A town is a human settlement. Towns are generally larger than villages but smaller than cities, though the criteria to distinguish them vary considerably between different parts of the world.
A metropolitan area is a region consisting of a densely populated urban core and its less-populated surrounding territories, sharing industry, infrastructure, and housing. A metro area usually comprises multiple jurisdictions and municipalities: neighborhoods, townships, boroughs, cities, towns, exurbs, suburbs, counties, districts, states, and even nations like the eurodistricts. As social, economic and political institutions have changed, metropolitan areas have become key economic and political regions.
Population density is a measurement of population per unit area, or exceptionally unit volume; it is a quantity of type number density. It is frequently applied to living organisms, most of the time to humans. It is a key geographical term. In simple terms, population density refers to the number of people living in an area per square kilometre.
A census-designated place (CDP) is a concentration of population defined by the United States Census Bureau for statistical purposes only. CDPs have been used in each decennial census since 1980 as the counterparts of incorporated places, such as self-governing cities, towns, and villages, for the purposes of gathering and correlating statistical data. CDPs are populated areas that generally include one officially designated but currently unincorporated community, for which the CDP is named, plus surrounding inhabited countryside of varying dimensions and, occasionally, other, smaller unincorporated communities as well. CDPs include small rural communities, colonias located along the Mexico–United States border, and unincorporated resort and retirement communities and their environs.
The Greater Tokyo Area is the most populous metropolitan area in the world, consisting of the Kantō region of Japan as well as the prefecture of Yamanashi of the neighboring Chūbu region. In Japanese, it is referred to by various terms, one of the most common being Capital Region.
A hamlet is a small or very small human settlement. In different jurisdictions and geographies, a hamlet may be the size of a town, village or parish, or may be considered to be a smaller settlement or subdivision or satellite entity to a larger settlement. The word and concept of a hamlet have roots in the Anglo-Norman settlement of England, where the old French hamlet came to apply to small human settlements. In British geography, a hamlet is considered smaller than a village and distinctly without a church or other place of worship.
A geocode is a code that represents a geographic entity. It is a unique identifier of the entity, to distinguish it from others in a finite set of geographic entities. In general the geocode is a human-readable and short identifier.
The census geographic units of Canada are the administrative divisions defined and used by Canada's federal government statistics bureau Statistics Canada to conduct the country's quinquennial census. They exist on four levels: the top-level (first-level) divisions are Canada's provinces and territories; these are divided into second-level census divisions, which in turn are divided into third-level census subdivisions and fourth-level dissemination areas.
An urban area, or built-up area, is a human settlement with a high population density and infrastructure of built environment. Urban areas are created through urbanization and are categorized by urban morphology as cities, towns, conurbations or suburbs. In urbanism, the term contrasts to rural areas such as villages and hamlets; in urban sociology or urban anthropology it contrasts with natural environment. The creation of early predecessors of urban areas during the urban revolution led to the creation of human civilization with modern urban planning, which along with other human activities such as exploitation of natural resources led to a human impact on the environment. "Agglomeration effects" are in the list of the main consequences of increased rates of firm creation since. This is due to conditions created by a greater level of industrial activity in a given region. However, a favorable environment for human capital development would also be generated simultaneously.
An urban area or tätort in Sweden has a minimum of 200 inhabitants and may be a city, town or larger village. It is a purely statistical concept, not defined by any municipal or county boundaries. Larger urban areas synonymous with cities or towns for statistical purposes have a minimum of 10,000 inhabitants. The same statistical definition is also used for urban areas in the other Nordic countries.
A city proper is the area contained within city limits. A city proper is not limited to a city; it can describe the complete area of any locality that fits the definition. The United Nations defines the term as "the single political jurisdiction which contains the historical city centre."
Spatial analysis or spatial statistics includes any of the formal techniques which studies entities using their topological, geometric, or geographic properties. Spatial analysis includes a variety of techniques, many still in their early development, using different analytic approaches and applied in fields as diverse as astronomy, with its studies of the placement of galaxies in the cosmos, to chip fabrication engineering, with its use of "place and route" algorithms to build complex wiring structures. In a more restricted sense, spatial analysis is the technique applied to structures at the human scale, most notably in the analysis of geographic data.
The United States Census Bureau defines a place as a concentration of population which has a name, is locally recognized, and is not part of any other place. A place typically has a residential nucleus and a closely spaced street pattern, and it frequently includes commercial property and other urban land uses. A place may be an incorporated place or it may be a census-designated place (CDP). Incorporated places are defined by the laws of the states in which they are contained. The Census Bureau delineates CDPs. A small settlement in the open countryside or the densely settled fringe of a large city may not be a place as defined by the Census Bureau. As of the 1990 Census, only 26% of the people in the United States lived outside of places.
The following outline is provided as an overview of and topical guide to geography:
