Name: Arson_communities

Display Field: community

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: This polygon dataset represents arson rates normalized by population for the 77 community areas of Chicago. Arson incident counts were aggregated from geocoded point data and divided by community population to produce a rate per 1,000 residents. This ensures that comparisons between communities are not biased by differing population sizes.The arson rate field is the primary variable used for spatial statistical modeling, including Getis–Ord Gi* hotspot detection and Local Moran’s I cluster/outlier analysis. The dataset supports urban crime assessment, visualization of fire-related risk, and evaluation of emergency response accessibility.Arson Rate Formula:Arson Rate = (Total Arson Incidents / Community Population) × 1,00000Temporal Scope: January 1 – December 31, 2020.

Copyright Text: City of Chicago Crime Portal (2020), U.S. Census ACS Population Data

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: 1091130.76494869
YMin: 1813891.87454232
XMax: 1205198.84294867
YMax: 1951669.00322823
Spatial Reference: 103037 (6455)

Drawing Info:

{"renderer":{"type":"simple","symbol":{"type":"esriSFS","style":"esriSFSSolid","color":[252,204,249,255],"outline":{"type":"esriSLS","style":"esriSLSSolid","color":[110,110,110,255],"width":0.7}}},"scaleSymbols":true,"transparency":0,"labelingInfo":null}

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)
• Arson_Count (type: esriFieldTypeInteger, alias: Arson_Count, SQL Type: sqlTypeOther, nullable: true, editable: true)
• TARGET_FID (type: esriFieldTypeInteger, alias: TARGET_FID, SQL Type: sqlTypeOther, nullable: true, editable: true)
• community (type: esriFieldTypeString, alias: community, SQL Type: sqlTypeOther, length: 254, nullable: true, editable: true)
• populationtotals_TOTPOP20 (type: esriFieldTypeDouble, alias: 2020 Total Population, SQL Type: sqlTypeOther, nullable: true, editable: true)
• Year (type: esriFieldTypeInteger, alias: Year, SQL Type: sqlTypeOther, nullable: true, editable: true)
• Arson_rate (type: esriFieldTypeSingle, alias: Arson_rate, 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: Arson_communities
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 1/29/2026 9:55:43 PM

Schema Last Edit Date: 1/29/2026 9:55:43 PM

Data Last Edit Date: 1/29/2026 9:55:43 PM

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