Layer: Health Districts (2022) (ID:0)

View In: Map Viewer

Name: Health Districts (2022)

Display Field: HD_NAME

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Is View: true

Is Updatable View: true

Source Schema Changes Allowed: true

Sources

Description:

Los Angeles County Health Districts (HDs), updated in 2022. Los Angeles County is divided into twenty-six HDs, which are subdivisions of Service Planning areas (SPAs). HDs are used for planning and managing health service delivery across Los Angeles County.

Updating HD and SPA boundaries to align with new U.S. Census Bureau census tract boundaries is performed after every Decennial Census.

How was this data created?

The 2020 Census Tracts from the U.S. Census Bureau's 2021 TIGER/Line were used as building blocks for the HD layer. The 2012 HD layer was compared to the 2020 Census Tracts layer to provide preliminary information on the HDs associated with each Census Tract and to determine where HDs no longer aligned. For the 2022 HD layer, boundaries were updated to align with 2020 Census Tract boundary changes within their corresponding 2022 SPAs with consideration for maintaining effective service delivery. The HDs were refined to conform with the County boundary and coastline from the Supervisorial Districts 2021 and County Boundary layers.

Data Fields:

HD (Type = Text, Length = 2, Alias = HD 2022): Health District number as text; a numeric but non-quantitative identifier

HD_NAME (Type = Text, Length = 30, Alias = HD NAME): Full Health District name

SPA (Type = Text, Length = 1, Alias = SPA 2022): SPA number that HD resides within

SPA_NAME (Type = Text, Length = 30, Alias SPA NAME): Full SPA name that HD resides within

HD_NUM (Type = Short, Alias HD NUM): Health District number as number; field type from earlier 2012 version of HDs

Update Frequency: After every Decennial Census or as needed

Copyright Text: This data is maintained by the Los Angeles County Department of Public Health. Other Credits: U.S. Census Bureau; Los Angeles County Internal Services Department, Registrar Recorder/County Clerk, Department of Public Works

Min. Scale: 28172631

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

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:

Global ID Field:

Type ID Field:

Fields:

OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
HD (type: esriFieldTypeString, alias: HD 2022, SQL Type: sqlTypeOther, length: 2, nullable: true, editable: true)
HD_NAME (type: esriFieldTypeString, alias: HD NAME, SQL Type: sqlTypeOther, length: 30, nullable: true, editable: true)
SPA (type: esriFieldTypeString, alias: SPA 2022, SQL Type: sqlTypeOther, length: 1, nullable: true, editable: true)
SPA_NAME (type: esriFieldTypeString, alias: SPA NAME, SQL Type: sqlTypeOther, length: 30, nullable: true, editable: true)
HD_NUM (type: esriFieldTypeSmallInteger, alias: HD NUM, 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:

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 3/25/2022 11:20:17 PM

Schema Last Edit Date: 3/25/2022 11:20:17 PM

Data Last Edit Date: 3/25/2022 11:20:17 PM

Supported Operations: Query Query Pivot Query Top Features Query Analytic Query Bins Generate Renderer Validate SQL Get Estimates ConvertFormat