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Census Boundaries - 1970


Download Link: http://data.nconemap.gov/downloads/vector/cen70.zip
Abstract: The NC Center for Geographic Information and Analysis, using US Department of Commerce, Bureau of the Census data, developed the digital 1970 Census Boundaries/Population data file containing easily accessible population and housing counts for the state of North Carolina.
Purpose: This file was developed to enable a user to see population and housing statistics from the 1970 Census as a way of track population and housing counts over time. This data was created to assist governmental agencies and others in making resource management decisions through use of a Geographic Information System (GIS).
Supplemental Information: Mixed census units were used to develop this layer. For example, some counties contain census tracts and enumeration districts while others only contain census tracts. The identification numbers for each unit may not necessarily correspond to census statistical tapes. County boundaries depicted in these files are not consistent with other county boundary files used and distributed by CGIA. >system filename: cen70 file size = 2.9 mb > >Revisions and updates to this layer include: >2.) filename: cen701298 The December 1998 update to this layer >consisted of projecting the data from NAD27 datum, State Plane >projection, units of measure feet TO: NAD83 DATUM, State Plane >PROJECTION, UNITS OF MEASURE METERS. This was done to comply >with the NC Geographic Information Coordinating Council's >"Statement of Direction for North Carolina Corporate Geographic >Database Horizontal Reference, Datum and Unit of Measure". >This reprojecting was done in various ways depending on the >data type and content. Vector data was projected using the >'project' command in ESRI's Arc software and topology was >cleaned and built based on coverage needs. Raster data was >projected using ESRI's Grid module and various steps as applicable. >1.) filename: cen70794 July 1994 - (also archived as nc.cen70, >filename was change July 31, 1996, no data changed). >Due to discrepancies in population totals, the DEHNR-State Center >for Health Statistics, Environmental Statistics and GIS >Section reviewed the population totals and corrected >inaccuracies in July 1994. Due to funding constraints, the >previous file had only been thoroughly quality-controlled >within the Albemarle-Pamlico Estuarine Study Area.
Publication Date: 19981201
Originator: US Department of Commerce, Bureau of the Census
Publisher: US Department of Commerce, Bureau of the Census
Online Linkage: http://www.nconemap.gov
Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 1982
Ending Date: 199981201
Currentness Reference: Data creation and revision dates
Status:
Progress: Complete
Maintenance and Update Frequency: None planned
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: -84.423270
East Bounding Coordinate: -75.414124
North Bounding Coordinate: 36.617906
South Bounding Coordinate: 33.727025
Contact Electronic Mail Address: dataq@its.nc.gov
Contact Voice Telephone: 919-754-6580
Grid Coordinate System Name: State Plane Coordinate System 1983
Horizontal Datum Name: North American Datum of 1983
Planar Distance Units: meters
Ellipsoid Name: Geodetic Reference System 80
Attribute:
Attribute Label: OBJECTID
Attribute Definition: Internal feature number.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute Label: DISTRICT
Attribute Definition: 1970 Census identification code
Attribute Definition Source: US Dept. of Commerce, Bureau of the Census
Attribute Domain Values:
Unrepresentable Domain: Codes vary in length
Attribute Measurement Frequency: None planned
Attribute:
Attribute Label: LABEL1
Attribute Definition: Unique Comarc record# by county
Attribute Definition Source: US Dept. of Commerce, Bureau of the Census
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 0
Range Domain Maximum: 97
Attribute Measurement Frequency: None planned
Attribute:
Attribute Label: HOUSING
Attribute Definition: Housing count for district
Attribute Definition Source: US Dept. of Commerce, Bureau of the Census
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 0
Range Domain Maximum: 1E+05
Attribute Measurement Frequency: None planned
Attribute:
Attribute Label: FIPS
Attribute Definition: County Federal Processing Information Standard code
Attribute Definition Source: US Dept. of Commerce, Bureau of the Census
Attribute Domain Values:
Codeset Domain:
Codeset Name: Federal Processing Information Standard
Codeset Source: US Dept. of Commerce, Bureau of the Census
Attribute Measurement Frequency: None planned
Attribute:
Attribute Label: CITY
Attribute Definition: City and water body names
Attribute Definition Source: US Dept. of Commerce, Bureau of the Census
Attribute Domain Values:
Unrepresentable Domain: City and water names vary in length and number of words
Attribute Measurement Frequency: None planned
Attribute:
Attribute Label: POP_ACRE1970
Attribute Definition: Population per acre
Attribute Definition Source: CGIA
Attribute Domain Values:
Unrepresentable Domain: values differ
Attribute:
Attribute Label: SHAPE
Attribute Definition: Feature geometry.
Attribute Definition Source: ESRI
Attribute Domain Values:
Unrepresentable Domain: Coordinates defining the features.
Attribute:
Attribute Label: SHAPE.area
Attribute Definition: area in map units
Attribute Definition Source: CGIA
Attribute Domain Values:
Unrepresentable Domain: values differ
Attribute:
Attribute Label: SHAPE.len
Attribute Definition: Length of arc in coverage units
Attribute Definition Source: Software computed
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 0.313
Range Domain Maximum: 120,682.367
Attribute Units of Measure: meters
Attribute Measurement Resolution: 0.001
Attribute Measurement Frequency: As needed
Attribute:
Attribute Label: CEN70#
Attribute Definition: Internal feature number
Attribute Definition Source: Software computed
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 1
Range Domain Maximum: 13958
Attribute Measurement Frequency: As needed
Attribute:
Attribute Label: CEN70-ID
Attribute Definition: Arc internal identification number
Attribute Definition Source: User defined
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 1
Range Domain Maximum: 199
Attribute Measurement Frequency: As needed
Distribution Liability: NCCGIA is charged with the development and maintenance of NC OneMap and, in cooperation with other mapping organizations, is committed to offering its users accurate, useful, and current information. Although every effort has been made to ensure the accuracy of information, errors and conditions originating from physical sources used to develop this dataset may be reflected in the data supplied. The user must be aware of possible conditions and bear responsibility for the appropriate use of the information with respect to possible errors, original map scale, collection methodology, currency of data, and other conditions specific to certain data. NCCGIA does not support secondary distribution of this dataset without its current, compliant metadata record. The use of trade names or commercial products does not constitute their endorsement by NCCGIA or North Carolina State Government.
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