Lower Layer Super Output Areas: 2011 Boundaries for England and Wales

England and Wales digital vector boundaries for Lower Layer Super Output Areas as of 31 December 2011. The dataset contains multiple boundary versions, including full resolution, generalised (20m), and super generalised (200m) files, with sizes ranging from 8 MB to 357 MB. It is provided by the Office for National Statistics and contains Ordnance Survey and ONS Intellectual Property Rights.

Use Cases

• Create thematic maps for census data based on the provided LSOA boundaries.
• Perform spatial analysis of socio-economic indicators based on the consistent 2011 geographic framework.
• Integrate boundary data into GIS software for regional planning based on the multiple resolution options.
• Visualize administrative geography for England and Wales based on the coastline-clipped or full-extent boundaries.

Strengths

• Provides boundaries as of a specific date (31 December 2011), ensuring temporal consistency.
• Offers four distinct boundary versions, including generalised files as small as 8 MB for different use cases.
• Contains direct download links to ArcGIS REST services for programmatic access.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Data is from 2011; freshness should be verified for current applications despite the 2026 platform update.
• Row count is unknown, which may limit suitability assessment for large-scale processing.

Provenance

Source

Office for National Statistics and Ordnance Survey

Collection Method

Official geographic boundary definition and digitization.

Time Range

As of 31 December 2011

Freshness

Last updated 2026-07-08 13:33:02.664083; the underlying boundary data is from 2011.

Geography

England and Wales