OSNI 50K Boundaries: Northern Ireland Wards from 1993

OSNI Open Data provides a mid-scale vector polygon dataset depicting Ward boundaries in Northern Ireland as they were set in 1993. The dataset is published for open data use under the LPS Open Government Data Licence. It is available in multiple geospatial formats, including ESRI Shapefile, GeoJSON, and KML, and is accessible via API for use in desktop and web mapping applications.

Use Cases

• Historical boundary analysis based on the 1993 Ward delineations.
• Administrative mapping and visualization using the provided polygon geometries.
• Spatial data integration for demographic or electoral studies referencing the 1993 Ward framework.
• Creating base maps for local planning and public service delivery in Northern Ireland.

Strengths

• Dataset is available under the OGL-UK-3.0 open license, facilitating reuse.
• Cross-platform presence on uk_data and eu_open_data indicates established use and availability.
• Provides access via multiple geospatial formats (e.g., ESRI SHAPE, GeoJSON, KML, WMS) and an API.

Limitations

• Specific column names and schema details are not provided in the source metadata.
• The dataset represents a historical snapshot from 1993 and may not reflect current administrative boundaries.
• Metadata for row count, file size, and specific author is consistently missing across all sources.

Provenance

Source

OpenDataNI / OSNI (Ordnance Survey Northern Ireland)

Collection Method

Published vector data derived from official administrative boundary surveys.

Time Range

1993

Freshness

Last updated on 2026-07-08 according to the most recent uk_data entry.

Geography

Northern Ireland