England

Portsea Island

Pop. ~150,000+ (Portsmouth)

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Typesea island
Area24.5214 km²
Population150000
Location50.8073, -1.07016

Part of the England islands map.

Names

Welsh: Portsea Island; French: Portsea

Geology

Bedrock: Thames Group (Clay, Silt, Sand And Gravel), Eocene–Eocene. Superficial deposits: Brickearth (Silt (Undifferentiated)). Contains British Geological Survey materials © UKRI 2026, licensed under the BGS Open Data Licence (OGL v3.0). Source: BGS DigMapGB-625 Bedrock & Superficial WMS.

Nearby and related islands

Belle Isle (Windermere)
Brownsea Island
Burgh Island
Eel Pie Island
Isle of Dogs
Isle of Wight
Lindisfarne (Holy Island)
Lundy

Sources

Wikidata · Q1228829 · CC0

Last reviewed: 2026-08-13.