea1,935
4Mauritius IslandMauritius1,874
5FuerteventuraSpain1,633
6UngujaTanzania1,575
7Gran CanariaSpain1,560
8SantiagoCabo Verde992
9Pemba IslandTanzania890
10São Tomé IslandSão Tomé and Principe855
11LanzaroteSpain791
12Santo AntãoCabo Verde779
13Dahlak KebirEritrea755
14Madeira IslandPortugal741
15Boa VistaCabo Verde620
16Sherbro IslandSierra Leone600
17Ukerewe IslandTanzania530
18DjerbaTunisia514
19SumbaCongo, Dem. Rep.500
20FogoCabo Verde476
21Mafia IslandTanzania435
22São NicolauCabo Verde343
23IdjwiCongo, Dem. Rep.340
24InhacambaMozambique340
25Marion IslandSouth Africa290
26Bugala IslandUganda275
27MaioCabo Verde270
28São VicenteCabo Verde227
29SalCabo Verde215
30Nosy BorahaMadagascar200
31MbamuCongo, Rep.172
32PecixeGuinea-Bissau168
33MahéSeychelles157.3
34TidraMauritania150
35FormosaGuinea-Bissau140
36PríncipeSão Tomé and Principe136
37CaravelaGuinea-Bissau128
38OrangoGuinea-Bissau122.7
39Saint Helenarealm of the United Kingdom121
40RoxaGuinea-Bissau111
41CherguiTunisia110
42RodriguesMauritius109
43JetaGuinea-Bissau109
44LoogSenegal108
45OrangozinhoGuinea-Bissau107
46NoraEritrea105.1
47UnoGuinea-Bissau104
48UnhacomoGuinea-Bissau104
49Mar LodjSenegal90
50Ascension Islandrealm of the United Kingdom88

About the top 10

#5 Fuerteventura

Fuerteventura ranks #5 on this list with 1,633 km².

Country
Spain
Length
98 km
Area
1,633 km²

Full island profile

#10 São Tomé Island

São Tomé Island ranks #10 on this list with 855 km².

Country
São Tomé and Principe
Length
48 km
Elevation
2,024 m
Area
855 km²

Full island profile

Profile facts: Wikidata (CC0).

Related rankings

Source and method

Islands recorded in Wikidata, ranked by Area. Only items Wikidata places in Africa (directly or through their country) are included.

Source: Wikidata. Licence: CC0 1.0 (public domain). Retrieved: 2026-11-14.

Data: Wikidata (CC0)

Values are shown as published. Provider terms: Wikidata. All licences: Sources & licences.