Transborder agglomeration

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

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.

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 1,200,000[1][2]
Goma–Gisenyi 756,323
Abidjan–Lagos  Côte d'Ivoire /  Ghana /  Togo /  Benin /  Nigeria 27,000,000
Lomé–Aflao  Togo /  Ghana 1,544,206
N'Djamena–Kousséri  Chad /  Cameroon 1,694,819

Asia

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

Europe

Main municipalities Countries Total population
Øresund Region (Greater Copenhagen and Malmö)  Denmark– Sweden 3,964,522
Haparanda and Tornio  Sweden– Finland 32,000
Pello and Pello 4,500
Karesuando and Karesuvanto 500
Imatra and Svetogorsk  Finland– Russia 45,000
Ivangorod and Narva  Russia– Estonia 69,000
Valga and Valka  Estonia– Latvia 20,000
Como and Chiasso (part of Greater Milan)[4]  Italy–  Switzerland 189,000[5]
Gorizia and Nova Gorica  Italy– Slovenia
Basel and Huningue and Weil am Rhein (Trinational Eurodistrict of Basel)   Switzerland– France– Germany 2,400,000
Geneva and Annemasse and Ferney-Voltaire and Nyon (Grand Genève)   Switzerland– France 890,000
Kreuzlingen and Konstanz   Switzerland– Germany 110,000
Basque Eurocity Bayonne-San Sebastián  France– Spain 620,000
Le Perthus and Els Límits 700
Bourg-Madame and Puigcerdà
Hendaye and Irun
Lille and Roubaix and Tourcoing and Mouscron and Tournai and Kortrijk (Eurometropolis Lille–Kortrijk–Tournai)  France– Belgium 1,850,000
Longwy and Aubange and Pétange  France– Belgium– Luxembourg 80,000
Strasbourg and Kehl (Strasbourg-Ortenau Eurodistrict)  France– Germany 700,000
Forbach and Saarbrücken 700,000
La Línea de la Concepción and Gibraltar  Spain– Gibraltar 95,628
Baarle-Hertog and Baarle-Nassau  Belgium– Netherlands 9,262
Görlitz and Zgorzelec  Germany– Poland 85,000
Guben and Gubin 35,000
Frankfurt (Oder) and Słubice 75,000
Szczecin 763,321
Cieszyn and Český Těšín  Poland– Czech Republic 57,000
Herzogenrath and Kerkrade  Germany– Netherlands 95,000
Freilassing and Salzburg  Germany– Austria 175,000
Vienna and Bratislava  Austria– Slovakia 2,400,000
Komárom and Komárno  Hungary– Slovakia 56,000
Rousse and Giurgiu  Bulgaria– Romania 250,000
Lifford and Strabane  Ireland– United Kingdom 18,500
Brod and Slavonski Brod  Bosnia and Herzegovina– Croatia 110,000
Zvornik and Mali Zvornik  Bosnia and Herzegovina– Serbia 70,000
Gradiška and Stara Gradiška  Bosnia and Herzegovina– Croatia 53,000
Novi Grad and Dvor  Bosnia and Herzegovina– Croatia 30,000
Dubica and Hrvatska Dubica  Bosnia and Herzegovina– Croatia 23,000
Kostajnica and Hrvatska Kostajnica  Bosnia and Herzegovina– Croatia 8,000

North America

Main municipalities Countries Total population
Paso Canoas  Costa Rica /  Panama 9,543
Metro Vancouver–Fraser Valley–Bellingham-Whatcom County  United States /  Canada 3,350,000
Detroit–Windsor 5,976,595
Buffalo-Niagara Region 1,614,790
Port Huron–Sarnia–Point Edward 105,776
Sault Ste. Marie–Sault Ste. Marie 93,944
San Diego–Tijuana  United States /  Mexico 5,105,769[6]
Calexico–Mexicali 1,143,000
San Luis Río Colorado–San Luis 227,000
Nogales–Nogales 240,000
El Paso–Juárez 2,500,000[7]
Laredo–Nuevo Laredo 775,481[8]
Lower Rio Grande Valley 2,671,028[9]
Reynosa–McAllen 1,500,000[10]
Brownsville–Matamoros 1,387,985[11]

South America

Main municipalities Countries Total population
Saint-Laurent-du-Maroni–Albina  French Guiana /  Suriname
Saint Georges–Oiapoque  French Guiana /  Brazil 32,000
Quaraí–Artigas  Brazil /  Uruguay 67,000
Santana do Livramento–Rivera 140,000
Chuí–Chuy 15,592[12][13]
Corumbá–Puerto Suárez  Brazil /  Bolivia 124,000
Tabatinga–Leticia–Santa Rosa  Brazil /  Colombia /  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
Barracão–Dionísio Cerqueira–Bernardo de Irigoyen  Brazil /  Argentina 36,000
Uruguaiana–Paso de los Libres 170,000
Tulcán–Ipiales  Ecuador /   Colombia 190,000
Cúcuta–San Antonio del Táchira  Colombia /  Venezuela 700,000 [14]

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. ↑ Dankov, Artem. "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. ↑ Gomez, Rodney; Guajardo, Luis; Ely-Ledesma, Edna (June 15, 2022). "It is time to recognize the Rio Grande Valley as a rising borderland metropolis". Rice University: Kinder Institute for Urban Research.{{cite web}}: CS1 maint: multiple names: authors list (link)
  10. ↑ "McAllen Overview". McAllen Chamber of Commerce. Retrieved 26 August 2011.
  11. ↑ "Explore Matamoros". Brownsville South Padre Island International Airport. Retrieved 5 February 2024.
  12. ↑ "IBGE Cidades (Brazil's Census 2010)".
  13. ↑ "INE (Uruguay's Census 2011)".
  14. ↑ 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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