Census Merged Local Authority District Boundaries for Great Britain, 2011

Digital vector boundaries for Census Merged Local Authority Districts in England and Wales as of 31 December 2011. The dataset contains two versions of boundaries: Generalised (20m) and Super Generalised (200m), both clipped to the coastline. It is provided by the Office for National Statistics and contains Ordnance Survey and ONS Intellectual Property Rights.

Use Cases

• Mapping administrative regions for census data visualization based on the provided vector boundaries.
• Performing spatial joins with other UK datasets using the 2011 local authority district geography.
• Creating base maps for regional analysis in England and Wales based on the coastline-clipped boundaries.

Strengths

• Provides two levels of generalization (20m and 200m) for different scale mapping needs.
• Boundaries are clipped to the Mean High Water coastline mark, which likely improves cartographic accuracy.
• File sizes are specified (3 MB and 679 KB), indicating manageable download sizes.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.
• Data reflects a specific snapshot from 2011, which may not represent current administrative boundaries.

Provenance

Source

Office for National Statistics

Collection Method

Likely digitized and generalized from official Ordnance Survey and census geography sources.

Time Range

As at 31 December 2011

Freshness

Last updated 2026-07-08 13:31:02.893187; freshness should be verified.

Geography

Great Britain (specifically England and Wales)