Name: Prisons

Display Field: NAME

Type: Feature Layer

Geometry Type: esriGeometryPoint

Description: The Prisons point datalayer shows the locations of all correctional facilities (state, county and federal) that house inmates in the Commonwealth of Massachusetts.Physical locations were verified from the websites of the Massachusetts Department of Correction (MADOC), Massachusetts Sheriffs' Association (MSA), Federal Bureau of Prisons (BOP) and individual facilities, and verbal communication with many of the facilities. Ancillary support facilities - treatment centers, process divisions, resource centers, etc. - are not included because there were no inmates living at these facilities.This layer was modified from its previous version, which was developed by the Massachusetts Department of Environmental Protection’s (DEP) GIS Program based on database information provided by the Department of Criminal Justice Information Services (DCJIS) (the state agency responsible for maintaining the Commonwealth's criminal justice information system), part of the Massachusetts Executive Office of Public Safety and Security (EOPSS). The EOPSS is also the parent agency of the MADOC, which operates the Commonwealth's state prison system.The layer is named PRISONS_PT.MassGIS staff compared the previous version of the data to the latest lists of facilities using ArcGIS. Data sources included MADOC Locations, MSA Locations, and the Federal Bureau of Prisons. Closed facilities were removed. MassGIS staff used the most current ortho imagery to verify the locations of all points and place them atop a building or within the center of the property. Location source attributes were dropped. Facility populations and capacity were omitted in this version since they fluctuate frequently.

Copyright Text: MassGIS

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: 59439.5821999982
YMin: 793974.363000002
XMax: 282016.082199998
YMax: 940493.955899999
Spatial Reference: 26986 (26986)

Drawing Info:

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HasZ: false

HasM: false

Has Attachments: false

Has Geometry Properties: false

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)
• PRISON_ID (type: esriFieldTypeSmallInteger, alias: Prison ID, SQL Type: sqlTypeOther, nullable: true, editable: true)
• NAME (type: esriFieldTypeString, alias: Name, SQL Type: sqlTypeOther, length: 75, nullable: true, editable: true)
• ADDRESS (type: esriFieldTypeString, alias: Address, SQL Type: sqlTypeOther, length: 40, nullable: true, editable: true)
• TOWN (type: esriFieldTypeString, alias: Municipality, SQL Type: sqlTypeOther, length: 21, nullable: true, editable: true)
• ZIP (type: esriFieldTypeString, alias: ZIP Code, SQL Type: sqlTypeOther, length: 10, nullable: true, editable: true)
• MAIL_ADDR (type: esriFieldTypeString, alias: Mailing Address, SQL Type: sqlTypeOther, length: 60, nullable: true, editable: true)
• TYPE (type: esriFieldTypeString, alias: Jurisdiction, SQL Type: sqlTypeOther, length: 1, nullable: true, editable: true, Coded Values: [C: County], [F: Federal], [S: State])
• MALE_FEMAL (type: esriFieldTypeString, alias: Gender, SQL Type: sqlTypeOther, length: 10, nullable: true, editable: true)
• SECURITY (type: esriFieldTypeString, alias: Security Level(s), SQL Type: sqlTypeOther, length: 20, nullable: true, editable: true)
• NOTES (type: esriFieldTypeString, alias: Notes, SQL Type: sqlTypeOther, length: 60, nullable: true, editable: true)

Templates:

Name: Prisons
Description:
Drawing Tool: esriFeatureEditToolPoint
Prototype:

Attributes:

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 5/14/2026 11:50:55 PM

Schema Last Edit Date: 5/14/2026 11:50:55 PM

Data Last Edit Date: 4/28/2026 4:24:23 PM

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