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.

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	Democratic Republic of the Congo–Rwanda	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–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

Main municipalities	Countries	Total population^{[citation needed]}
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]
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
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–United Kingdom	18,500
Saarbrücken–Forbach	Germany–France	700,000
Salzburg–Freilassing	Austria–Germany	175,000
Slavonski Brod–Brod	Croatia–Bosnia and Herzegovina	110,000
Szczecin	Poland–Germany	763,321
Valka–Valga	Latvia–Estonia	20,000
Vienna–Bratislava	Austria–Slovakia	1,900,000

North America

Main municipalities	Countries	Total population
Paso Canoas	Costa Rica–Panama	9,543
Metro Vancouver–Fraser Valley–Bellingham-Whatcom County	Canada–United States	3,350,000
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]
Calexico–Mexicali	United States-Mexico	1,143,000
San Luis Río Colorado–San Luis	United States-Mexico	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]
Lower Rio Grande Valley	United States–Mexico	2,671,028^[9]
Reynosa–McAllen	United States–Mexico	1,500,000^[10]
Brownsville–Matamoros	United States–Mexico	1,387,985^[11]

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^[12]^[13]
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
Tulcán–Ipiales	Ecuador–Colombia	190,000
Cúcuta–San Antonio del Táchira	Colombia–Venezuela	700,000 ^[14]

References

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