Country of Birth from the 2001 Census for England and Wales

England and Wales population data by country of birth from the 2001 Census. The dataset is published by the Office for National Statistics via Neighbourhood Statistics and uses the ONS Geography Classification of Countries. Data is available at multiple geographic levels from Output Areas up to the national level.

Use Cases

• Mapping immigrant population distribution based on geographic coverage at multiple administrative levels.
• Analyzing migration trends from specific countries based on the ONS Geography Classification of Countries.
• Studying demographic change at a local scale based on data available for Output Areas and Wards.
• Comparing population origins across UK regions based on Government Office Region (GOR) level data.

Strengths

• Data is sourced from the authoritative 2001 Census, a complete population survey.
• Geographic coverage includes seven distinct administrative levels, from Output Area to National.
• Country classification follows a specific, documented standard (ONS Geography Classification of Countries).

Limitations

• Data is from a single point in time (2001) and may not reflect current demographics.
• Row count and file size are unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

Office for National Statistics

Collection Method

Survey (census)

Time Range

2001

Freshness

Last updated 2026-07-08 13:31:14.754504; freshness should be verified.

Geography

England and Wales