Major Cities Located in Coastal Plains Around the World

Coastal plains—low-lying flatlands adjacent to oceans—host many of the world's largest cities due to trade access, ports, and moderate climates. Here's a continental breakdown.

North America

• USA: New York City, Washington DC, Boston, Philadelphia, Miami, Houston, New Orleans, Tampa, Baltimore, Charleston, Corpus Christi.
• Canada: Vancouver (delta), Halifax, St. John's.
• Mexico: Veracruz, Tampico, Cancún, Coatzacoalcos.

South America

• Argentina: Buenos Aires (Río de la Plata estuary).
• Brazil: Rio de Janeiro, São Paulo (inland but metro reaches coast), Santos, Recife, Fortaleza, Salvador, Porto Alegre.
• Uruguay: Montevideo.
• Peru: Lima (coastal desert plain).
• Venezuela: Caracas (coastal valley), Maracaibo, Barcelona.
• Colombia: Barranquilla, Cartagena, Santa Marta.
• Ecuador: Guayaquil.

Europe

• UK: London (Thames estuary), Liverpool, Hull, Southampton, Portsmouth.
• France: Paris (Paris Basin, not coastal plain), but Le Havre, Marseille, Nantes, Bordeaux (estuaries).
• Netherlands: Amsterdam, Rotterdam, The Hague, Utrecht — entire country is coastal plain / delta (much below sea level).
• Belgium: Brussels (inland), Antwerp (Scheldt estuary), Ghent, Bruges.
• Denmark: Copenhagen (Zealand island coastal plain).
• Sweden: Stockholm (archipelago), Malmö, Gothenburg.
• Russia: St. Petersburg (Neva delta), Kaliningrad.
• Italy: Venice (lagoon), Genoa, Naples, Palermo (coastal), but many cities on hills.
• Spain: Barcelona, Valencia, Málaga, Cádiz, A Coruña.
• Portugal: Lisbon (Tagus estuary), Porto (Douro estuary).

Asia

• Japan: Tokyo (Kantō Plain), Osaka (Osaka Plain), Nagoya (Nōbi Plain), Fukuoka, Sapporo (Ishikari Plain).
• China: Shanghai (Yangtze Delta), Guangzhou (Pearl River Delta), Shenzhen, Tianjin, Hangzhou, Ningbo, Xiamen.
• Hong Kong / Macau: Coastal / delta.
• Singapore: Entire city-state = coastal plain.
• Thailand: Bangkok (Chao Phraya Delta).
• India: Mumbai (coastal), Chennai, Kolkata (Ganges Delta), Kochi, Visakhapatnam.
• Bangladesh: Dhaka (near delta), Chittagong — world's largest delta population.
• Vietnam: Ho Chi Minh City (Mekong Delta), Hanoi (Red River Delta).
• Indonesia: Jakarta (Java north coast plain), Surabaya.
• Philippines: Manila (Luzon coastal plain).
• South Korea: Seoul (Han River plain), Busan, Incheon.
• Pakistan: Karachi (coastal plain).

Africa

• Egypt: Alexandria, Port Said (Nile Delta).
• Nigeria: Lagos (lagoon/coastal plain).
• South Africa: Cape Town, Durban, Port Elizabeth.
• Kenya: Mombasa.
• Ghana: Accra, Tema.
• Ivory Coast: Abidjan.
• Senegal: Dakar.
• Morocco: Casablanca, Rabat, Tangier.
• Tunisia: Tunis.

Australia / Oceania

• Australia: Sydney, Melbourne, Brisbane, Perth, Adelaide, Newcastle, Gold Coast — all on coastal plains.
• New Zealand: Auckland (isthmus), Wellington, Christchurch (Canterbury Plains).
• Papua New Guinea: Port Moresby.

Why Coastal Plains?

• Port access → trade, migration, industry.
• Flat land → easy construction, expansion.
• Water supply (rivers, aquifers).
• Moderate climate (maritime influence).
• Food: fisheries, delta agriculture.

Over 40% of humanity lives within 100 km of a coast. Coastal plain cities are the engines of globalization—and the front lines of sea-level rise.