MSOAs to Local Authority Districts: England and Wales Exact Fit Lookup (2011-2022)

Office for National Statistics provides an exact fit lookup file between Middle layer Super Output Areas (MSOAs) from December 2011 and December 2021, and Local Authority Districts from December 2022 in England and Wales. The dataset includes a 'change indicator' field with four categories to define changes between the 2011 and 2021 MSOA boundaries. This version 2 includes updates to the change indicator for splits that went to complexes in under 10 MSOAs.

Use Cases

• Harmonizing time-series data across the 2011 to 2021 MSOA boundary changes based on the provided change indicator.
• Aggregating or disaggregating data from MSOA to Local Authority District level for England and Wales.
• Identifying geographic areas where direct comparisons can be made between 2011 and 2021 MSOAs based on the 'U' (No Change) indicator.

Strengths

• Provides an exact fit lookup between three key UK statistical geographies: MSOA (2011), MSOA (2021), and Local Authority District (2022).
• Includes a specific change indicator field with four defined categories to clarify boundary changes between 2011 and 2021.
• Published by the authoritative Office for National Statistics, the UK's national statistical institute.

Limitations

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

Provenance

Source

Office for National Statistics

Collection Method

Likely compiled from official geographic boundary definitions and change records.

Time Range

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

Freshness

Last updated 2026-05-20 19:03:40.789184; freshness should be verified.

Geography

England and Wales