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Islands in South America Ranked by Area

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

Summary

Isla Grande de Tierra del Fuego ranks #1 with 47,992 km². Marajó is second with 40,100 km², 19.7% behind. The top five are Isla Grande de Tierra del Fuego, Marajó, Bananal Island, Tupinambarana and Chiloé Island. The median across all 50 is 921.5 km²; Merino Jarpa Island is last at 430 km².

#1
Isla Grande de Tierra del Fuego · 47,992 km²
Median
921.5 km²
Coverage
50 islands in South America
Data year
As recorded in Wikidata
Last updated
2026-11-14
Top 10: AreaBar chart of the top 10: 1. Isla Grande de Tierra del Fuego 47,992; 2. Marajó 40,100; 3. Bananal Island 19,162; 4. Tupinambarana 11,850; 5. Chiloé Island 8,394; 6. West Tupinambarana 7,700; 7. Wellington Island 6,322; 8. Riesco Island 5,110; 9. Ilha Grande do Gurupá 4,864; 10. Isabela Island 4,711.Isla Grande de Tierra d…47,992Marajó40,100Bananal Island19,162Tupinambarana11,850Chiloé Island8,394West Tupinambarana7,700Wellington Island6,322Riesco Island5,110Ilha Grande do Gurupá4,864Isabela Island4,711
Top 10: Area (km²). Bar chart of the top 10: 1. Isla Grande de Tierra del Fuego 47,992; 2. Marajó 40,100; 3. Bananal Island 19,162; 4. Tupinambarana 11,850; 5. Chiloé Island 8,394; 6. West Tupinambarana 7,700; 7. Wellington Island 6,322; 8. Riesco Island 5,110; 9. Ilha Grande do Gurupá 4,864; 10. Isabela Island 4,711.

Full ranking

Islands in South America Ranked by Area
RankIslandLocationArea (km²)
1Isla Grande de Tierra del FuegoChile, Argentina47,992
2MarajóBrazil40,100
3Bananal IslandBrazil19,162
4TupinambaranaBrazil11,850
5Chiloé IslandChile8,394
6West TupinambaranaBrazil7,700
7Wellington IslandChile6,322
8Riesco IslandChile5,110
9Ilha Grande do GurupáBrazil4,864
10Isabela IslandEcuador4,711
11Hoste IslandChile4,117
12Santa Inés IslandChile3,688
13North TupinambaranaBrazil3,600
14Navarino IslandChile2,473
15Magdalena IslandChile2,025
16São Luís IslandBrazil1,410
17Desolación IslandChile1,352
18Dawson IslandChile1,290
19Campana IslandChile1,188
20Aracena IslandChile1,164
21Clarence IslandChile1,111
22Serrano IslandChile1,063
23Madre de Dios IslandChile1,043
24Margarita IslandVenezuela, RB1,020
25Santa Cruz IslandEcuador979
26Melchor IslandChile864
27Puná IslandEcuador855
28Hanover IslandChile812
29Prat IslandChile761
30Isla TobejubaVenezuela, RB700
31Chatham IslandChile696
32Corocoro IslandVenezuela, RB, Guyana690
33Londonderry IslandChile643
34Contreras IslandChile626
35Benjamin IslandChile618
36Gordon IslandChile591
37Santiago IslandEcuador577
38Patricio Lynch IslandChile561
39San Cristóbal IslandEcuador547
40Jorge Montt IslandChile537
41Talavera IslandParaguay534
42Mornington IslandChile529
43Duke of York IslandChile522
44Traiguen IslandChile520
45Esmeralda IslandChile515
46Isla del ReyChile515
47Isla de los EstadosArgentina501
48Rivero IslandChile451.5
49Angamos IslandChile447.7
50Merino Jarpa IslandChile430

About the top 10

#3 Bananal Island

Bananal Island ranks #3 on this list with 19,162 km².

Country
Brazil
Length
350 km
Elevation
189 m
Area
19,162 km²

Also ranks #57 in area.

Full island profile

#4 Tupinambarana

Tupinambarana ranks #4 on this list with 11,850 km².

Country
Brazil
Elevation
23 m
Area
11,850 km²

Also ranks #73 in area.

Full island profile

#6 West Tupinambarana

West Tupinambarana ranks #6 on this list with 7,700 km².

Country
Brazil
Area
7,700 km²

Full island profile

#7 Wellington Island

Wellington Island ranks #7 on this list with 6,322 km².

Country
Chile
Length
157 km
Elevation
1,463 m
Area
5,556 km²

Full island profile

#8 Riesco Island

Riesco Island ranks #8 on this list with 5,110 km².

Country
Chile
Length
120 km
Elevation
246 m
Area
5,110 km²

Full island profile

#9 Ilha Grande do Gurupá

Ilha Grande do Gurupá ranks #9 on this list with 4,864 km².

Country
Brazil
Length
129 km
Elevation
9 m
Area
4,864 km²

Full island profile

#10 Isabela Island

Isabela Island ranks #10 on this list with 4,711 km².

Country
Ecuador
Length
137 km
Elevation
26 m
Area
4,711 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 South America (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.