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

Digital vector boundaries for Lower Layer Super Output Areas (LSOAs) in England and Wales as of 31 December 2011. The dataset is provided by the Office for National Statistics and contains four boundary versions, including full-resolution and generalised formats. File sizes for the downloads range from 8 MB to 357 MB.

Use Cases

• Mapping socioeconomic indicators based on the standardized LSOA geography mentioned in the description.
• Performing spatial joins with census data based on the provided LSOA boundary polygons.
• Creating generalised base maps for publication based on the 20m or 200m clipped coastline boundaries.
• Analyzing coastal versus inland administrative areas based on the full-resolution boundaries clipped to the Mean High Water mark.

Strengths

• Provides four distinct boundary versions, including full-resolution (up to 357 MB file) and generalised (20m and 200m) options.
• Contains boundaries for a specific, standardized census geography (LSOAs) as of a fixed date (31 December 2011).
• Includes both extent-of-the-realm and coastline-clipped versions for different analytical needs.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Row count is unknown, which may limit suitability assessment for large-scale processing.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

Office for National Statistics

Collection Method

Likely digitized and maintained by national mapping and statistical agencies.

Time Range

As of 31 December 2011

Freshness

Last updated 2026-07-08 13:33:25.070003; freshness should be verified.

Geography

England and Wales