Name: County Boundary

Display Field: CO_ID

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: <div style="text-align:left;"><p style="font-size:12pt;"><span>The division into counties based on the model used in the English system, was introduced gradually by English settlers from the late 12th century onwards. These land divisions were formed following the Norman invasion of Ireland in imitation of the counties then in use as units of local government in the Kingdom of England. The older term "shire" was historically equivalent to "county". The principal function of the county was to impose royal control in the areas of taxation, security and the administration of justice at local level. Following a survey under the 1825 Boundary Survey Act, an extensive series of maps of Ireland was created by the Irish division of the Ordnance Survey for taxation purposes. These maps both documented and standardised the boundaries of the thirty two counties of Ireland.</span></p><p style="font-size:12pt;"><span>Coordinate Reference System: Irish Transverse Mercator.</span></p><p><span style="font-size:16px;">This dataset is provided by Tailte Éireann – National Mapping Division</span><br>&nbsp;</p></div>

Copyright Text: © National Mapping Division of Tailte Éireann

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: -10.9028560132903
YMin: 51.3999170988739
XMax: -5.87517535897993
YMax: 55.449197897382
Spatial Reference: 4326 (4326)

Drawing Info:

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HasZ: false

HasM: false

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: FID

Unique ID Field:

Name : FID

IsSystemMaintained : True

Global ID Field:

Type ID Field:

Fields:

• FID (type: esriFieldTypeOID, alias: FID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
• CO_ID (type: esriFieldTypeString, alias: CO_ID, SQL Type: sqlTypeOther, length: 254, nullable: true, editable: true)
• COUNTY (type: esriFieldTypeString, alias: COUNTY, SQL Type: sqlTypeOther, length: 150, nullable: true, editable: true)
• AREA (type: esriFieldTypeDouble, alias: AREA, SQL Type: sqlTypeOther, nullable: true, editable: true)
• SHAPE_Leng (type: esriFieldTypeDouble, alias: SHAPE_Leng, SQL Type: sqlTypeOther, nullable: true, editable: true)
• CENTROID_X (type: esriFieldTypeDouble, alias: CENTROID_X, SQL Type: sqlTypeOther, nullable: true, editable: true)
• CENTROID_Y (type: esriFieldTypeDouble, alias: CENTROID_Y, 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: County Boundary
Description:
Drawing Tool: esriFeatureEditToolPolygon
Prototype:

Attributes:

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 1/26/2026 1:24:28 PM

Schema Last Edit Date: 12/12/2025 12:52:02 PM

Data Last Edit Date: 12/12/2025 12:52:02 PM

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