Global trends Global urbanization has accelerated dramatically in recent decades. According to the
United Nations' World Urbanization Prospects 2025, 45% of the world's 8.2 billion people now live in cities (up from 20% in 1950), with 36% in towns and semi-urban areas, and only 19% in rural regions. The report projects that two-thirds of global population growth between 2025 and 2050 (nearly 3 billion people) will occur in urban areas, with the number of
megacities (populations over 10 million) reaching 33 in 2025, a quadrupling since 1975. Built-up land has expanded nearly twice as fast as population growth since 1975, increasing per capita urban land use from 44 m² to 63 m², driven mostly by economic and infrastructure demands. In the United States, cities of all sizes grew in 2024, with
Southern and
Western regions seeing the fastest rates (e.g.,
Princeton, Texas, at 30.6%), marking a reversal in
Northeast and
Midwest declines.
Australia Geoscience Australia defines a populated place as "a named settlement with a population of 200 or more persons". The
Committee for Geographical Names in Australasia used the term
localities for rural areas, while the
Australian Bureau of Statistics uses the term "urban centres/localities" for urban areas.
Bosnia and Herzegovina The
Agency for Statistics in Bosnia and Herzegovina uses the term "populated place""settled place" for rural (or urban as an administrative center of some municipality/city), and "municipality" and "city" for urban areas.
Bulgaria The Bulgarian Government publishes a National Register of Populated places (NRPP).
Canada The Canadian government uses the term "populated place" in the
Atlas of Canada, but does not define it.
Statistics Canada uses the term "
localities" for historically named locations.
Croatia The
Croatian Bureau of Statistics records population in units called
settlements (naselja).
India The Census Commission of
India has a special definition of
census towns.
Ireland The
Central Statistics Office (CSO) of
Ireland has had a special definition of
census towns. From the
2022 census of Ireland, the CSO introduced an urban geography unit called "
Built Up Areas" (BUAs).
Pakistan The
Pakistan Bureau of Statistics records population in units of settlements called
Tehsil – an administrative unit derived from the
Mughal era.
Russia , a town in
Republic of Karelia, Russia There are various
types of inhabited localities in Russia.
Sweden Statistics Sweden uses the term
localities (tätort) for various densely populated places. The common English-language translation is
urban areas.
United Kingdom The UK
Department for Communities and Local Government uses the term "urban settlement" to denote an
urban area when analysing census information. The
Registrar General for Scotland defines settlements as groups of one or more contiguous localities, which are determined according to
population density and
postcode areas. The Scottish settlements are used as one of several factors defining urban areas.
United States The
United States Geological Survey (USGS) has a
Geographic Names Information System that defines three classes of human settlement: •
Populated place −
place or geographic area with clustered or scattered
buildings and a permanent human
population (city, settlement, town, village). A populated place is usually not
incorporated and by definition has no legal boundaries. However, a populated place may have a corresponding "civil" record, the legal boundaries of which may or may not coincide with the perceived populated place. •
Census − a statistical area delineated locally specifically for the tabulation of Census Bureau data (census designated place, census county division, unorganized territory, various types of American Indian/Alaska Native statistical areas). •
Civil − a political division formed for administrative purposes (
borough,
county,
incorporated place,
municipio,
parish,
town,
township). Populated places may be specifically defined in the context of
censuses and be different from general-purpose administrative entities, such as
"place" as defined by the U.S. Census Bureau or
census-designated places. == Geospatial modeling ==