Name: Health Districts (2022)

Display Field: HD_NAME

Type: Feature Layer

Geometry Type: esriGeometryPolygon

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 Service Planning Area (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 2021 Supervisorial Districts and County Boundary layers.Data Fields:HD (Type = Text, Length = 2, Alias = HD 2022): Health District number as text; a numeric but non-quantitative identifierHD_NAME (Type = Text, Length = 30, Alias = HD NAME): Full Health District nameSPA (Type = Text, Length = 1, Alias = SPA 2022): SPA number that HD resides withinSPA_NAME (Type = Text, Length = 30, Alias SPA NAME): Full SPA name that HD resides withinHD_NUM (Type = Short, Alias HD NUM): Health District number as number; field type from earlier 2012 version of HDsUpdate 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

Default Visibility: false

MaxRecordCount: 1000

Supported Query Formats: JSON, geoJSON, PBF

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Has Labels: true

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Supports Datum Transformation: true

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Spatial Reference: 102100  (3857)

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Labeling Info:
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Label Expression: [HD_NAME]
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Advanced Query Capabilities:

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Supports Query With LOD Spatial Reference: false

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Fields:

• HD ( type: esriFieldTypeString, alias: HD 2022, length: 2 )
• HD_NAME ( type: esriFieldTypeString, alias: HD NAME, length: 30 )
• SPA ( type: esriFieldTypeString, alias: SPA 2022, length: 1 )
• SPA_NAME ( type: esriFieldTypeString, alias: SPA NAME, length: 30 )
• HD_NUM ( type: esriFieldTypeSmallInteger, alias: HD NUM )
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Supported Operations:   Query   Query Attachments   Query Analytic   Generate Renderer   Return Updates

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