Transborder agglomeration

A transborder agglomeration is an urban agglomeration or conurbation that extends into multiple sovereign states and/or dependent territories. It includes city-states that agglomerate with their neighbouring countries.

San Diego–Tijuana is an urban agglomeration across the Mexico–United States border.

List of transborder agglomerations

Africa
Main municipalities Countries Total population
Kinshasa–Brazzaville Democratic Republic of the Congo–Republic of the Congo 19,547,463
Bukavu–Cyangugu Democratic Republic of the Congo–Rwanda ~1.2 million[1][2]
Goma–Gisenyi Democratic Republic of the Congo–Rwanda 756,323
Lomé–Aflao Togo–Ghana 1,544,206
N'djamena–Kousséri Chad–Cameroon 1,694,819

Asia
Main municipalities Countries Total population
Astara–Astara Iran–Azerbaijan 100,000
Basra–Khorramshahr–Abadan Iraq–Iran 2,000,000
Blagoveshchensk–Heihe Russia–China 400,000
Dandong–Sinuiju China–North Korea 1,000,000
Dhahran–Jubail–Manama Saudi Arabia–Bahrain 2,000,000
Fergana–Kyzyl-Kiya Uzbekistan–Kyrgyzstan 300,000
Sijori Growth Triangle (Singapore–Johor Bahru–Batam–Bintan) Singapore–Malaysia–Indonesia 9,000,000
Greater Bay Area (Guangzhou–Dongguan–Shenzhen–Hong Kong–Macau) China–Hong Kong–Macau 71,200,000
Kara-Suu–Qorasuv Kyrgyzstan–Uzbekistan 40,000
Lahore–Amritsar Pakistan–India 12,000,000
Mukdahan–Savannakhet Thailand–Laos 200,000
Padang Besar–Padang Besar Malaysia–Thailand 20,000
Tashkent–Saryagash Uzbekistan–Kazakhstan 3,000,000 [3]
Vientiane–Nong Khai Laos–Thailand 900,000

Europe
Further information: Eurodistrict
Main municipalities Countries Total population
Øresund Region (Greater Copenhagen and Malmö) Denmark–Sweden 3,964,522
Baarle-Hertog–Baarle-Nassau Belgium–Netherlands 9,262
Basel–Huningue–Weil am Rhein (Regio TriRhena) Switzerland–France–Germany 2,400,000
Bourg-Madame–Puigcerdà France–Spain
Como–Chiasso (part of Greater Milan)[4] Italy–Switzerland 189,000[5]
Saarbrücken–Forbach Germany–France 700,000
Geneva–Annemasse–Ferney-Voltaire–Nyon (France–Vaud–Geneva basin or Grand Genève) Switzerland–France 890,000
Gorizia–Nova Gorica Italy–Slovenia
Görlitz–Zgorzelec Germany–Poland 85,000
Guben–Gubin Germany–Poland 35,000
Hendaye–Irun France–Spain
Ivangorod–Narva Russia–Estonia 69,000
Katowice–Ostrava (the Upper Silesian metropolitan area, including directly cut Český Těšín-Cieszyn) Poland–Czech Republic 5,300,000
Komárno–Komárom Slovakia–Hungary 56,000
Le Perthus–Els Límits France–Spain 700
Basque Eurocity Bayonne-San Sebastián France–Spain 620,000
Lille–Roubaix–Tourcoing–Mouscron–Tournai–Kortrijk France–Belgium 1,850,000
Longwy–Aubange–Pétange France–Belgium–Luxembourg 80,000
Strasbourg–Kehl France–Germany 700,000
Konstanz–Kreuzlingen Germany–Switzerland 110,000
Kerkrade–Herzogenrath Netherlands–Germany 95,000
Frankfurt (Oder)–Słubice Germany–Poland 75,000
Haparanda–Tornio Sweden–Finland 32,000
Pello–Pello Sweden–Finland 4,500
Karesuando–Karesuvanto Sweden–Finland 500
Imatra–Svetogorsk Finland–Russia 45,000
Rousse–Giurgiu Bulgaria–Romania 250,000
Lifford–Strabane Ireland–Northern Ireland 18,500
Valka–Valga Latvia–Estonia 20,000
Vienna–Bratislava Austria–Slovakia 1,900,000
Slavonski Brod–Brod Croatia–Bosnia and Herzegovina 110,000
Szczecin Poland–Germany 763,321

North America
Main municipalities Countries Total population
Paso Canoas Costa Rica–Panama
Metro Vancouver–Fraser Valley–Bellingham Canada–United States 3,050,000
Detroit–Windsor United States–Canada 5,976,595
Buffalo-Niagara Region United States–Canada 1,614,790
Port Huron–Sarnia–Point Edward United States–Canada 105,776
Sault Ste. Marie–Sault Ste. Marie United States–Canada 93,944
San Diego–Tijuana United States–Mexico 5,105,769[6]
Mexicali–Calexico Mexico–United States 1,143,000
San Luis Río Colorado–San Luis Mexico–United States 227,000
Nogales–Nogales United States–Mexico 240,000
El Paso–Juárez United States–Mexico 2,500,000[7]
Laredo–Nuevo Laredo United States–Mexico 775,481[8]
Reynosa–McAllen Mexico–United States 1,500,000[9]
Brownsville–Matamoros United States–Mexico 1,136,995[10]

South America
Main municipalities Countries Total population
Saint-Laurent-du-Maroni–Albina French Guiana (France)–Suriname
Saint Georges–Oiapoque French Guiana (France)–Brazil 32,000
Santana do Livramento–Rivera Brazil–Uruguay 140,000
Chuí–Chuy Brazil–Uruguay 15,592[11][12]
Corumbá–Puerto Suárez Brazil–Bolivia 124,000
Leticia–Tabatinga–Santa Rosa Colombia–Brazil–Peru 107,000
Ponta Porã–Pedro Juan Caballero Brazil–Paraguay 209,000
Foz do Iguaçu–Ciudad del Este–Puerto Iguazu Brazil–Paraguay–Argentina 800,000
Bernardo de Irigoyen–Barracão–Dionísio Cerqueira Argentina–Brazil 36,000
Uruguaiana–Paso de los Libres Brazil–Argentina 170,000
Cúcuta–San Antonio del Táchira Colombia–Venezuela 700,000 [13]

See also

References
  1. "Bukavu, Democratic Republic of the Congo Population (2023) - Population Stat". populationstat.com. Retrieved 2 May 2023.
  2. "Explore Cyangugu Town". Nyungwe Forest National Park. Retrieved 2 May 2023.
  3. "Central Asian cities are overgrown with slums". centre1.com. Retrieved 12 May 2017.
  4. "Archived copy" (PDF). www.espon.eu. Archived from the original (PDF) on 24 September 2015. Retrieved 12 January 2022.{{cite web}}: CS1 maint: archived copy as title (link)
  5. "Archived copy" (PDF). www.espon.eu. Archived from the original (PDF) on 24 September 2015. Retrieved 12 January 2022.{{cite web}}: CS1 maint: archived copy as title (link)
  6. "San Diego - Tijuana". World Gazetteer. Archived from the original on 2007-10-01. Retrieved 1 September 2011.
  7. "The 411 - Fascinating Facts". Guest Life: El Paso/Juarez and Southern New Mexico. Archived from the original on 28 September 2007. Retrieved 17 Feb 2010.
  8. "Nuevo Laredo Metro area". World Gazetteer. Archived from the original on 9 February 2013. Retrieved 1 September 2011.
  9. "McAllen Overview". McAllen Chamber of Commerce. Retrieved 26 August 2011.
  10. "Matamoros-Brownsville". World Gazetteer. Retrieved 22 August 2011.
  11. "IBGE Cidades (Brazil's Census 2010)".
  12. "INE (Uruguay's Census 2011)".
  13. http://www.lapatilla.com/site/2016/08/15/cucuta-y-san-antonio-dos-ciudades-unidas-pero-separadas-por-cierre-frontera/ "...que une ambas ciudades formando una conurbación, los 650.000 habitantes de Cúcuta y los 50.000 de San Antonio supieron que comenzaban tiempos difíciles."
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