Abstract
El Dorado County, California.The TIGER/Line Files are shapefiles and related database files (.dbf) that are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line File is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. Census Blocks are statistical areas bounded on all sides by visible features, such as streets, roads, streams, and railroad tracks, and/or by nonvisible boundaries such as city, town, township, and county limits, and short line-of-sight extensions of streets and roads. Census blocks are relatively small in area; for example, a block in a city bounded by streets. However, census blocks in remote areas are often large and irregular and may even be many square miles in area. A common misunderstanding is that data users think census blocks are used geographically to build all other census geographic areas, rather all other census geographic areas are updated and then used as the primary constraints, along with roads and water features, to delineate the tabulation blocks. As a result, all 2010 Census blocks nest within every other 2010 Census geographic area, so that Census Bureau statistical data can be tabulated at the block level and aggregated up to the appropriate geographic areas. Census blocks cover all territory in the United States, Puerto Rico, and the Island Areas (American Samoa, Guam, the Commonwealth of the Northern Mariana Islands, and the U.S. Virgin Islands). Blocks are the smallest geographic areas for which the Census Bureau publishes data from the decennial census. A block may consist of one or more faces.
Originator
Purpose
2010 Census Blocks for El Dorado County. In order for others to use the information in the Census MAF/TIGER database in a geographic information system (GIS) or for other geographic applications, the Census Bureau releases to the public extracts of the database in the form of TIGER/Line Shapefiles.
Contact Person
Joe Concannon
Sacramento Area Council of Governments (SACOG)
1415 "L" Stree #300
Sacramento
CA, 95814
Phone: 916-321-9000
Email: jconcannon@sacog.org
Coordinate System
Projected:
NAD_1983_StatePlane_California_II_FIPS_0402_Feet
Geographic:
GCS_North_American_1983
Attribute
| Name
| | Description
|
| OBJECTID
| |
Internal feature number.
|
| STATEFP10
| |
2010 Census state Federal Information Processing Standards
(FIPS) codes
|
| COUNTYFP10
| |
2010 Census county Federal Information Processing Standards
(FIPS) code
|
| TRACTCE10
| |
2010 Census census tract code
|
| BLOCKCE10
| |
2010 Census tabulation block number
|
| GEOID10
| |
Unique Census Geography Identification Number which combines the State, County, Tract, and Block codes. Can be used to join data to TIGER .shp files.
|
| NAME10
| |
2010 Census tabulation block name; a concatenation of "Block",
and the current tabulation block number
|
| MTFCC10
| |
MAF/TIGER feature class code
|
| UR10
| |
2010 Census urban/rural indicator
|
| UACE10
| |
2010 Census urban area code
|
| FUNCSTAT10
| |
2010 Census functional status
|
| ALAND10
| |
2010 Census land area (square meters)
|
| AWATER10
| |
2010 Census water area (square meters)
|
| INTPTLAT10
| |
2010 Census latitude of the internal point
|
| INTPTLON10
| |
2010 Census longitude of the internal point
|
| Shape
| |
Feature geometry.
|
| Shape.area
| |
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| Shape.len
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