LSOA to LSOA to Local Authority District Exact Fit Lookup for England and Wales

A lookup file mapping Lower layer Super Output Areas from December 2011 to their December 2021 counterparts and Local Authority Districts as of December 2022 in England and Wales. It includes a 'change indicator' field categorizing the relationship between 2011 and 2021 LSOAs as unchanged, split, merged, or complex. The dataset was last updated on August 8, 2024.

Use Cases

• Harmonizing statistical time series across the 2011 and 2021 LSOA boundary changes based on the change indicator.
• Aggregating data from LSOA to Local Authority District level for England and Wales based on the exact fit mapping.
• Identifying geographic areas where direct comparisons between 2011 and 2021 census data are possible based on the 'U' (No Change) indicator.
• Analyzing patterns of LSOA boundary splits or mergers over a decade based on the 'S' and 'M' change categories.

Strengths

• Provides a direct mapping between three key UK geographic code sets (2011 LSOA, 2021 LSOA, 2022 LAD).
• Includes a detailed change indicator with four categories (U, S, M, X) to clarify comparability over time.
• Covers all of England and Wales, as stated in the description.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The description notes specific corrections in version 3, suggesting earlier versions contained errors.

Provenance

Source

Government Digital Service

Time Range

Geographic boundaries as of December 2011, December 2021, and December 2022.

Freshness

Last updated 2024-08-08 11:35:18.482000; freshness should be verified.

Geography

England and Wales