Census Tract - Subarea of a county or city containing an average of approximately 4,000 inhabitants that have statistically comparable population characteristics, economic status, and living conditions.
census tract
A small, statistical subdivision of a county that usually includes approximately 4,000 inhabitants but may include from 2,500 to 8,000 inhabitants.
Convert [Census tracts] to a grid. Ask Spatial Analyst to use the tract identifiers [tracts_id]. Join the other attributes to the grid table, too. Name this grid "Census tracts", too.
postal code
census tract name
forest stand identifier
road name
Geocoding
Geocoding = deriving implicit from explicit references ...
e.g. data on census tracts must be supported by digital information on locations of census tract boundaries
geography also allows data to be aggregated geographically, e.g. by merging data on individual cities into metropolitan regions ...
tax credit areas, census tracts, roads, schools, churches, recreation centers
14741 Governor Oden Bowie Drive, Upper Marlboro, MD 20772 - 301-952-3594
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Examples are provinces, lakes, census tracts and forest stands. ASCII American Standard Code for Information Interchange, ASCII is a set of codes for representing alphanumeric information (e.g., a byte with a value of 77 represents a capital M).
Census Tract: A small, permanent statistical subdivision of an area, normally with homogeneous characteristics.
Centerline: A line digitized along the center of a linear feature.
Centroid: The geometric center of a polygon.
While the company had argued that it had sold many policies to homeowners in majority African American zip codes, the analysis demonstrated that the company's best policies were clustered in largely white census tracts.
TIGER files contain street address ranges along lines and census tract/block boundaries. This descriptive data can be used to associate address information and census/demographic data with coverage features.
In the case of our vector analysis I also added a census tract polygon layer that covers the Austin, Texas area.
TIGER includes both land attributes such as roads, buildings, rivers, and lakes, as well as areas such as counties, census tracts, and census blocks.
1999 Placer County Poverty Population: Other Population Below Poverty Level by Census Tract 1999 Placer County Poverty Population: Native Hawaiian and Pacific Islander Population Below Poverty Level by Census Tract 1999 Placer County Poverty ...
Clipping Census Tract and FSA boundaries
Aggregating Enumeration Area Data to Census Tract and FSA levels
We regarded the selected PC-GIS as an excellent presentation vehicle with reasonably strong facilities for aggregating point data.
In the example above, each census tract has a row of bar charts, the height of each bar determined by the number of people having attained a certain level of education.
Extended attribute geographic data mode: geometric objects as above but with many attributes, such as census tract data sets; ...
Codes such as state, county, census tract, block group, and block are geographic boundaries used by industries and governments for all state, county, and federal surveys, analyses, and evaluations.
Census tract or even county.
The various street and parcel data files do not exactly overlay with U.S. Census tracts. The boundaries of the tracts are based on TIGER streets.
The TIGER files provide vector data for hydrography, transportation, political, and statistical areas (such as county, incorporated area, census tract, and census block).
This is especially useful when mapping areas, such as census tracts or counties, which vary greatly in size. On maps showing the number of people per census tract, the larger tracts might have more people than smaller ones.
Demographic summaries by census tracts can be generated and financial information for "comparables" can be plotted and cross-linked for a better understanding of market dynamics.
Geographic References: Geographic information contains either an explicit geographic reference, such as a latitude and longitude or national grid coordinate, or an implicit reference such as an address, postal code, census tract name, ...
Geographic information contains either an explicit geographic reference, such as latitude and longitude or state plane coordinate, or an implicit reference such as a rural address, postal code, census tract name, forest stand identifier, ...
For a database feature like census tract, attributes might include many demographic facts including total population, average income, and age.
(2) The summary of areas by one or more geographically defined zones (i.e., census tract, precinct, etc.) such that areas common to each other and those which have overlapping polygon areas are distinguished and summarized.
A homogeneous extent of the Earth bounded by one or more arc features or represented as a set of polygons. Examples: states, counties, lakes, land-use areas, and census tracts.
2. The size of a geographic feature measured in unit squares.
For example, a population attribute organized by census tract might be more accurately distributed by the overlay of water bodies, vacant land, and other land-use boundaries within which it is reasonable to infer that people do not live.
This is usually the home for most consumers. For a population group, an origin could be a census tract or a city. Origins are represented as nodes in a network coverage, as points in a point coverage, and as label points in a polygon coverage.
Area A closed figure (polygon) bounded by one or more lines enclosing a homogenous area and usually represented only in two dimensions. Examples are provinces, lakes, census tracts and forest stands.
For example, is the quality of road surface dependent on median household income per census tract? Or is the presence of salmon in a stream reach affected by the basal area per acre within a riparian management zone?
Lines represent objects that have length but are too narrow to be depicted as areas.
Parks, census tracts, postal codes, and trade areas are examples of polygon (or area) features.
 See also: Information, GIS, Geographic, Area, Map
  
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