The National Capital Region (NCR) is made up of the capital Ottawa and neighbouring Gatineau which is located across the Ottawa River. As Ottawa is in Ontario and Gatineau Quebec this is a unique conurbation. Federal government buildings are located in both cities and many workers live in one city and work in the other. The National Capital Region consists of an area of 5319 square kilometres that straddles the boundary between the provinces of Ontario and Quebec. The area of the National Capital Region is very similar to that of the Ottawa-Gatineau Census Metropolitan Area (CMA) although the National Capital Region contains a number of small neighbouring communities that are not contained within the CMA. When all the communities are added the population is around 1500000. Ottawa-Gatineau is the only CMA in the nation to fall within two provinces.

British Columbia's Lower Mainland is the most populated area in Western Canada. It consists of many mid sized continuous urban areas including Vancouver North Vancouver Surrey Burnaby Richmond and Coquitlam. Germany

Germany has three concurbations along the River Rhine namely Rhine-Main Rhine-Neckar and Rhine-Ruhr. The Rhine-Ruhr is a densely populated polycentric metropolitan region in the western part of Germany comprising the three subregions of Ruhr Metropolitan Region Dsseldorf-Mnchengladbach-Wuppertal Region and Cologne/Bonn Metropolitan Region. These three are all interlinked by a continuous urban settlement while at the same time having different cultural and economic agendas. India

The National Capital Region (NCR - the Tri-State Region) is a name for the conurbation or metropolitan area which encompasses the entire National Capital Territory of Delhi as well as urban areas ringing it in neighbouring states of Uttar Pradesh Haryana and Rajasthan. With a total area of about 33578 km2 (12965 sq mi)it has an estimated population of 21961994 in 2007. Japan

The Taiheiy Belt is the largest conurbation in Japan in every term extending from Ibaraki Prefecture to Fukuoka Prefecture running almost 1200 km with the total population of 82.9 million. The Greater Tokyo Area also called Shutoken (the National Capital Region) is a metropolitan area in the Kant region with the estimated population of 35676000 in 2007 often referred to as the most populous and economically largest metropolitan area in the world. Netherlands The Randstad which is a densely populated area in the Netherlands consisting of a cluster of the four biggest cities of the country and several smaller cities towns and urbanized villages is another appropriate example of a conurbation. The Brussels-Capital Region in Belgium by contrast is an agglomeration centered on one city. Poland Metropolitan Association of Upper Silesia (Grnolski Zwizek Metropolitalny) is the biggest conurbation in Poland located in Upper Silesia southern Poland. In GOP lives around 2 million people which makes 5.26% of population of Poland. South Africa Johannesburg Ekurhuleni (East Rand) and Tshwane (greater Pretoria) are currently merging to form a region that comprises of a population of 14 6 million people5. South America The Greater Buenos Aires conurbation which also includes several Buenos Aires Province districts constitutes the third-largest conurbation in Latin America with a population of around 13 million. United Kingdom Main article: List of conurbations in the United Kingdom Industrial and housing growth in the United Kingdom during the 19th and early 20th centuries produced many conurbations. Greater London is by far the largest urban area and is usually counted as a conurbation in statistical terms but differs from the others in the degree to which it is focused on a single central area.3 In the mid-1950s the Green Belt was introduced to stem the further urbanisation of the countryside in England. Note that as used in the United Kingdom the term "conurbation" is closer to the meaning of urban agglomeration. The list below shows the most populous urban areas in the UK as defined by the Office for National Statistics (ONS). The Greater London Urban Area contains the whole of what is commonly called London but ONS definitions divide London into a large number of smaller localities of which the largest is Croydon. Rank Urban Area6 Population (2001 Census)6 Localities78 Area (km)6 Density (People/km)6 Primary Settlement Major localities78 1 Greater London Urban Area 8278251 67 1623.37 5099.4 London Croydon Barnet Ealing Bromley 2 West Midlands Urban Area 2284093 22 599.72 3808.6 Birmingham Wolverhampton Dudley Walsall Solihull 3 Greater Manchester Urban Area 2240230 57 556.72 4024.0 Manchester Salford Bolton Stockport Oldham Rochdale Bury 4 West Yorkshire Urban Area 1499465 26 370.02 4052.4 Leeds Bradford Huddersfield Wakefield Dewsbury 5 Greater Glasgow 1199629 48 368.47 3171.0 Glasgow Paisley Coatbridge Clydebank Bearsden Milngavie Motherwell 6 Tyneside Urban Area 879996 25 210.91 4172.4 Newcastle Gateshead North Shields South Shields Whitley Bay United States clarification needed New York Tri-State Area One example of a conurbation is the expansive concept of the New York metropolitan area (the Tri-State Region) centered around New York City including 30 counties spread between New York State New Jersey Connecticut and Pennsylvania with an estimated population of 21961994 in 2007.9 Approximately one-fifteenth of all U.S. residents live in the Greater New York City area. This conurbation is the result of several central cities whose urban areas have merged together. San Francisco Bay Area Another conurbation is the combination of the metropolitan areas of San Francisco Oakland and San Jose and several minor urban centers known as the San Francisco Bay Area. Greater Los Angeles Area The Greater Los Angeles Area consists of the merging of several distinct central cities including Los Angeles Santa Ana Riverside and San Bernardino. This area is also often referred to simply as Southern California or colloquially as Socal (a larger region which tends to include San Diego). Baltimore-Washington Area The traditionally separate metropolitan areas of Baltimore and Washington D.C. have shared suburbs and a continuous urbanization between the two central cities (Baltimore-Washington metropolitan area). San DiegoTijuana The largest conurbation between the United States and Mexico San DiegoTijuana includes the two countries' busiest border crossing and a shared economy. 10 Chicago-Milwaukee Two major metropolitan areas (Greater Milwaukee and Greater Chicago) that are linked through several midsized suburban and urban cities mainly Racine Kenosha Waukegan Buffalo Grove Des Plaines and the rest of the Northern Chicago suburbs between Chicago IL and Milwaukee WI. Dallas-Fort Worth Three large cities Dallas Fort Worth and Arlington make up this area. Each city is linked by touching city limits or suburbs. This area is also commonly known as the Metroplex and is included in the emerging megalopolis known as the Texas Triangle. Detroit-Windsor The major U.S. city of Detroit Michigan lies immediately across the Detroit River from Windsor Ontario in Canada. In many respects--economically historically culturally socially and of course geographically--Windsor is more a part of Metro Detroit than of Ontario. The two cities and their surrounding suburbs are commonly referred to collectively as the Detroit-Windsor area. The Detroit-Windsor border is the the largest commercial border crossing in North America and the busiest between the two countries. With a combined total population of nearly six million Detroit-Windsor is the world's largest trans-border metropolitan area (since Hong Kong was returned to the Chinese in 1997). See also Look up conurbation in Wiktionary the free dictionary. Amalgamation (politics) Combined Statistical Area Consolidated city-county Ecumenopolis Ekistics Globalization List of metropolitan areas by population Largest cities of the world Megacity Megalopolis Metropolis Suburbs The Sprawl Transborder agglomeration Urban sprawl Urban agglomeration References conurbation Dictionary Definition of conurbation Encyclopedia.com: FREE Online Dictionary Peter Hall Cities of Tomorrow 2002 ISBN 0631232524 a b Vision of Britain article on use of this and similar terms "Portrait of the Canadian Population in 2006: Subprovincial population dynamics Greater Golden Horseshoe". Statistics Canada 2006 Census of Population. 2007-03-13. http://www12.statcan.ca/english/census06/analysis/popdwell/subprov4.cfm#ggh. Retrieved 2007-03-13.  Baker Deane-Parker (15 September 2010). "South Africa's threat environment: a guide for the National Planning Commission" (in English). African Security Review (Pretoria: Routledge) 19 (3): 5464. doi:10.1080/10246029.2010.519878. ISSN 1024-6029. http://www.informaworld.com/smpp.title-contentt919213844. Retrieved 09 May 2011. ""...what military force would relish tackling Johannesburg Ekurhuleni (the East Rand) and Tshwane (greater Pretoria) which will by 2015 be a single polycentric urban region..."".  a b c d The UKs major urban areas Office for National Statistics a b KS01 Usual resident population Census 2001 Key Statistics for urban areas Office for National Statistics a b KS01 Usual resident population Key Statistics for Settlements and Localities Scotland General Register Office for Scotland "Annual Estimates of the Population of Combined Statistical Areas: April 1 2000 to July 1 2007" (CSV). 2007 Population Estimates. United States Census Bureau Population Division. 2008-03-27. http://www.census.gov/population/estimates/metrogeneral/2007/CSA-EST2007-alldata.csv. Retrieved 2008-05-26.  Loucky James ed. Transboundary policy challenges in the Pacific border regions of North America. University of Calgary Press. p. 8. ISBN 1-55238-223-0. http://books.google.com/booksidKDc2r0SC5PIC&lpgPA8&dqtijuana%20san%20diego%20largest%20conurbation&pgPA8#vonepage&qtijuana%20san%20diego%20largest%20conurbation&ffalse. Retrieved February 19 2011.  Further reading Patrick Geddes - "Cities In Evolution" Edward Soja - "Postmetropolis"