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- There is currently no universal definition of what 'urban' means. The UN reports figures based on nationally defined urban shares. The problem, however, is that countries adopt very different definitions of urbanization. Not only do the thresholds of urban versus rural vary, but the types of metrics used also differ.
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Mar 10, 2020 · To facilitate international comparisons, a coalition of six international organizations developed a new global definition of cities, towns and semi-dense areas, and rural areas. On March 5th, the UN Statistical Commission endorsed the Degree of Urbanization as a recommended method for international comparisons.
- Urbanization Across The World Today
- How Urban Is The World?
- Urban Slum Populations
- Long-Run History of Urbanization
- How Do Living Standards Change as People Move to Urban areas?
- Definitions and Measurement
Share of population living in urban areas
How does the share of people living in urban areas vary between countries? In the chart shown below, we see the share of the population that is urbanized across the world. Across most high-income countries – across Western Europe, the Americas, Australia, Japan, and the Middle East – more than 80% of the population lives in urban areas. Across most upper-middle-income countries – in Eastern Europe, East Asia, North and Southern Africa, and South America – between 50% to 80% of people do. In m...
What we know about urban populations and why it matters
Before looking in more detail at the differences in estimates of urban populations, we should first clarify what we do know: 1. Globally more people live in urbanized settings than not (disputes in these figures are all above the 50% urban mark); 2. The broad distribution and density of where people live across the world (sometimes at very high resolution); 3. Although it can seem like our expanding cities take up a lot of land, only a bit more than 1% of global land is defined as built-up ar...
UN estimates: More than half of the world’s population live in urban areas
At first glance, this seems like a simple question to answer. Figures reported by the United Nations (UN) deliver a straightforward answer.3 In the chart here we see the share of the world's population living in urban and rural areas, extending from 1960.4This is based on nationally-collated census figures, combined with UN estimates where census data is unavailable. As of 1960, the rural segment constituted more than 60% of the population. By the year 2007, the distribution between urban and...
How is an urban area defined?
'What defines an urban area?' lies at the center of these debates. There is currently no universal definition of what 'urban' means. The UN reports figures based on nationally defined urban shares. The problem, however, is that countries adopt very different definitions of urbanization. Not only do the thresholds of urban versus rural vary, but the typesof metrics used also differ. Some countries use minimum population thresholds, others use population density, infrastructure development, emp...
Number of people living in urban slums
This map shows the total number of people living in urban slum households in each country.
Urbanization over the past 12,000 years
The recency of urbanization becomes even more pronounced when we look at trends for countries and regions over even longer timescales – the past 10,000 years. This is shown in the visualization here, derived from the work of the History Database of the Global Environment.11 As we see, urban living is a very recent development. For most of our history, humans lived in low-density, rural settings. Prior to 1000, it's estimated that the share of the world population living in urban settings did...
Populations urbanize as they get richer
In the chart, we show the relationship between the share of the population living in urban areas on the y-axis, and average income (gross domestic product per capita) on the x-axis. Here we see a strong relationship between urbanization and income: as countries get richer, they tend to become more urbanized. The link between urbanization and economic growth has been well documented.12 Urbanization is complex, however: there are many recognized benefits of urban settings (when developed succes...
Urban populations tend to have higher living standards
There are many examples — across broad areas of development — that suggest that, on average, living standards are higher in urban populations than in rural ones. Some examples include: 1. in nearly all countries electricity access is higher in urbanareas than in rural areas; 2. access to improved sanitation is higherin urban areas; 3. access to improved drinking water is higherin urban areas; 4. access to clean fuels for cooking and heating is higherin urban areas; 5. child malnutrition is lo...
Agricultural employment falls with urbanization
It would be expected that changing where populations live will have an impact on types of employment. Rural-urban migration has been empirically linked with the structural transformation process: as urban population shares increase, employment tends to shift from agriculture towards industry/manufacturing, or services.15 In the chart, we see the share of people employed who are in agriculture (y-axis) versus the share of the population living in urban areas (x-axis). Here, in general, we see...
How is an urban population defined?
There is no universal definition of what constitutes an 'urban area'. Definitions of an urban settlement vary widely across countries, both in terms of the metrics used to define them, and their threshold level. The UN World Urbanization Prospects (2018) database provides a downloadable list of underlying data sources and the statistical concepts used to define 'urban' by country.5 In the chart, we have mapped the minimum threshold level of the number of inhabitants in a settlement needed for...
How is a slum household defined?
UN-HABITAT defines a slum household as a group of individuals living under the same roof in an urban area who lack one or more of the following16: 1. Durable housing of a permanent nature that protects against extreme climate conditions. 2. Sufficient living space which means no more than three people sharing the same room. 3. Easy access to safe water in sufficient amounts at an affordable price. 4. 4. Access to adequate sanitation in the form of a private or public toilet shared by a reason...
How is urban density defined?
The density of a geographic area is measured on the basis of the average number of people per unit of area (for example, the number of people per square kilometer, km2). It's therefore calculated as the population divided by the land area for that given population. But what does urbandensity mean? Here, again, we encounter difficulty in agreeing on the standard boundary definition of what constitutes an urban area. The standard metric adopted (and encouraged) by the UN for urban density is th...
Urban and Rural. The Census Bureau’s urban-rural classification is a delineation of geographic areas, identifying both individual urban areas and the rural area of the nation. The Census Bureau’s urban areas represent densely developed territory, and encompass residential, commercial, and other non-residential urban land uses.
Sep 27, 2018 · In the chart here we see the total number of people defined as living in urban and rural areas, extending from 1960 to 2020. 6 This is based on nationally-collated census figures, combined with UN estimates where census data is unavailable.
The Degree of Urbanisation, a new global definition of cities, urban and rural areas. In its 51st session, the United Nations Statistical Commission endorsed the methodology for delineation of cities and urban and rural areas for international and regional statistical comparison purposes.
Because of national differences in the characteristics which distinguish urban from rural areas, the distinction between urban and rural population is not amenable to a single definition applicable to all countries.
Sep 1, 2021 · Urban issues such as access to public transport, poverty, access to green space, air pollution and population density differ between the city centre, the surrounding dense neighbourhoods, the adjacent suburbs and the rural areas inside a commuting zone.
