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Layer: Very High Risk Census Tracts (ID: 0)

View In:   ArcGIS Online Map Viewer

Name: Very High Risk Census Tracts

Display Field: TRACT

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: Each of the State of Maryland’s 1,406 2010 census tracts was analyzed to determine whether it represented a typical census tract as defined by the U. S. Bureau of the Census. Nationally these are census tracts that optimally are 4,000 inhabitants but generally range from 1,200 to 8,000 persons. In Maryland the average census tract contains 4,106 persons. Nationally the housing unit threshold for each census tract generally ranges from 480 to 3,200 housing units, with an optimum size of 1,600 housing units. In Maryland the average census tract contains 1,692 housing units. The Emergency Management Planning Database and the Emergency Planning Vulnerable Population Index are intended to assist State agency emergency officials plan tactics, develop strategies, allocate resources and prioritize responses for emergencies and to identify potentially vulnerable population areas for special attention. Statewide, there are 222 census tracts containing persons at “Very High” socio – economic risk or vulnerability in the event of an emergency. “Very High” risk census tracts account for 16 – percent of the State’s 1,390 specified census tracts. These census tracts are located throughout the State in 20 of 24 jurisdictions. There are 773,808 persons living in these areas making up 13.4 percent of the State’s 2010 Census population of 5,773,552 persons.

Definition Expression: N/A

Copyright Text: MD iMAP, MDP, Jesse Ash,

Default Visibility: true

MaxRecordCount: 300

Supported Query Formats: JSON, AMF, geoJSON

Min Scale: 0

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Use Standardized Queries: true

Supports ValidateSQL: true

Supports Calculate: true

Drawing Info: Advanced Query Capabilities:
HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field:

Fields: Templates:
Capabilities: Query,Extract

Sync Can Return Changes: false

Is Data Versioned: false

Supports Rollback On Failure: true

Supports ApplyEdits With Global Ids: false

Supports Query With Historic Moment: false

Supported Operations:   Query   Calculate   Validate SQL   Generate Renderer   Return Updates