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Service Description:
All Layers and Tables
Has Versioned Data: false
MaxRecordCount: 2000
Supported Query Formats: JSON
Supports Query Data Elements:
Layers:
Description: This dataset comprises 2020 census blocks as polygons for the County of San Diego. A census block is the smallest geographic unit used by the United States Census Bureau for the tabulation of 100-percent data (data collected from all houses rather than a sample of houses). Census blocks are grouped into block groups, which are grouped into census tracts. There are on average about 39 blocks per block group. Blocks are typically bounded by streets, roads or creeks. In cities, a census block may correspond to a city block, but in rural areas where there are fewer roads, blocks may be limited by other features. The population by census blocks varies greatly.Topologically Integrated Geographic Encoding and Referencing (TIGER) is a format used by the US Census Bureau to describe land attributes such as roads, buildings, rivers, and lakes, as well as areas such as census tracts. TIGER was developed to support and improve the Census Bureau's process of taking the Decennial Census. 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.TIGER data was used as the basis for this Census Blocks dataset, which was then edited by SANDAG, and then further edited by SanGIS. TIGER blocks were adjusted to match local GIS data including parcels, municipal boundaries, and roads. Some blocks were merged with adjacent blocks. The ocean blocks were removed.
Service Item Id: b5bca515746c4d8381075cb1f5b1fa2c
Copyright Text: SANDAG (primary) and SANGIS(secondary) using data provided by the United States Census Bureau (TIGER).
Spatial Reference:
102646
(2230)
Initial Extent:
XMin: 6127622.027975006
YMin: 1757581.2986999967
XMax: 6636565.507524999
YMax: 2147482.7953000003
Spatial Reference: 102646
(2230)
Full Extent:
XMin: 6150755.8223808855
YMin: 1775304.094061643
XMax: 6613431.712972134
YMax: 2129759.999977812
Spatial Reference: 102646
(2230)
Units: esriFeet
Document Info:
Enable Z Defaults: true
Sync Capabilities:
Supports Registering Existing Data: true
Supports Sync Direction Control: true
Supports PerLayer Sync: true
Supports PerReplica Sync: false
Supports RollbackOnFailure : false
Supports Async: true
Supports ApplyEdits With Global Ids: true
Supports Dynamic Layers: false
Child Resources:
Info
Replicas
Relationships
Supported Operations:
Query
Query Contingent Values
Apply Edits
Append
Create Replica
Synchronize Replica
Unregister Replica