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UA Census County Subdivisions, 1990 - South Carolina
- Identification Information
- Data Quality Information
- Spatial Data Organization Information
- Spatial Reference Information
- Entity and Attribute Information
- Distribution Information
- Metadata Reference Information
- Identification Information
- Citation
- Originator
- U.S. Department of Commerce, Bureau of the Census, Geography Division
- Publication Date
- 2002
- Title
- UA Census County Subdivisions, 1990 - South Carolina
- Edition
- UA Census 2000
- Geospatial Data Presentation Form
- vector digital data
- Collection Title
- TIGER/Line Files, UA Census 2000
- Publication Information
- Online Linkage
- https://hgl.harvard.edu/catalog/harvard-tg00scccd
- Abstract
- This datalayer displays County Subdivisions for the state, based on legal and statistical entities established on January 1, 1990. County subdivisions are the primary divisions of counties and their statistical equivalents for the reporting of decennial census data. They include: Census County Divisions; Census Sub-areas; Minor Civil Divisions, and Unorganized Territories. The TIGER/Line files contain a 5-character numeric FIPS code field for county subdivisions. The Census Bureau has established Census County Divisions (CCDs) for South Carolina. Legal Entities: Minor Civil Divisions (MCDs) MCDs are the primary governmental or administrative divisions of a county in many states. MCDs represent many different kinds of legal entities with a wide variety of governmental and/or administrative functions. MCDs are variously designated as American Indian reservations, assessment districts, boroughs, election districts, gores, grants, locations, magisterial districts, parish governing authority districts, plantations, precincts, purchases, road districts, supervisor's districts, towns, and townships. The U.S. Census Bureau recognizes MCDs in 28 states, Puerto Rico, and the Island Areas. The District of Columbia has no primary divisions, and the District of Columbia is considered equivalent to an MCD for statistical purposes. - In some states, all or some incorporated places are not part of any MCD. These places also serve as primary legal subdivisions and have a unique FIPS MCD code that is the same as the FIPS place code. The TIGER/ Line files will show the same FIPS 55 code in the county subdivision field and the place field. In other states, incorporated places are part of the MCDs in which they are located, or the pattern is mixed; some incorporated places are independent of MCDs and others are included within one or more MCDs. - The MCDs in 12 states (Connecticut, Maine, Massachusetts, Michigan, Minnesota, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont, and Wisconsin) also serve as general-purpose local governments that generally can perform the same governmental functions as incorporated places. The U.S. Census Bureau presents data for these MCDs in all data products in which it provides data for places. - In New York and Maine, American Indian reservations (AIRs) exist outside the jurisdiction of any town (MCD) and thus also serve as the statistical equivalent of MCDs for purposes of data presentation. Statistical Entities: Census County Divisions (CCDs) CCDs are areas delineated by the U.S. Census Bureau, in cooperation with state officials and local officials for statistical purposes. CCDs have no legal function and are not governmental units. CCD boundaries usually follow visible features and in most cases, coincide with census tract boundaries. The name of each CCD is based on a place, county, or well-known local name that identifies its location. CCDs exist where: 1) There are no legally established minor civil divisions (MCDs). 2) The legally established MCDs do not have governmental or administrative purposes. 3) The boundaries of the MCDs change frequently. 4) The MCDs are not generally known to the public. Census Subareas Census subareas are statistical subdivisions of boroughs, city and boroughs, municipalities, and census areas, the statistical equivalent entities for counties in Alaska. The state of Alaska and the U.S. Census Bureau cooperatively delineate the census subareas to serve as the statistical equivalents of MCDs. Census subareas were first used in the 1980 census. Unorganized Territories (UTs) The U.S. Census Bureau defines unorganized territories in 10 minor civil division (MCD) states where portions of counties are not included in any legally established MCD or incorporated place. The U.S. Census Bureau recognizes such separate pieces of territory as one or more separate county subdivisions for census purposes. It assigns each unorganized territory a descriptive name, followed by the designation "unorganized territory" and a county subdivision code. Unorganized territories were first reported in the 1960 census. The U.S. Census Bureau assigns a default county subdivision code of 00000 in some coastal and Great Lakes water where county subdivisions do not extend into the Great Lakes or out to the three-mile limit.
- Purpose
- This layer is intended for researchers, students, and policy makers for reference and mapping purposes, and may be used for basic applications such as viewing, querying, and map output production. This layer will provide a basemap for layers related to socio-political anaylsis, or to support graphical overlays and analysis with other spatial data. More advanced user applications may focus on demographics, urban and rural land use planning, socio-economic analysis and related areas (including defining boundaries, managing assets and facilities, integrating attribute databases with geographic features, spatial analysis, and presentation output.)
- Supplemental Information
- While the primary legal divisions of most states are termed "counties," in Louisiana, these divisions are know as "parishes." In Alaska, which has no counties, the statistically equivalent entities are the organized "boroughs," "city and boroughs," "municipality," and "census areas;" the latter are delineated cooperatively for statistical purposes by the State of Alaska and the U.S. Census Bureau. In four states (Maryland, Missouri, Nevada, and Virginia), there are one or more incorporated places that are independent of any county organization and thus constitute primary divisions of their states. These incorporated places are known as "independent cities" and are treated as statistically equivalent entities for purposes of data presentation. The District of Columbia has no primary divisions, and the entire area is considered a statistically equivalent entity for purposes of data presentation. The UA Census 2000 TIGER/Line files are extracts of selected geographic and cartographic information from the Census TIGER (Topologically Integrated Geographic Encoding and Referencing) database. The geographic coverage for a single TIGER/Line file is a county or statistical equivalent entity, with the coverage area based either on January 1, 2000 or January 1, 1990 legal boundaries. The Census TIGER database represents a seamless national file with no overlaps or gaps between parts. However, each county-based TIGER/Line file is designed to stand alone as an independent data set or the files can be combined to cover the whole nation and its territories. The UA Census 2000 TIGER/Line files consist of line segments representing physical features and governmental and statistical boundaries. The boundary information in the TIGER/Line files are for statistical data collection and tabulation purposes only; their depiction and designation for statistical purposes does not constitute a determination of jurisdictional authority or rights of ownership or entitlement. The files contain information distributed over a series of record types for the spatial objects of a county. There are 17 record types, including the basic data record, the shape coordinate points, and geographic codes that can be used with appropriate software to prepare maps. Other geographic information contained in the files includes attributes such as feature identifiers/census feature class codes (CFCC) used to differentiate feature types, address ranges and ZIP Codes, codes for legal and statistical entities, latitude/longitude coordinates of linear and point features, landmark point features, area landmarks, key geographic features, and area boundaries. The UA Census 2000 TIGER/Line data dictionary contains a complete list of all the fields in the 17 record types. NOTE: Portions of this metadata file have been copied directly from Census documentation. For additional information on this or other layers in the UA Census 2000 TIGER dataset please consult the U.S. Census Bureau's technical documentation at: http://www.census.gov/geo/www/tiger/tigerua/ua2ktgr.pdf
- Temporal Extent
- Currentness Reference
- ground condition
- Time Instant
- 19900101
- Bounding Box
- West
- -83.353019
- East
- -78.5410869987413
- North
- 35.21554
- South
- 32.037444
- ISO Topic Category
- boundaries
- Theme Keyword
- Census
- Administrative divisions
- Boundaries
- Theme Keyword Thesaurus
- LCSH
- Theme Keyword
- County Subdivisions
- Theme Keyword Thesaurus
- None
- Place Keyword
- South Carolina
- Place Keyword Thesaurus
- GNIS
- Temporal Keyword
- Access Restrictions
- None
- Use Restrictions
- For educational, non-commercial use only. TIGER, TIGER/Line, and Census TIGER are trademarks of the Bureau of the Census. Although this data set has been developed by the U.S. Census Bureau, no warranty expressed or implied is made by the Bureau as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the Bureau in the use of this data, or related materials.
- Status
- Complete
- Maintenance and Update Frequency
- Datalayers derived from TIGER/Line files are extracted from the Census TIGER data base when needed for geographic programs required to support the census and survey programs of the Census Bureau. No changes or updates will be made to the UA Census 2000 TIGER/Line files.
- Point of Contact
- Contact Organization
- U.S. Department of Commerce, Bureau of the Census, Geography Division
- Delivery Point
- 8903 Presidential Pkwy, Room 303 WP I
- Delivery Point
- Bureau of the Census
- Delivery Point
- 4700 Silver Hill Road, Stop 7400
- City
- Upper Marlboro
- City
- Washington
- State
- Maryland
- State
- District of Columbia
- Postal Code
- 20772
- Postal Code
- 20233-7400
- Country
- USA
- Country
- USA
- Contact Telephone
- 1-301-457-1128
- Contact Facsimile Telephone
- 1-301-457-4710
- Contact Electronic Mail Address
- tiger@census.gov
- Hours of Service
- Monday through Friday 8:30 A.M. to 4:30 P.M. EST-USA
- Credit
- U.S. Department of Commerce, Bureau of the Census, Geography Division.
- Native Data Set Environment
- Microsoft Windows NT Version 4.0 (Build 1381) Service Pack 6; ESRI ArcCatalog 8.2.0.700
- Collection
- Originator
- U.S. Department of Commerce, Bureau of the Census, Geography Division
- Publication Date
- 2002
- Title
- TIGER/Line Files, UA Census 2000
- Edition
- UA Census 2000
- Publication Information
- Publication Place
- Washington, DC
- Publisher
- U.S. Department of Commerce, Bureau of the Census, Geography Division
- Data Quality Information
- Attribute Accuracy Report
- Topological Properties The attribute accuracy of the TIGER/Line files is as precise as the source used during the creation or update of the Census TIGER database. Accuracy statements on the Census TIGER database are based on deductive estimates; no specific field tests for attribute accuracy have been conducted on the files. However, updates or corrections resulting from normal U.S. Census Bureau field operations are entered into the Census TIGER database. In addition, quality checks are conducted to verify clerical transcription of data from source materials. Based on past experience, attribute codes match the source materials with less than a two-percent error. The feature network of complete chains (as represented by Record Types 1 and 2) is complete for census purposes. Data users should be aware that on occasion they might not be able to trace a specific feature by name or by census feature class code (CFCC) as a continuous line throughout the TIGER/Line files without making additional edits. For example, State Highway 32 may cross the entire county. The TIGER/Line files will contain complete chains in the file at the location of State Highway 32, but the complete chains may individually have one of a collection of local names such as S Elm Street, or Smallville Highway, with or without State Highway 32 as an alternate. The most frequent CFCC for a state highway is A21, but the complete chains at the location of State Highway 32 may have a variety of class codes such as A01, A41, or A21. Recent edits have reduced this problem, but not eliminated it. Boundaries and Geographic Entity Codes The U.S. Census Bureau collects and tabulates information for both legal and statistical entities. Record Type 1 mainly identifies the boundaries and codes for the legal entities reported to the U.S. Census Bureau to be legally in effect as of the Census 2000 Boundary and Annexation Survey. Record Types 3 and A generally contain the 1990 census tabulation geographic boundaries and codes for those entities. Most legal boundaries are based on the annotations made by local officials in response to the U.S. Census Bureau's Boundary and Annexation Surveys. The boundary information in the TIGER/Line files are for statistical data collection and tabulation purposes only; their depiction and designation for statistical purposes does not constitute a determination of jurisdictional authority or rights of ownership or entitlement. Local data users generally define and delineate statistical entities following U.S. Census Bureau guidelines. However, there are several exceptions: - The U.S. Census Bureau defines Urbanized Areas (UAs) based strictly on technical considerations. USGS edited the FIPS 55 file to ensure alphabetical sorting and data consistency. As a result, changes were made to the FIPS 55 codes and related class codes. These changes, plus codes for new Census 2000 entities, appear in Record Type C. Other attribute data in the TIGER/Line files were gathered from many sources. The U.S. Census Bureau's staff linked the attribute information to the spatial framework of features. Most procedures for gathering the needed attributes were clerical. The quality of these attributes was ensured by various tests conducted before, during, and after the time that the attribute information was entered into the Census TIGER database. Tests included source material selection and evaluation checks, quality control checks on staff work, independent reviews by local and tribal leaders of maps produced from the Census TIGER database, and staff reviews of computer-performed operations. - The U.S. Census Bureau defines ZIP Code Tabulation Areas (ZCTAs) through an automated process utilizing addresses in the TIGER database and the Master Address File (MAF). - State Departments of Education delineate school districts. - The designated liaison for the Redistricting Data Program supplies Voting Districts (VTDs) and State Legislative Districts (SLDs). - Metropolitan Planning Organizations or State Departments of Transportation define Traffic Analysis Zones (TAZs). The USGS maintains the file that is published as FIPS 55. The U.S. Census Bureau uses the file for coding American Indian/Alaska Native Areas, county subdivisions, consolidated cities, places, and sub-MCDs. Address Ranges and ZIP Codes The conversion from the Geographic Base File/Dual Independent Map Encoding (GBF/DIME)-Files to the TIGER format involved neither verification of previously existing address ranges nor any significant updates or corrections. Prior to the release of the 1992 TIGER/Line files, the address ranges for an area were generally the same as those in the corresponding 1980 GBF/DIME-File. The 1992 TIGER/Line files included ACF address ranges for existing and new features identified during census operations. Address ranges and ZIP Codes were verified and coverage extended for Census 2000 through the use of the Master Address File (MAF). The MAF is closely linked to the Census TIGER database. Local address lists and addresses from the U.S. Postal Service supplement the MAF. Through an automated matching process, addresses in the MAF were compared to existing address ranges in the Census TIGER database creating or modifying the TIGER address ranges where necessary. Feature Identifiers A national consistency review of all feature names in the Census TIGER database was performed by running a revised name standardizing operation on all feature identifiers. An additional benefit was the removal of nonstandard characters and punctuation from the names. To improve accuracy, road names in the Census TIGER database were compared with street names in the ZIP+4 file from the US Postal Service. Errors in feature directionals or feature types were corrected in the Census TIGER database.
- Logical Consistency Report
- Node-line-area relationships satisfy topological requirements. These requirements include the following: - Complete chains must begin and end at nodes. - Complete chains must connect to each other at nodes. - Complete chains do not extend through nodes. - Left and right polygons are defined for each complete chain element and are consistent for complete chains connecting at nodes. - Complete chains representing the limits of a file are free from gaps. The U.S. Census Bureau performed automated tests to ensure logical consistency and limits of file. Some polygons in the TIGER/Line files are so small that the polygon internal point has been manually placed on a node that defines the polygon perimeter. The U.S. Census Bureau uses it's internally developed Geographic Update System to enhance and modify spatial and attribute data in the Census TIGER database. The Census TIGER database has two generations of currency in geographic areas. These are the 1990 census areas and the Census 2000 areas. The location, type, and number of areas affect the boundaries of geographic areas. To prepare for Census 2000, those features used only as boundaries in the 1980 census were deleted. The deletions lowered the overall count of complete chains and polygons. Standard geographic codes, such as FIPS codes for states, counties, municipalities, and places, are used when encoding spatial entities. The U.S. Census Bureau performed spatial data tests for logical consistency of the codes during the compilation of the original Census TIGER database files. Most of the codes themselves were provided to the U.S. Census Bureau by the U.S. Geological Survey (USGS), the agency responsible for maintaining FIPS 55.
- Completeness Report
- Data completeness of the TIGER/Line files reflects the contents of the Census TIGER data base at the time the TIGER/Line files (UA 2000 version) were created. The GBF/DIME-Files and the USGS's DLG were the two main sources of spatial attribute data. Data for a given category contain attribute codes that reflect the information portrayed on the original source. The TIGER/Line files also use the U.S. Census Bureau's internal coding scheme which in some cases parallels the FIPS codes. The feature network of complete chains is complete for census purposes. For the 1990 census and Census 2000, census enumerators identified new and previously unreported street features for the entire nation during a series of decennial census operations. In some areas, local officials reviewed the census maps and identified new features and feature changes. The TIGER/Line files contain limited point and area landmark data. The enumerator updates for decennial censuses do not stress landmark features. Computer file matching and automated updates from the Economic and Agriculture censuses added landmarks and key geographic locations (KGLs).
- Horizontal Positional Accuracy Report
- The U.S. Census Bureau's mission to count and profile the Nation's people and institutions does not require very high levels of positional accuracy in its geographic products. Its files and maps are designed to show only the relative positions of elements. Coordinates in the TIGER/Line files are in decimal degrees and have six implied decimal places. The positional accuracy of these coordinates is not as great as the six decimal places suggest. The positional accuracy varies with the source materials used, but at best meets the established National Map Accuracy standards (approximately + /- 167 feet) where 1:100,000-scale maps from the USGS are the source. The U.S. Census Bureau cannot specify the accuracy of feature updates added by its field staff or of features derived from the GBF/DIME-Files or other map or digital sources. Thus, the level of positional accuracy in the TIGER/Line files is NOT suitable for high-precision measurement applications such as engineering problems, property transfers, or other uses that might require highly accurate measurements of the earth's surface. Despite the fact that TIGER/Line data positional accuracy is not as high as the coordinate values imply, the six-decimal place precision is useful when producing maps. This precision allows you to place features that are next to each other on the ground in the correct position, relative to each other, on the map without overlap.
- Lineage
- Source
- Originator
- U.S. Department of Commerce, Bureau of the Census, Geography Division
- Publication Date
- Unpublished Material
- Title
- Census TIGER database
- Edition
- UA Census 2000
- Source Scale Denominator
- 100000
- Type of Source Media
- online
- Source Temporal Extent
- Time Period Information
- Single Date/Time
- Calendar Date
- 2000
- Source Currentness Reference
- Date the file was made available to create TIGER/Line File extracts.
- Contribution
- Selected geographic and cartographic information (line segments) from the Census TIGER database.
- Spatial Data Organization Information
- Direct Spatial Reference Method
- Vector
- Point and Vector Object Information
- SDTS Terms Description
- SDTS Point and Vector Object Type
- G-polygon
- Point and Vector Object Count
- 307
- Spatial Reference Information
- Horizontal Coordinate System Definition
- Geographic
- Latitude Resolution
- 0.000000
- Longitude Resolution
- 0.000000
- Geographic Coordinate Units
- Decimal degrees
- Geodetic Model
- Horizontal Datum Name
- North American Datum of 1927
- Ellipsoid Name
- Clarke 1866
- Semi-major Axis
- 6378206.400000
- Denominator of Flattening Ratio
- 294.978698
- Vertical Coordinate System Definition
- Altitude System Definition
- Altitude Resolution
- 1.000000
- Altitude Encoding Method
- Explicit elevation coordinate included with horizontal coordinates
- Entity and Attribute Information
- Entity Type
- Entity Type Label
- UA Census County Subdivisions, 1990 - South Carolina
- Entity Type Definition
- ESRI Shapefile. Polygons represent feature areas
- Entity Type Definition Source
- ESRI, Department of Commerce, Census Bureau
- Attributes
- GIST_ID
- Internal Feature Identifier
- Definition Source
- Department of Commerce, ESRI
- COUNTY
- FIPS State+County Code (Federal Information Processing StandardsNational Institute of Standards and Technology)
- Definition Source
- Department of Commerce, Census Bureau
- COUSUB90
- FIPS 55 Code (County Subdivision), 1990 (FIPS Pub 55National Institute of Standards and Technology)
- Definition Source
- Department of Commerce, Census Bureau
- NAME
- County Subdivision Geographic Place Name
- Definition Source
- Department of Commerce, Census Bureau
- SHAPE
- Feature geometry. (Coordinates defining the features.)
- Definition Source
- ESRI
- SHAPE.AREA
- Area of feature in square coverage units
- Definition Source
- Computed
- SHAPE.LEN
- Feature length in map units
- Definition Source
- Computed
- SHAPE.FID
- Internal feature number. (Sequential unique whole numbers that are automatically generated.)
- Definition Source
- ESRI
- Distribution Information
- Format Name
- Shape
- Distributor
- Harvard Geospatial Library
- Name
- Metadata Reference Information
- Metadata Date
- 20030722
- Metadata Contact
- Contact Information
- Contact Person Primary
- Contact Person
- Contact Organization
- Harvard Geospatial Library
- Contact Address
- Address
- Harvard University Library
- Address
- Office For Information Systems
- Address
- 1280 Massachusetts Avenue
- City
- Cambridge
- State or Province
- MA.
- Postal Code
- 02138
- Country
- USA
- Contact Voice Telephone
- 617-495-2417
- Contact Facsimile Telephone
- 617-496-0440
- Contact Electronic Mail Address
- hgl_ref@hulmail.harvard.edu
- Metadata Standard Name
- FGDC Content Standards for Digital Geospatial Metadata
- Metadata Standard Version
- FGDC-STD-001-1998
- Metadata Extensions
- Online Linkage
- http://www.esri.com/metadata/esriprof80.html
- Profile Name
- ESRI Metadata Profile
