2010 Census Blocks for King County - Conflated to Parcels

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator:

U.S. Department of Commerce, U.S. Census Bureau, Geography Division

Publication_Date: 20110210

Title: 2010 Census Blocks for King County - Conflated to Parcels

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>

Larger_Work_Citation:

Citation_Information:

Online_Linkage:

<http://www5.kingcounty.gov/sdc/addl_doc/CustomizedJoinDetail_Blocks.htm>

Description:

Abstract:

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.

Purpose:

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.

Supplemental_Information:

<http://www5.kingcounty.gov/sdc/addl_doc/CustomizedJoinDetail_Blocks.htm>

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20100101

Ending_Date: 20100701

Currentness_Reference: publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -121.993755

East_Bounding_Coordinate: -121.907210

North_Bounding_Coordinate: 47.501956

South_Bounding_Coordinate: 47.435882

Keywords:

Theme:

Theme_Keyword_Thesaurus: Not applicable

Theme_Keyword: census

Theme_Keyword: census block

Theme_Keyword: demographic

Theme_Keyword: block

Theme_Keyword: polygon

Place:

Place_Keyword_Thesaurus: Not applicable

Place_Keyword: 53033

Place_Keyword: Washington state

Place_Keyword: King County

Place_Keyword: WA

Place_Keyword: Pacific NW

Access_Constraints: None

Use_Constraints:

The TIGER/Line Shapefile products are not copyrighted however TIGER/Line and Census TIGER are registered trademarks of the U.S. Census Bureau. These products are free to use in a product or publication, however acknowledgement must be given to the U.S. Census Bureau as the source. The boundary information in the TIGER/Line Shapefiles 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 and they are not legal land descriptions.Coordinates in the TIGER/Line shapefiles have six implied decimal places, but the positional accuracy of these coordinates is not as great as the six decimal places suggest. 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 Analyst

Contact_Address:

Address_Type: mailing and physical

Address: 201 S Jackson St, Suite 706

City: Seattle

State_or_Province: WA

Postal_Code: 98104

Country: US

Contact_Voice_Telephone: 206-684-1789

Browse_Graphic:

Browse_Graphic_File_Name: <http://www5.kingcounty.gov/sdc/DataImages/blocks10.jpg>

Browse_Graphic_File_Description:

JPG File of layer overlain on base of WA counties or local cities

Browse_Graphic_File_Type: JPG

Native_Data_Set_Environment:

Microsoft Windows Server 2008 R2 Version 6.1 (Build 7601) Service Pack 1; ESRI ArcGIS 10.0.3.3600

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Accurate against Federal Information Processing Standards (FIPS), FIPS Publication 6-4, and FIPS-55 at the 100% level for the codes and base names. The remaining attribute information has been examined but has not been fully tested for accuracy.

Logical_Consistency_Report:

The Census Bureau performed automated tests to ensure logical consistency and limits of shapefiles. Segments making up the outer and inner boundaries of a polygon tie end-to-end to completely enclose the area. All polygons are tested for closure. The Census Bureau uses its internally developed geographic update system to enhance and modify spatial and attribute data in the Census MAF/TIGER database. Standard geographic codes, such as FIPS codes for states, counties, municipalities, county subdivisions, places, American Indian/Alaska Native/Native Hawaiian areas, and congressional districts are used when encoding spatial entities. The Census Bureau performed spatial data tests for logical consistency of the codes during the compilation of the original Census MAF/TIGER database files. Most of the codes for geographic entities except states, counties, urban areas, Core Based Statistical Areas (CBSAs), American Indian Areas (AIAs), and congressional districts were provided to the Census Bureau by the USGS, the agency responsible for maintaining FIPS 55. Feature attribute information has been examined but has not been fully tested for consistency. For the TIGER/Line Shapefiles, the Point and Vector Object Count for the G-polygon SDTS Point and Vector Object Type reflects the number of records in the shapefile attribute table. For multi-polygon features, only one attribute record exists for each multi-polygon rather than one attribute record per individual G-polygon component of the multi-polygon feature. TIGER/Line Shapefile multi-polygons are an exception to the G-polygon object type classification. Therefore, when multi-polygons exist in a shapefile, the object count will be less than the actual number of G-polygons.

Completeness_Report:

Data completeness of the TIGER/Line Shapefiles reflects the contents of the Census MAF/TIGER database at the time the TIGER/Line Shapefiles were created. TIGER/Line Shapefiles are extracted from the Census MAF/TIGER database. No changes or updates will be made to this version of the TIGER/Line Shapefiles. Future releases of TIGER/Line Shapefiles will reflect updates made to the Census MAF/TIGER database.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator:

U.S. Department of Commerce, U.S. Census Bureau, Geography Division

Publication_Date: unpublished material

Title: Census MAF/TIGER database

Type_of_Source_Media: onLine

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20100101

Ending_Date: 20100701

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: MAF/TIGER

Source_Contribution:

The selected geographic and cartographic information (line segments) are derived from the U.S. Census Bureau's Master Address File Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) database.

Process_Step:

Process_Description: All multipart polygons were devolved to single part.

Process_Step:

Process_Description:

Attributes in original Census data were reformatted to a series of map label and join items, both as string and integer.

Process_Step:

Process_Description:

Parcels were unioned with the census blocks and an algorithm based on majority area was applied to conflate those boundaries that crossed parcels to the edge of the majority parcel. Inspection and additional manual cleanup of multi-part polygons and slivers was performed.

Process_Step:

Process_Description:

TIGER/Line Shapefiles are extracted from the Census MAF/TIGER database by nation, state, county, and entity. Census MAF/TIGER data for all of the aforementioned geographic entities are then distributed among the shapefiles each containing attributes for line, polygon, or landmark geographic data.

Source_Used_Citation_Abbreviation: Census MAF/TIGER

Process_Date: 20100101

Spatial_Data_Organization_Information:

Indirect_Spatial_Reference:

Federal Information Processing Standards (FIPS), ANSI, and feature names.

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: 0

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: 0.0003280833333333334

Ordinate_Resolution: 0.0003280833333333334

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: PLIBRARY.CENSUS.xxxx251593

Entity_Type_Definition: Polygon attribute table

Entity_Type_Definition_Source: ESRI

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: SHAPE

Attribute_Definition: Feature Geometry

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features

Attribute:

Attribute_Label: BLOCK_LBL

Attribute_Definition: Block label

Attribute_Definition_Source: U.S. Census Bureau

Attribute_Domain_Values:

Unrepresentable_Domain: Cocantenation of literal Block with block number

Attribute:

Attribute_Label: GEO_ID_BLK

Attribute_Definition: Geographic Identifier - Block

Attribute_Definition_Source: US Census Bureau

Attribute_Domain_Values:

Unrepresentable_Domain: State + County + Tract + Block

Attribute:

Attribute_Label: FEATURE_ID

Attribute_Definition: Unique serial feature identifier

Attribute_Definition_Source: King County

Attribute_Domain_Values:

Unrepresentable_Domain: Unique integer for each block starting at 10001

Attribute:

Attribute_Label: BLOCK_STR

Attribute_Definition: Block number as string

Attribute_Definition_Source: U.S. Census Bureau

Attribute_Domain_Values:

Unrepresentable_Domain: String

Attribute:

Attribute_Label: BLOCK_INT

Attribute_Definition: Block number as integer

Attribute_Definition_Source: U.S. Census Bureau

Attribute_Domain_Values:

Unrepresentable_Domain: Integer

Attribute:

Attribute_Label: BLKLABEL_FULL

Attribute_Definition: Block label as full expression of all pertinent levels

Attribute_Definition_Source: U.S. Census Bureau

Attribute_Domain_Values:

Unrepresentable_Domain:

Cocantenation with spaces of delimited Tract number, string Block Group number and string Block number

Attribute:

Attribute_Label: BLKLABEL_COMP

Attribute_Definition: Block label as complete expression of all pertinent levels

Attribute_Definition_Source: U.S. Census Bureau

Attribute_Domain_Values:

Unrepresentable_Domain:

Cocantenation with spaces of stringTract number, string Block Group number and string Block number

Attribute:

Attribute_Label: BLKLABEL_TRIM

Attribute_Definition: Block label as trimmed expression of all pertinent levels

Attribute_Definition_Source: U.S. Census Bureau

Attribute_Domain_Values:

Unrepresentable_Domain:

Cocantenation with spaces of delimited Tract number, single digit Block Group sequence number and string Block number, all trimed to remove leading zeros

Attribute:

Attribute_Label: GEO_ID_GRP

Attribute:

Attribute_Label: BLKGRP_LBL

Attribute_Definition: Block Group label

Attribute_Definition_Source: U.S. Census Bureau

Attribute_Domain_Values:

Unrepresentable_Domain: Blkgrp literal cocantenated with block number

Attribute:

Attribute_Label: BLKGRP_STR

Attribute_Definition: Block Group as string

Attribute_Definition_Source: U.S. Census Bureau

Attribute_Domain_Values:

Unrepresentable_Domain: String

Attribute:

Attribute_Label: BLKGRP_INT

Attribute_Definition: Block Group as integer

Attribute_Definition_Source: U.S. Census Bureau

Attribute_Domain_Values:

Unrepresentable_Domain: Integer

Attribute:

Attribute_Label: GRPLABEL_FULL

Attribute_Definition: Block label as full expression of all pertinent levels

Attribute_Definition_Source: U.S. Census Bureau

Attribute_Domain_Values:

Unrepresentable_Domain:

Cocantenation with spaces of delimited Tract number and string Block Group number

Attribute:

Attribute_Label: GRPLABEL_COMP

Attribute_Definition: Block label as complete expression of all pertinent levels

Attribute_Definition_Source: U.S. Census Bureau

Attribute_Domain_Values:

Unrepresentable_Domain:

Cocantenation with spaces of stringTract number and string Block Group number

Attribute:

Attribute_Label: GRPLABEL_TRIM

Attribute_Definition: Block label as trimmed expression of all pertinent levels

Attribute_Definition_Source: U.S. Census Bureau

Attribute_Domain_Values:

Unrepresentable_Domain:

Cocantenation with spaces of delimited Tract number and string Block Group sequence identifier

Attribute:

Attribute_Label: GEO_ID_TRT

Attribute:

Attribute_Label: TRACT_LBL

Attribute_Definition: Tract label

Attribute_Definition_Source: U.S. Census Bureau

Attribute_Domain_Values:

Unrepresentable_Domain: Cocantenation of literal Tract with full Tract number

Attribute:

Attribute_Label: TRACT_STR

Attribute_Definition: Tract number as string

Attribute_Definition_Source: U.S. Census Bureau

Attribute_Domain_Values:

Unrepresentable_Domain: String

Attribute:

Attribute_Label: TRACT_INT

Attribute_Definition: Tract number as integer

Attribute_Definition_Source: U.S. Census Bureau

Attribute_Domain_Values:

Unrepresentable_Domain: Integer

Attribute:

Attribute_Label: TRACT_FLT

Attribute_Definition: Tract number as floating point

Attribute_Definition_Source: U.S. Census Bureau

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.00000000

Range_Domain_Maximum: 322.10000000

Attribute:

Attribute_Label: TRACT_DEL

Attribute_Definition: Floating point Tract number as string

Attribute_Definition_Source: U.S. Census Bureau

Attribute_Domain_Values:

Unrepresentable_Domain: Floating point value expressed as string

Attribute:

Attribute_Label: TRTLABEL_FULL

Attribute_Definition: Block label as full expression of all pertinent levels

Attribute_Definition_Source: U.S. Census Bureau

Attribute_Domain_Values:

Unrepresentable_Domain: Cocantenation with spaces of delimited Tract number

Attribute:

Attribute_Label: TRTLABEL_COMP

Attribute_Definition: Block label as complete expression of all pertinent levels

Attribute_Definition_Source: U.S. Census Bureau

Attribute_Domain_Values:

Unrepresentable_Domain: Cocantenation with spaces of full Tract number

Attribute:

Attribute_Label: TRTLABEL_TRIM

Attribute_Definition: Block label as trimmed expression of all pertinent levels

Attribute_Definition_Source: U.S. Census Bureau

Attribute_Domain_Values:

Unrepresentable_Domain: Cocantenation with spaces of delimited Tract number

Attribute:

Attribute_Label: COUNTY_STR

Attribute_Definition: County identifier as string

Attribute_Definition_Source: U.S. Census Bureau

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: (no value)

Enumerated_Domain_Value_Definition: No value

Enumerated_Domain_Value_Definition_Source: U.S. Census Bureau

Enumerated_Domain:

Enumerated_Domain_Value: 033

Enumerated_Domain_Value_Definition: King County

Enumerated_Domain_Value_Definition_Source: U.S. Census Bureau

Attribute:

Attribute_Label: COUNTY_INT

Attribute_Definition: County identifier as integer

Attribute_Definition_Source: U.S. Census Bureau

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 0

Enumerated_Domain_Value_Definition: No value

Enumerated_Domain_Value_Definition_Source: U.S. Census Bureau

Enumerated_Domain:

Enumerated_Domain_Value: 33

Enumerated_Domain_Value_Definition: King County

Enumerated_Domain_Value_Definition_Source: U.S. Census Bureau

Attribute:

Attribute_Label: STATE_STR

Attribute_Definition: State identifier as string

Attribute_Definition_Source: U.S. Census Bureau

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: (no value)

Enumerated_Domain_Value_Definition: No value

Enumerated_Domain_Value_Definition_Source: U.S. Census Bureau

Enumerated_Domain:

Enumerated_Domain_Value: 53

Enumerated_Domain_Value_Definition: Washington

Enumerated_Domain_Value_Definition_Source: U.S. Census Bureau

Attribute:

Attribute_Label: STATE_INT

Attribute_Definition: State identifier as integer

Attribute_Definition_Source: U.S. Census Bureau

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 0

Enumerated_Domain_Value_Definition: No value

Enumerated_Domain_Value_Definition_Source: U.S. Census Bureau

Enumerated_Domain:

Enumerated_Domain_Value: 53

Enumerated_Domain_Value_Definition: Washington

Enumerated_Domain_Value_Definition_Source: U.S. Census Bureau

Attribute:

Attribute_Label: LEVEL_1

Attribute_Definition: State code

Attribute_Definition_Source: U.S. Census Bureau

Attribute_Domain_Values:

Unrepresentable_Domain: String

Attribute:

Attribute_Label: LEVEL_2

Attribute_Definition: State code plus County code

Attribute_Definition_Source: U.S. Census Bureau

Attribute_Domain_Values:

Unrepresentable_Domain: String

Attribute:

Attribute_Label: LEVEL_3

Attribute_Definition: State code, County code plus Tract code

Attribute_Definition_Source: U.S. Census Bureau

Attribute_Domain_Values:

Unrepresentable_Domain: String

Attribute:

Attribute_Label: LEVEL_4

Attribute_Definition: State code, County code,Tract code plus Block Group code

Attribute_Definition_Source: U.S. Census Bureau

Attribute_Domain_Values:

Unrepresentable_Domain: String

Attribute:

Attribute_Label: LEVEL_5

Attribute_Definition:

State code, County code, Tract code, Block Group code plus Block code

Attribute_Definition_Source: U.S. Census Bureau

Attribute_Domain_Values:

Unrepresentable_Domain: String

Attribute:

Attribute_Label: LANDAREA

Attribute_Definition: Land area in Block in square feet

Attribute_Definition_Source: U.S. Census Bureau

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.00000000

Range_Domain_Maximum: 106810.17970000

Attribute:

Attribute_Label: WATERAREA

Attribute_Definition: Water area in block in square feet

Attribute_Definition_Source: U.S. Census Bureau

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.00000000

Range_Domain_Maximum: 0.00000000

Attribute:

Attribute_Label: LATITUDE

Attribute_Definition: Latitude of Block centroid

Attribute_Definition_Source: U.S. Census Bureau

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.00000000

Range_Domain_Maximum: 47.54649840

Attribute:

Attribute_Label: LONGITUDE

Attribute_Definition: Longitude of Block centroid

Attribute_Definition_Source: U.S. Census Bureau

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -122.06375020

Range_Domain_Maximum: 0.00000000

Attribute:

Attribute_Label: BLOCK_AREA

Attribute:

Attribute_Label: BLOCK_PERI

Attribute:

Attribute_Label: Shape.area

Attribute_Definition: Area of feature in square feet

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Double

Attribute:

Attribute_Label: Shape.len

Attribute_Definition: Length of feature edge in linear feet

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Double

Overview_Description:

Entity_and_Attribute_Overview:

Original attributes provided by the U.S. Census with Tiger Line files were evaluated. Changes are reformatting was done to create a series of attributes for internal business purposes. Attributes at this time serve only as variations of necessary geometry level identifiers and relates (PK) to possible business tables. Attributes are stored as both string and integer to allow options for joining data.

Entity_and_Attribute_Detail_Citation: King County

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: KCGIS Center

Contact_Person: Cheryl Wilder

Contact_Position: Data Sales Coordinator

Contact_Address:

Address_Type: mailing and physical

Address: 201 S Jackson St, Suite 700

City: Seattle

State_or_Province: WA

Postal_Code: 98104

Country: US

Contact_Voice_Telephone: 206-263-5220

Resource_Description: /plibrary2/census/shapes/polygon/blocks10.shp

Distribution_Liability:

King County disclaims any warranty of use of any digital product or data beyond that for which it was designed. No warranty, expressed or implied is made with regard to the accuracy of these data, and no liability is assumed by the U.S. Government in general or the U.S. Census Bureau in specific as to the spatial or attribute accuracy of the data. The act of distribution shall not constitute any such warranty and no responsibility is assumed by the U.S. government in the use of these files. The boundary information in the TIGER/Line Shapefiles is for statistical data collection and tabulation purposes only; their depiction and designation for statistical purposes do not constitute a determination of jurisdictional authority or rights of ownership or entitlement and they are not legal land descriptions.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: ESRI Shapefile

Digital_Transfer_Option:

Fees:

Contact KCGIS Client Services for the cost of reproduction - <http://www.kingcounty.gov/operations/GIS/GISData/GISDataDistribution.aspx>

Metadata_Reference_Information:

Metadata_Date: 20130116

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: King County GIS Center

Contact_Person: Mike Leathers

Contact_Position: GIS Data Coordinator

Contact_Address:

Address_Type: mailing and physical

Address: 201 S Jackson St, Suite 706

City: Seattle

State_or_Province: WA

Postal_Code: 98104

Country: US

Contact_Voice_Telephone: 206-263-4867

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