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
Feature Type: Polygon
Type: FeatureLayer
Display Field: HD_NAME
Primary Key Field: OBJECTID
Show Map Tips: False
Searchable: False
Identifiable: True
Queryable: True
Can Copy Feature: True
Snappable: True
Snapping Enabled: False
Has Attachments: False
Feature Label: {HD_NAME}
Feature Description: N/A
Feature Long Description: N/A
Feature Zoom Factor: N/A
Feature Zoom Scale: N/A
Feature Border Color: N/A
Feature Border Width: N/A
Feature Fill Color: N/A
Icon: N/A
Include in Layer List: True
Include in Legend: True
Can Toggle Labels: True
Show Labels: True
Allow Symbolization: True
Draw Index: N/A
Legend URL: N/A
Style Name: N/A
Data Provider: Default
Time Zone ID: Etc/UTC
Fields:
OBJECTID (Type: Int32, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
HD [HD 2022] (Type: String, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
HD_NAME [HD NAME] (Type: String, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
SPA [SPA 2022] (Type: String, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
SPA_NAME [SPA NAME] (Type: String, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
HD_NUM [HD NUM] (Type: Int16, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
Shape [SHAPE] (Type: Object, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
Shape.STArea() (Type: Double, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
Shape.STLength() (Type: Double, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)