OSNI Open Data 50k Admin Boundaries - Townlands
type: Dataset
description: Mid scale vector polygon dataset showing townland boundaries. Published here for OpenData. By download or use of this dataset you agree to abide by the Open Government Data Licence.
description: Mid-scale vector polygon dataset showing townland boundaries in Northern Ireland, published by Ordnance Survey Northern Ireland (OSNI) as part of its Open Data programme. Townlands are traditional small land divisions used historically for administrative, postal, and land-registration purposes. The dataset is made available for download and reuse under the Open Government Licence, and is suited to mapping, administrative boundary analysis, and applications requiring reference to historic townland units across Northern Ireland.
landing page: https://data.gov.uk/dataset/osni-open-data-50k-admin-boundaries-townlands1
spatial: GBR
access rights: PUBLIC
distribution: GeoJSON
distribution: CSV
distribution: Esri Rest API
distribution: Shapefile
distribution: KML
distribution: OGC WMS
issued: 2026-07-09T08:59:59.012Z
modified: 2026-08-23T11:47:22.064Z
is part of: catalog

GeoJSON
type: Distribution
access URL: http://osni.spatial-ni.opendata.arcgis.com/datasets/1cdb3f26958046799f84a3de58dcc349_6.geojson
download URL: http://osni.spatial-ni.opendata.arcgis.com/datasets/1cdb3f26958046799f84a3de58dcc349_6.geojson
media type: vnd.geo+json
format: GEOJSON

CSV
type: Distribution
access URL: http://osni.spatial-ni.opendata.arcgis.com/datasets/1cdb3f26958046799f84a3de58dcc349_6.csv
download URL: http://osni.spatial-ni.opendata.arcgis.com/datasets/1cdb3f26958046799f84a3de58dcc349_6.csv
media type: https://www.iana.org/assignments/media-types/text/csv
format: CSV

Esri Rest API
type: Distribution
access URL: https://gisservices.spatialni.gov.uk/arcgisc/rest/services/OpenData/OSNIOpenData_50KBoundaries/MapServer/6
download URL: https://gisservices.spatialni.gov.uk/arcgisc/rest/services/OpenData/OSNIOpenData_50KBoundaries/MapServer/6
media type: https://www.iana.org/assignments/media-types/application/json
format: JSON

Shapefile
type: Distribution
access URL: http://osni.spatial-ni.opendata.arcgis.com/datasets/1cdb3f26958046799f84a3de58dcc349_6.zip
download URL: http://osni.spatial-ni.opendata.arcgis.com/datasets/1cdb3f26958046799f84a3de58dcc349_6.zip
media type: https://www.iana.org/assignments/media-types/application/zip
format: ZIP

KML
type: Distribution
access URL: http://osni.spatial-ni.opendata.arcgis.com/datasets/1cdb3f26958046799f84a3de58dcc349_6.kml
download URL: http://osni.spatial-ni.opendata.arcgis.com/datasets/1cdb3f26958046799f84a3de58dcc349_6.kml
media type: vnd.google-earth.kml+xml
format: KML

OGC WMS
type: Distribution
access URL: https://gisservices.spatialni.gov.uk/arcgisc/services/OpenData/OSNIOpenData_50KBoundaries/MapServer/WMSServer
media type: vnd.ogc.wms xml
format: wms