2020 Census Block Groups for King County - Major Waterbody Features Removed

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: King County
Publication_Date: 20210812
Title:
2020 Census Block Groups for King County - Major Waterbody Features Removed
Edition: One
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: King County, WA
Publisher: King County
Other_Citation_Details: None
Online_Linkage: <http://www5.kingcounty.gov/gisdataportal/Default.aspx>
Description:
Abstract:
This layer contains a geographic identifier (GEO_ID_GRP) for each block group that is the key field for the data from censuses and surveys such as Decennial Census, Economic Census, American Community Survey, and the Population Estimates Program. Data from many of the Census Bureau’s surveys and censuses, are available at the Census Bureau’s public data dissemination website (https://data.census.gov/). All original TIGER/Line shapefiles and geodatabases with demographic data are available atThe TIGER/Line Shapefiles are extracts of selected geographic and cartographic information from the Census Bureau's Master Address File (MAF)/Topologically Integrated Geographic Encoding and Referencing (TIGER) Database (MTDB). The shapefiles include information for the fifty states, the District of Columbia, Puerto Rico, and the Island areas (American Samoa, the Commonwealth of the Northern Mariana Islands, Guam, and the United States Virgin Islands). The shapefiles include polygon boundaries of geographic areas and features, linear features including roads and hydrography, and point features. These shapefiles do not contain any sensitive data or confidential data protected by Title 13 of the U.S.C.Standard block groups are clusters of blocks within the same census tract that have the same first digit of their 4-character census block number (e.g., Blocks 3001, 3002, 3003 to 3999 in census tract 1210.02 belong to block group 3). Current block groups do not always maintain these same block number to block group relationships due to boundary and feature changes that occur throughout the decade. For example, block 3001 might move due to a change in the census tract boundary. Block groups delineated for the 2020 Census generally contain 600 to 3,000 people and a block group usually covers a contiguous area. Each census tract contains one or more block groups and block groups have unique numbers within census tract. Within the standard census geographic hierarchy, block groups never cross county or census tract boundaries, but may cross the boundaries of county subdivisions, places, urban areas, voting districts, congressional districts, and AIANNH areas.Block groups have a valid range of zero (0) through nine (9). Block groups beginning with a zero generally are in coastal and Great Lakes water and territorial seas. Rather than extending a census tract boundary into the Great Lakes or out to the 3-mile territorial sea limit, the Census Bureau delineated some census tract boundaries along the shoreline or just offshore. Full documentation: https://www2.census.gov/geo/pdfs/maps-data/data/tiger/tgrshp2020/TGRSHP2020_TechDoc.pdf
Purpose:
2020 United States Census Bureau block group census geography. Converted from Census Bureau TIGER/Line shapefiles and updated to meet King County GIS standards. Major water bodies - Puget Sound, Lake Washington, Lake Sammamaish, and Lake Union have been removed.
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -122.542001
East_Bounding_Coordinate: -121.063188
North_Bounding_Coordinate: 47.788361
South_Bounding_Coordinate: 47.073373
Keywords:
Theme:
Theme_Keyword_Thesaurus: Not applicable
Theme_Keyword: census
Place:
Place_Keyword_Thesaurus: Not applicable
Place_Keyword: Washington state
Place_Keyword: King County
Place_Keyword: WA
Place_Keyword: Pacific NW
Access_Constraints:
Access Constraint: Data is available on GIS Data Portal: <http://www5.kingcounty.gov/gisdataportal/Default.aspx>
Use_Constraints:
Use Constraint: King County data are made available with the understanding that they shall be used exclusively by the obtainer or his/her authorized agents. Digital products may not be reproduced or redistributed in any form or by any means without the express written authorization of King County.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: King County GIS Center
Contact_Person: Mary Ullrich
Contact_Position: GIS Specialist
Contact_Address:
Address_Type: mailing and physical
Address: 201 S Jackson St, Suite 225
City: Seattle
State_or_Province: WA
Postal_Code: 98104
Country: US
Contact_Voice_Telephone: 206-477-4420
Browse_Graphic:
Browse_Graphic_File_Name: <http://www5.kingcounty.gov/sdc/DataImages/blkgrp20_shore.jpg>
Browse_Graphic_File_Description:
JPG File of layer overlain on base of WA counties or local cities
Browse_Graphic_File_Type: JPG
Data_Set_Credit: United States Census Bureau
Native_Data_Set_Environment: Version 6.2 (Build 9200) ; Esri ArcGIS 10.8.1.14362

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Point_and_Vector_Object_Count: 1544

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: NAD 1983 HARN StatePlane Washington North FIPS 4601 Feet
Lambert_Conformal_Conic:
Standard_Parallel: 47.5
Standard_Parallel: 48.73333333333333
Longitude_of_Central_Meridian: -120.8333333333333
Latitude_of_Projection_Origin: 47.0
False_Easting: 1640416.666666667
False_Northing: 0.0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.00032808333333333333
Ordinate_Resolution: 0.00032808333333333333
Planar_Distance_Units: foot_us
Geodetic_Model:
Horizontal_Datum_Name: D North American 1983 HARN
Ellipsoid_Name: GRS 1980
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257222101

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: maint.GISC.blkgrp20_shore_area
Entity_Type_Definition: area data table
Entity_Type_Definition_Source: King County
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: STATEFP20
Attribute_Definition: Census Bureau code for a state.
Attribute_Definition_Source: King County
Attribute:
Attribute_Label: COUNTYFP20
Attribute_Definition: Census Bureau code for a county.
Attribute_Definition_Source: King County
Attribute:
Attribute_Label: TRACTCE20
Attribute_Definition: Census Bureau code for a tract.
Attribute_Definition_Source: King County
Attribute:
Attribute_Label: BLKGRPCE20
Attribute_Definition:
Census Bureau code for a block group. This is not unique and may appear again in other block groups in neighboring census tracts.
Attribute_Definition_Source: King County
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: 2
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: 3
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: 4
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: 5
Enumerated_Domain_Value_Definition_Source: King County
Attribute:
Attribute_Label: GEO_ID_GRP
Attribute_Definition:
Unique geographic identifier for a block group. Used as the key field to join tabular data from the Census Bureau.
Attribute_Definition_Source: King County
Attribute:
Attribute_Label: NAMELSAD20
Attribute_Definition_Source: King County
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Block Group 1
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: Block Group 2
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: Block Group 3
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: Block Group 4
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: Block Group 5
Enumerated_Domain_Value_Definition_Source: King County
Attribute:
Attribute_Label: MTFCC20
Attribute_Definition_Source: King County
Attribute:
Attribute_Label: FUNCSTAT20
Attribute_Definition_Source: King County
Attribute:
Attribute_Label: INTPTLAT20
Attribute_Definition_Source: King County
Attribute:
Attribute_Label: INTPTLON20
Attribute_Definition_Source: King County
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: BLKGRP_LBL2
Attribute_Definition_Source: King County
Attribute:
Attribute_Label: Shape.STArea()
Attribute:
Attribute_Label: Shape.STLength()
Overview_Description:
Entity_and_Attribute_Detail_Citation: King County

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: KCGIS Center
Contact_Person: giscenter@kingcounty.gov
Contact_Position: Data Distribution
Contact_Address:
Address_Type: mailing and physical
Address: 201 S Jackson St
City: Seattle
State_or_Province: WA
Postal_Code: 98104
Country: US
Contact_Voice_Telephone: 206-477-4403
Resource_Description: /plibrary2/census/shapes/polygon/blkgrp20_shore.shp
Distribution_Liability:
Distribution Liability: King County disclaims any warranty of use of any digital product or data beyond that for which it was designed.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: featureclass and shapefile
Fees:
Contact KCGIS Client Services for the cost of reproduction - <http://www.kingcounty.gov/operations/GIS/GISData/GISDataDistribution.aspx>

Metadata_Reference_Information:
Metadata_Date: 20210812
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: King County GIS Center
Contact_Person: Mary Ullrich
Contact_Position: GIS Specialist
Contact_Address:
Address_Type: mailing and physical
Address: 201 S Jackson St, Suite 225
City: Seattle
State_or_Province: WA
Postal_Code: 98104
Country: US
Contact_Voice_Telephone: 206-477-4420
Contact_Electronic_Mail_Address: firstname.lastname@kingcounty.gov
Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time

Generated by mp version 2.9.12 on Sun Oct 17 11:41:35 2021