GIS Data Catalog
2020 Census Blocks for King County
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Summary
2020 United States Census Bureau block census geography.
Converted from Census Bureau TIGER/Line shapefiles and updated with attributes to meet King County GIS standards.
Description
This layer contains a unique geographic identifier (GEO_ID_BLK) for each block 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.Census blocks are statistical areas bounded on all sides by visible features such as streets, roads, streams, and railroad tracks, and by non-visible boundaries including city, town, and county boundaries.
Generally, census blocks are small in area as a block in a city.
However, Census blocks in suburban and rural areas may be large, irregular and bounded by a variety of features In remote areas, census blocks may encompass hundreds of square miles.
Census Block Numbers—Census blocks are numbered uniquely within the boundaries of each state, county, census tract with a 4-character census block number.
The first character of the tabulation block number identifies the block group.
A block number can only be unique by using the decennial census state (STATEFP20), county (COUNTYFP20), census tract (TRACTCE20), and block (BLOCKCE20).
The entire block number is the GEO_ID_BLK.
There is no consistency in block numbers from census to Full documentation: https://www2.census.gov/geo/pdfs/maps-data/data/tiger/tgrshp2020/TGRSHP2020_TechDoc.pdf
Layer information
| Layer Name | blocks20_area |
| Subject Category | Census |
| Title | 2020 Census Blocks for King County |
| Feature Count | 27686 |
| Feature Type | Polygon |
| Spatial reference | EPSG:2926 |
| Control ID | 2888 |
| Place Keywords | Washington State, King County, WA, Pacific NW |
| Theme Keywords | Census |
| Supplemental Information | None |
Table Preview
Attribute information
|
OBJECTID
From Esri |
Description
Internal feature number. DomainSequential unique whole numbers that are automatically generated. |
|
STATEFP20
From King County |
Description
Census Bureau code for a state. DomainNot Found |
|
COUNTYFP20
From King County |
Description
Census Bureau code for a county. DomainNot Found |
|
TRACTCE20
From King County |
Description
Census Bureau code for a tract. DomainNot Found |
|
BLOCKCE20
From King County |
Description
Census Bureau code for a block. This is not unique and may appear again in other blocks in neighboring census tracts. DomainNot Found |
|
GEO_ID_BLK
From King County |
Description
Unique geographic identifier for a block. Used as the key field to join tabular data from the Census Bureau. DomainNot Found |
|
NAME20
From King County |
Description
Block name. DomainNot Found |
|
MTFCC20
From King County |
Description
Not Found DomainNot Found |
|
UR20
From King County |
Description
Not Found DomainNot Found |
|
UACE20
From King County |
Description
Not Found DomainNot Found |
|
UATYPE20
From King County |
Description
Not Found DomainNot Found |
|
FUNCSTAT20
From King County |
Description
Not Found DomainNot Found |
|
ALAND20
From King County |
Description
Land area as calculated by Census Bureau. Domain0.0 to 612154443.0 by |
|
AWATER20
From King County |
Description
Water area as calculated by Census Bureau. Domain0.0 to 15299133.0 by |
|
INTPTLAT20
From King County |
Description
Not Found DomainNot Found |
|
INTPTLON20
From King County |
Description
Not Found DomainNot Found |
|
Shape_Leng
From King County |
Description
Not Found Domain216.88465197 to 682750.682779 by |
|
Shape
From Esri |
Description
Feature geometry. DomainCoordinates defining the features. |
|
BLOCK_LBL2
From King County |
Description
King County name for census block. DomainNot Found |
|
Shape.STArea()
From SQL Server |
Description
Returns the area of a geometry instance in square units, based on the spatial reference identifier (SRID) of the geometry. DomainDouble |
|
Shape.STLength()
From SQL Server |
Description
Returns the total length of the elements in a geometry instance. DomainDouble |
Contact information
| Maintained by | KCGIS Center |
| Primary |
KCGIS Center
giscenter@kingcounty.gov |
Terms of Use
| License | Terms of use and copyright |
Use this Data
|
Links
How to use in ArcGIS Pro |
|
| Sharing Status | Public |
Summary
2020 United States Census Bureau block census geography.
Converted from Census Bureau TIGER/Line shapefiles and updated with attributes to meet King County GIS standards.
Description
This layer contains a unique geographic identifier (GEO_ID_BLK) for each block 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.Census blocks are statistical areas bounded on all sides by visible features such as streets, roads, streams, and railroad tracks, and by non-visible boundaries including city, town, and county boundaries.
Generally, census blocks are small in area as a block in a city.
However, Census blocks in suburban and rural areas may be large, irregular and bounded by a variety of features In remote areas, census blocks may encompass hundreds of square miles.
Census Block Numbers—Census blocks are numbered uniquely within the boundaries of each state, county, census tract with a 4-character census block number.
The first character of the tabulation block number identifies the block group.
A block number can only be unique by using the decennial census state (STATEFP20), county (COUNTYFP20), census tract (TRACTCE20), and block (BLOCKCE20).
The entire block number is the GEO_ID_BLK.
There is no consistency in block numbers from census to Full documentation: https://www2.census.gov/geo/pdfs/maps-data/data/tiger/tgrshp2020/TGRSHP2020_TechDoc.pdf
Contact information
| Maintained by | KCGIS Center |
| Primary |
KCGIS Center
giscenter@kingcounty.gov |
Terms of use and copyright
| License | Terms of use and copyright |