Name: 2010 Census Block Groups

Display Field: NAMELSAD

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: The TIGER/Line shapefiles and related database files (.dbf) 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 shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. Block Groups (BGs) are defined before tabulation block delineation and numbering, but are clusters of blocks within the same census tract that have the same first digit of their 4-digit census block number from the same decennial census. For example, 2010 Census tabulation blocks 3001, 3002, 3003,.., 3999 within 2010 Census tract 1210.02 are also within BG 3 within that census tract. 2010 Census BGs generally contained between 600 and 3,000 people. Most BGs were delineated by local participants in the Census Bureau's Participant Statistical Areas Program (PSAP). The Census Bureau delineated BGs only where the PSAP participant declined to delineate BGs or where the Census Bureau could not identify any local PSAP participant. A BG usually covers a contiguous area. Each census tract contains at least one BG, and BGs are uniquely numbered within census tract. Within the standard census geographic hierarchy, BGs never cross county or census tract boundaries, but may cross the boundaries of other geographic entities like county subdivisions, places, urban areas, voting districts, congressional districts, and American Indian / Alaska Native / Native Hawaiian areas. BGs have a valid code range of 0 through 9. BGs coded 0 were intended to only include water area, no land area, and they are generally in territorial seas, coastal water, and Great Lakes water areas. For the 2010 Census, rather than extending a census tract boundary into the Great Lakes or out to the U.S. nautical three-mile limit, the Census Bureau delineated some census tract boundaries along the shoreline or just offshore. The Census Bureau assigned a default census tract number beginning with 99 and a BG number of 0 to these offshore, water-only areas not included in regularly numbered census tract areas.

Copyright Text: US Census Bureau, Chatham County, Chatham County GIS

Default Visibility: true

MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 0

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Extent:

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YMin: 642856.2650047243
XMax: 2027800.315550059
YMax: 774140.3121473938
Spatial Reference: 102719  (2264)

Drawing Info:

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Labeling Info:

Advanced Query Capabilities:

Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports TrueCurve: true
Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: false
Supports Returning Geometry Centroid: false
Supports Binning LOD: false
Supports Query With LOD Spatial Reference: false

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• STATEFP ( type: esriFieldTypeString, alias: STATEFP, length: 2 )
• COUNTYFP ( type: esriFieldTypeString, alias: COUNTYFP, length: 3 )
• TRACTCE ( type: esriFieldTypeString, alias: TRACTCE, length: 6 )
• BLKGRPCE ( type: esriFieldTypeString, alias: BLKGRPCE, length: 1 )
• GEOID ( type: esriFieldTypeString, alias: GEOID, length: 12 )
• NAMELSAD ( type: esriFieldTypeString, alias: NAMELSAD, length: 13 )
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• Shape_Area ( type: esriFieldTypeDouble, alias: Shape_Area )

Supported Operations:   Query   Query Attachments   Query Analytic   Generate Renderer   Return Updates

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