Географические единицы для проведения переписи населения

Geographic region defined for the purpose of taking a census

A census tract, census area, census district or meshblock is a geographic region defined for the purpose of taking a census. Sometimes these coincide with the limits of cities, towns or other administrative areas In the United States, census tracts are subdivided into block groups and census blocks. In Canada they are divided into dissemination areas. In the U. S., census tracts are "designed to be relatively homogeneous units with respect to population characteristics, economic status, and living conditions" and "average about 4,000 inhabitants".

The Brazilian Institute of Geography and Statistics uses the term census sector (setor censitário). As of the 2010 Census, there were approximately 314,000 sectors in Brazil.

In 1999 in France, in order to prepare for the dissemination of the 1999 French population census, INSEE (Institut national de la statistique et des études économiques) developed a system for dividing the country into units of equal size, known as IRIS2000, but now known simply as 'IRIS'. The acronym stands for 'Ilots Regroupés pour l'Information Statistique' (‘aggregated units for statistical information') and the 2000 in the name referred not only to the upcoming millennium year but to the target size of 2,000 residents per basic unit. Since 1999, IRIS has represented the fundamental unit for dissemination of infra municipal data in France and its overseas departments and regions. Towns with more than 10,000 inhabitants, and a large proportion of towns with between 5,000 and 10,000 inhabitants, are divided into several IRIS units. France is composed of around 16,100 IRIS in total, of which 650 are in the overseas departments. Beginning from the 2011 census, the CSO website has made available "Small Area Population Statistics" (SAPS) for each "small area", a subdivision of an electoral division (ED) defined by Ordnance Survey Ireland constrained by natural landscape features. A small area has a minimum of 65 and average of 90 households. The 2016 census also provides the population of each of 50,117 townlands, except those with a population of one sex or two people. This data has since been published online.

In New Zealand census tracts are known as meshblocks, or mesh blocks, and are defined by Statistics New Zealand as being "the smallest geographic unit for which statistical data is collected and processed by Statistics New Zealand". It is a defined area, varying in size from part of a city block to large areas of rural land. Each of these borders another to form a network covering the whole country including inlets and coasts, and extending out to the 200 mile economic zone. Meshblocks are added together to "build up" larger geographic areas such as area units and urban areas. They are also used to draw up and define New Zealand electorates and local authority boundaries. and Oxford was divided into 48 tracts with an average population of 2,645 each. The Registrar General, however, opted for enumeration districts containing less than 1,000 people on average, rather than adopting census tracts. Census tracts have, however, been constructed and used by British demographers. The Office for National Statistics now uses enumeration districts only for the collection of data, with output areas used as the base unit in census releases.