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Mapping population
data for Parliament
Oliver Hawkins
Social and General Statistics
House of Commons Library
The House of Commons Library
“The best kept secret in the British
constitutional architecture”
Andrew Dilnot
Chair of the ...
WHAT IS PARLIAMENTARY DATA?
Mapping population data for Parliament
MAPPING ETHNIC SEPARATION
Mapping population data for Parliament
Ethnic separation
“Which constituencies are the most and least
ethnically segregated?”
Index of dissimilarity
To build an index of dissimilarity you need data on
the population …
• In two mutually exclusive gr...
POPULATION BUILDER
Mapping population data for Parliament
What are small area
population estimates?
The Office for National Statistics produces annual
population estimates for a ra...
What’s missing?
1. Natural settlement geographies
- Produced every ten years for the Census
2. Custom area population esti...
CONSTITUENCY BOUNDARIES
Mapping population data for Parliament
2018 Boundary Review
• Number of constituencies cut by 50 to 600
• All new constituencies +/- 5% of 74,769
• Seats redistr...
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Mapping population data for Parliament - Oli Hawkins

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A talk from the second Parliament, politics and data meetup

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Mapping population data for Parliament - Oli Hawkins

  1. 1. Mapping population data for Parliament Oliver Hawkins Social and General Statistics House of Commons Library
  2. 2. The House of Commons Library “The best kept secret in the British constitutional architecture” Andrew Dilnot Chair of the UK Statistics Authority
  3. 3. WHAT IS PARLIAMENTARY DATA? Mapping population data for Parliament
  4. 4. MAPPING ETHNIC SEPARATION Mapping population data for Parliament
  5. 5. Ethnic separation “Which constituencies are the most and least ethnically segregated?”
  6. 6. Index of dissimilarity To build an index of dissimilarity you need data on the population … • In two mutually exclusive groups • At two levels of geography 2011 Census • Ethnic groups: White and Non-white • Areas: constituencies and output areas
  7. 7. POPULATION BUILDER Mapping population data for Parliament
  8. 8. What are small area population estimates? The Office for National Statistics produces annual population estimates for a range of area types • Countries • Regions • Sub-regional areas (LAs, CCGs, constituencies …) • Output areas (OAs, LSOAs, MSOAs)
  9. 9. What’s missing? 1. Natural settlement geographies - Produced every ten years for the Census 2. Custom area population estimates - School catchment areas - Housing estates - Neighbourhood populations
  10. 10. CONSTITUENCY BOUNDARIES Mapping population data for Parliament
  11. 11. 2018 Boundary Review • Number of constituencies cut by 50 to 600 • All new constituencies +/- 5% of 74,769 • Seats redistributed within regions • Three sets of proposals – Initial 2016 – Revised 2017 – Final 2018

A talk from the second Parliament, politics and data meetup

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