Northern Ireland District Electoral Areas from 1993

Northern Ireland's District Electoral Area boundaries as defined in 1993. The polygon dataset was extracted from the Ordnance Survey Northern Ireland (OSNI) Large-scale database, topologically cleansed, and attributed to create a seamless layer. This service is published as Open Government Data under the LPS Open Government Data Licence.

Use Cases

• Historical analysis of electoral district evolution based on the 1993 boundary definitions.
• GIS mapping and spatial analysis of administrative units based on the polygon dataset.
• Integrating historical political boundaries with other demographic or election result data.

Strengths

• Data is topologically cleansed, indicating a focus on geometric integrity for spatial analysis.
• Derived from the authoritative OSNI Large-scale database, suggesting a reliable source.
• Available in multiple geospatial formats (KML, ESRI SHAPE, GEOJSON), enhancing accessibility.

Limitations

• Row count is unknown, which may limit suitability assessment for large-scale analysis.
• Column-level documentation is absent; field semantics must be inferred after download.
• Last update date is unknown; the dataset reflects a single historical snapshot from 1993.

Provenance

Source

Ordnance Survey Northern Ireland (OSNI) Large-scale database.

Collection Method

Extracted, topologically cleansed, and attributed from the source database.

Time Range

1993

Freshness

Snapshot from 1993; update frequency is unknown.

Geography

Northern Ireland