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32-517: The Los Angeles Department of City Planning divides the city into Area Planning Commission (APC) areas, each further divided into Community Plan areas (CPAs). The Central Los Angeles APC area is made up of the following six CPAs: Each CPA is divided by neighborhood council, though a neighborhood council can cover an area in more than one CPA. Neighborhoods within each CPA include the following: Central City CPA Central City North CPA Wilshire CPA Hollywood CPA Westlake CPA According to

64-498: A complete picture of Los Angeles neighborhoods, with no ambiguities, overlaps or missing pieces." The Times said that the Mapping L.A. project became the newspaper's "resource for neighborhood boundaries, demographics, crime and schools." The results as posted are searchable by address and ZIP code or by individual neighborhood. It noted that: The maps cover the 4,000 square miles [10,500 km ] of Los Angeles County — by far

96-716: A county. In unincorporated areas of the United States these are often arbitrary, except for coinciding with political lines . Census tracts represent the smallest territorial entity for which population data are available in many countries. 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

128-560: A map that identified 472 neighborhoods (in comparison to Mapping LA's 114 neighborhoods). Comparing Brightwell's map with the Mapping LA Project, Jenna Chandler, the editor of Curbed Los Angeles , wrote that Brightwell's map of 472 neighborhoods "looks more accurate than the neighborhood maps compiled by the Los Angeles Times. " Additionally, Elizabeth Fuller of The Larchmont Buzz said that Brightwell's map

160-557: 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 . British census tracts were first developed in

192-460: Is composed of around 16,100 IRIS in total, of which 650 are in the overseas departments. There are 3 types of IRIS unit in use: residential IRIS (pop. between 1,800 and 5,000), business IRIS (containing more than 1,000 employees) and miscellaneous IRIS (specific large zones which are sparsely inhabited and have large surface areas (leisure parks, ports, forests etc.). In the Republic of Ireland ,

224-694: The Los Angeles Times , beginning in 2009, to draw boundary lines for 158 cities and unincorporated places within Los Angeles County, California . It identified 114 neighborhoods within the City of Los Angeles and 42 unincorporated areas where the statistics were merged with those of adjacent cities. The project began in February 2009 with the posting online of the first version of boundary lines for 87 Los Angeles neighborhoods. The map

256-547: The 1940 Census . Prior to that time, census tract data were published as special tabulations. For the 1940 Census, the Census Bureau began publishing census block data for all cities with 50,000 or more people. Census block numbers were assigned, where possible, by census tract, but for those cities that had not yet delineated census tracts, ‘‘block areas’’ (called ‘‘block numbering areas’’ [BNAs] in later censuses) were created to assign census block numbers. Starting with

288-505: The 1960 Census , the Census Bureau assumed a greater role in promoting and coordinating the delineation, review, and update of census tracts. For the 1980 Census , criteria for BNAs were changed to make them more comparable in size and shape to census tracts. For the 1990 Census , all counties contained either census tracts or BNAs. Census 2000 was the first decade in which census tracts were defined in all counties. In addition,

320-604: The 2000 United States Census , Central Los Angeles had 836,638 residents in its 57.87 sq mi (149.9 km), including the uninhabited Griffith and Elysian parks, which amounted to 14,458 people per square mile. The densest neighborhood was Koreatown, and the least dense was Elysian Park. The four densest regions by population were in Central Los Angeles: Koreatown with 42,611 residents per square mile, followed by Westlake , 38,214; East Hollywood , 31,095, and Pico-Union , 25,352. About 81% of

352-530: The Central Statistics Office (CSO), established in 1949, organises the census. 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. Formerly main roads also constrained the borders but this

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384-559: The Mapping L.A. survey of the Los Angeles Times, the Central Los Angeles region constitutes 57.87 sq mi (149.9 km) and comprises twenty-three neighborhoods within the City of Los Angeles , as well as Griffith Park , the city's largest public park . In Mapping L.A., the Central Los Angeles region consists of: The following data applies to Central Los Angeles within the boundaries set by Mapping L.A.: In

416-493: 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

448-426: The Census Bureau increased the number of geographic areas whose boundaries could be used as census tract boundaries. It also allowed tribal governments of federally recognized American Indian tribes with a reservation and/or off-reservation trust lands to delineate tracts without regard to State and/or county boundaries, provided the tribe had a 1990 Census population of at least 1,000. Census tracts are also used by

480-564: The Census Bureau saw the need to standardize the delineation, review, and updating of census tracts and published the first set of census tract criteria in 1934. The goal of the criteria has remained unchanged; that is, to assure comparability and data reliability through the standardization of the population thresholds for census tracts, as well as requiring that their boundaries follow specific types of geographic features that do not change frequently. The Census Bureau began publishing census tract data as part of its standard tabulations beginning with

512-432: The Mapping L.A. Project, Downtown L.A. is just " downtown L.A. and Chinatown ; there's no Jewelry District or any of the others." Census tract 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 and several tracts commonly exist within

544-415: The area's population lived in rental units, while 19% lived in owner-occupied housing. Westlake was the neighborhood with the highest rental occupancy, and Hollywood Hills West had the lowest. The latter district also had the oldest population, and Pico-Union had the youngest. Hollywood Hills West also was the wealthiest neighborhood, and Downtown was the poorest. Hollywood Hills West was the neighborhood with

576-555: The census data in proportion to the relocated block's population. A first draft of 87 neighborhoods was released in February 2009. As the Times received input from their readers, they shifted where the neighborhood boundaries should be nearly 100 times. A final map of 114 neighborhoods was released in June 2009. With the release of the maps, the Times stated: We'll be the first to acknowledge that our map isn't perfect. No lines can capture

608-436: The cities). There were 3,409 EDs in 2016. Until 1911, the smallest reported unit was the townland in rural areas and the ward in urban areas. Subsequently, townland data was available on application to the CSO. All of the aforementioned are legally defined administrative units, although with no local government functions. From 1996 to 2006, "census enumeration areas" were included in data made available on request for areas within

640-460: The city into reasonably compact areas leaving no enclaves, gaps, overhangs or ambiguities. The project crafted neighborhood boundaries by merging together neighboring census tracts . However, census tract boundaries are not always consistent with traditional neighborhood boundaries. As the Times states: Census tracts are drawn by the U.S. Census Bureau and used for tabulating demographic information, including income and ethnicity. The shapes of

672-576: The city of Oxford . The Inter-University Census Tract Committee was formed in 1955 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. While tracts composed of enumeration districts were later developed, these were not extensively used. Census tracts have, however, been constructed and used by British demographers. The Office for National Statistics now uses enumeration districts only for

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704-632: The collection of data, with output areas used as the base unit in census releases. The concept of the census tract was first developed in the United States. In 1906, Walter Laidlaw originated the concept of permanent, small geographic areas as a framework for studying change from one decennial United States Census to another in neighborhoods within New York City . For the 1910 Census , eight cities—New York, Baltimore , Boston , Chicago , Cleveland , Philadelphia , Pittsburgh , and St. Louis —delineated census tracts (then termed ‘‘districts’’) for

736-873: The first time. No additional jurisdictions delineated census tracts until just prior to the 1930 Census , when an additional ten cities chose to do so. The increased interest in census tracts for the 1930 Census is attributed to the promotional efforts of Howard Whipple Green, who was a statistician in Cleveland, Ohio , and later the chairman of the American Statistical Association's Committee on Census Enumeration Areas. For more than 25 years, Green strongly encouraged local citizens, via committees, to establish census tracts and other census statistical geographic areas. The committees created by local citizens were known as Census Tract Committees, later called Census Statistical Areas Committees. After 1930,

768-408: The five county boroughs but not the 29 administrative counties . A census enumeration area was the area covered by a single enumerator, and had an average of 330 households. 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

800-664: The geographic diversity and demographic energy of Los Angeles. Not everyone agreed with the neighborhood boundaries the Times ultimately settled on. Elizabeth Fuller wrote in The Larchmont Buzz that "Many people who live in and represent their neighborhoods in various ways have objected to the Times’ designations for not following city-recognized borders, and for lumping many smaller neighborhoods into larger, more indistinct areas such as “Mid-Wilshire.” In 2017, cartographer Eric Brightwell of Pendersleigh and Sons, created

832-403: The largest percentage of residents holding a four-year academic degree, and Pico-Union had the lowest percentage. The ethnic breakdown in 2000 was Latino 46.1%; white 26.4%, Asian 16.2%; black 8.2%, and other 3.1%. Mid-Wilshire was the most ethnically diverse neighborhood and Pico-Union the least. Other regions of Los Angeles County Mapping L.A. Mapping L.A. is a project of

864-430: The most populous county in the nation — from the high desert to the coast. In 2009, there were an estimated 9.8 million residents, up from 9.5 million counted in the 2000 U.S. census, the basis for The Times' demographic analysis for each neighborhood and region. Unlike most other attempts at mapping L.A., this one follows a set of principles intended to make it visually and statistically coherent. It gathers every block of

896-596: 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

928-485: The tracts are frequently out of sync with the geographical, historic and socioeconomic associations that define communities. However, by using the tracts as building blocks, The Times was able to compile a statistical profile of communities, something other neighborhood boundaries do not offer. The Times further stated that after merging tracts, they then adjusted the boundary lines by moving individual city blocks from one census tract to another. That allowed them to adjust

960-520: Was a much more fine-grained view of “every L.A. neighborhood.” LAist reporter Tim Loc said that while Mapping L.A. provided "plenty of insightful information about individual neighborhoods...Brightwell takes it to the next level when it comes to breaking down the territories." Of Brightwell's map, Loc noted that Downtown L.A. is parsed out as the Historic Core , Bunker Hill , Skid Row , and Gallery Row among others. Brightwell notes that in

992-455: Was changed to increase data privacy . A small area has a minimum of 65 and average of 90 households . For the 2016 census there were 18,641 small areas. The 2016 census also provides the population of each of 50,117 townlands , except those with a population of one sex or two people. From 1926 to 2006, the smallest unit of public reporting was the electoral division (till 1996 called "district electoral divisions" in counties or " wards " in

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1024-547: Was then "redrawn with the help of readers who agreed or disagreed with our initial boundaries." The Times said: "After reviewing this collective knowledge, Times staffers adjusted more than 100 boundaries, eliminated some names and added others." The Times' database editor and the map project's coordinator, Doug Smith, along with researcher Maloy Moore, standardized the neighborhood boundaries "based on historical and anecdotal definitions, civic proclamations and reader commentary." "Thousands of city blocks" were converted "into

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