Layers:

Layer: State Senatorial Districts (0)


Name: State Senatorial Districts

Display Field: Dist_name

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: State Senatorial Districts with district boundaries, within the extent of Alameda County; districts have been updated to show 2011 redistricting changes. Boundaries represent voting districts (i.e., district designation for each address) and therefore may align with parcel boundaries in cases where parcels (and sometimes residences) are divided by the true city/district boundary.

Copyright Text: Alameda County Registrar of Voters

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: -13619222.5349
YMin: 4502605.2337
XMax: -13521903.4897
YMax: 4566252.5545
Spatial Reference: 102100 (3857)


Drawing Info:

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HasZ: false

HasM: false

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: OBJECTID

Unique ID Field:

Name : OBJECTID

IsSystemMaintained : True


Global ID Field:

Type ID Field:

Fields:
• OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
• Dist_name (type: esriFieldTypeString, alias: Dist_name, SQL Type: sqlTypeOther, length: 50, nullable: true, editable: true)
• DISTRICT_ID (type: esriFieldTypeInteger, alias: DISTRICT_ID, SQL Type: sqlTypeOther, nullable: true, editable: true)
• Shape__Area (type: esriFieldTypeDouble, alias: Shape__Area, SQL Type: sqlTypeDouble, nullable: true, editable: false)
• Shape__Length (type: esriFieldTypeDouble, alias: Shape__Length, SQL Type: sqlTypeDouble, nullable: true, editable: false)

Templates:

Name: State Senatorial Districts
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:


Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 2/2/2026 5:14:33 AM

Schema Last Edit Date: 2/2/2026 5:14:33 AM

Data Last Edit Date: 2/2/2026 5:14:26 AM