Stafford: New Boundaries 2018 Calculation

Stafford: Overview

 Projection: CON seat 

Implied MP at 2017: Jeremy Lefroy  (CON)
County/Area: Staffordshire (West Midlands)
Electorate: 77,970
Turnout: 76.7%

 Implied 2017 VotesImplied 2017 Share
CON34,83358.3%
LAB21,33035.7%
LIB1,6962.8%
Green1,4222.4%
UKIP5060.8%
CON Majority13,50322.6%

See overview of other seats in West Midlands.

Stafford : Political and Demographic indicators

The table below shows some political and demographic numerical indicators for the new Stafford constituency, the 'West Midlands' area and nation.

The political measures include the Left/Right and International/National axes (what does this mean).

The demographic measures are from the 2011 Census and include categories relating to national identity, economic activity, health and education. These categories are those which have the most relevance to political attitudes.

IndicatorSeatWest MidlandsAll GB
Party WinnerCONCONCON
Economic Position8° Right2° Right
National Position9° Nat9° Nat1° Int
EU Leave %56%59%52%
British Identity27%28%29%
Good Health48%45%48%
UK Born86%89%88%
Good Education37%35%39%
Good Job58%48%51%
High SEC59%46%51%
Average Age49.448.748.5
ABC1 Class62%49%53%

Stafford ranks #226 for "Leave", #148 for "Right" and #136 for "National" out of 600 new seats.

Indicators: Legend and Descriptions

Indicators : Legend and Descriptions

The colour scheme used in the table above is explained in the legend table below. The eight census indicators (British Identity, Good Health, UK Born, Good Education, Good Job, High SEC, Average Age and AB1 Class) all use the same 'Census' colour scheme indicating whether the area's level is above or below the national average.

TopicCat 1Cat 2Cat 3Cat 4Cat 5
Economic PositionVery LeftLeftCentristRightVery Right
National PositionVery IntInternationalCentristNationalVery Nat
EU Leave %Very RemainRemainBalancedLeaveVery Leave
CensusVery LowLowMediumHighVery High

Indicator definitions are given in terms of political data definitions or census categories:

IndicatorCensus
Question
Definition / Included Census Categories
Party WinnerArea party winner : actual election result or projected by Electoral Calculus
Economic PositionEconomic position between 100° Left and 100° Right, estimated by Electoral Calculus from political and demographic data.
National PositionNational position between 100° International and 100° National, estimated by Electoral Calculus from political and demographic data.
EU Leave %EU Referendum vote share for 'Leave' : actual result or estimate
British IdentityNational Identity (KS202)Those answering British, British-Other, or Scottish-British
Good HealthHealth (KS301)Those answering 'Very Good Health'
UK BornCountry of Birth (QS203)Those answering England, Northern Ireland, Scotland, Wales, GB Other, or UK Other
Good EducationHighest level of Qualification (QS501)Level 3 (A-level equivalent) or Level 4+ (degree equivalent)
Good JobOccupation (QS606)Occupation codes 1xx to 4xx (Managers, Professionals, Associates, and office workers)
High SECNS-SeC of Household Reference Person (QS609)National Statistics Socio-economic Classification from 1 to 4 (higher managers and professionals, lower managers and professionals, intermediate occupations, small employers and self-employed).
Average AgeAge (QS103)Average age of adults (18 years and above)
ABC1 ClassApproximated Social Grade (QS611)Approximated social grades A, B and C1

Stafford: Map

Boundary Lines courtesy of Ordnance Survey OpenData © Crown copyright 2015

Introduction

This page shows the detail of the calculations performed to estimate the general election result for 2017 had the new boundaries for Stafford been in force at that time. The basic idea of the calculation is to look at the district council wards which make up the new seat, and estimate how they voted in 2017. This estimate is based on the recent local election results in those wards, with adjustments made to allow for different turnouts and different voting patterns for local and general elections.

In many cases, wards are divided between several old constituencies or between new constituencies. So the same ward may be shown more than once, but the electorate shown will reflect that ward sub-section.

Election results from a recent local election are given. This is usually the local election closest to 2015 from the period 2012-2015. For multiple-member wards, the votes shown are the sum of the votes cast for all candidates of each party. A negative number indicates candidate(s) elected unopposed.

Calculation method

There are two problems with using the raw (actual) local election results to imply general election results ward-by-ward. Firstly, turnout can be different between local and general elections, which means that the total number of local votes cast does not equal the number of votes cast in each old seat at the general election. To correct for this, we adjust the local votes to match the general election turnout. Each ward's result is scaled, whilst keeping constant the percentage support for each party, so that the total turnout adds up to the old seat's general election turnout. All wards in the old seat are assumed to have the same percentage turnout.

Secondly, even though we now have the correct number of votes in the old seat, the party totals will not match the general election result. Some parties do better at the local election than the general election, and others do vice versa. We call these strong and weak parties respectively. The next step is to transfer votes from strong parties to weak parties. This is done by taking votes proportionally away from strong parties and putting them in a transfer pool. For instance if a party got 12,500 local votes, but only 10,000 general election votes, it will lose 20% over all the wards. These votes in each ward will be put in the ward's transfer pool and allocated to the weak parties. Weak parties will get votes transferred to them in proportion to the votes they need over the old seat. For instance, if two weak parties need 4,000 and 1,000 votes respectively, the first party will get 80% of each ward's transfer pool and the second party will get 20% of each ward's transfer pool. The transfer of votes between parties is done using the Electoral Calculus Transition Model.

More details of the calculation formulas are available.

List of old seats forming part of Stafford

The old seat(s) needed are:

Old seat: Stafford

The table shows the transfer-adjusted results for each ward in the old seat of Stafford, as well as showing which new seat each ward is in.

Old seat: StaffordTransfer-adjusted Results
DistrictWardElectorate
2017
New SeatCON
Votes
LAB
Votes
LIB
Votes
UKIP
Votes
Green
Votes
NAT
Votes
MIN
Votes
OTH
Votes
Total
Votes
South StaffordshirePenkridge North East and Acton Trussell2,628Stafford1,67329720220001,994
South StaffordshirePenkridge South East3,302Stafford1,761693320200002,506
South StaffordshirePenkridge West1,509Stafford82228629070001,144
South StaffordshireWheaton Aston, Bishopswood and Lapley2,940Stafford1,90730650120002,230
StaffordBaswich4,671Stafford2,0601,2471720640003,543
StaffordCommon3,005Stafford8231,2629301010002,279
StaffordCoton5,429Stafford1,6742,2211420810004,118
StaffordDoxey and Castletown2,401Stafford7948468201000001,822
StaffordForebridge2,468Stafford6159799701800001,871
StaffordHaywood and Hixon4,638Lichfield2,0791,2431180790003,519
StaffordHighfields and Western Downs5,113Stafford1,6972,035620860003,880
StaffordHolmcroft5,106Stafford2,0641,6001320760003,872
StaffordLittleworth4,469Stafford1,5291,59415801100003,391
StaffordManor5,191Stafford1,8171,974830640003,938
StaffordMilford2,242Stafford1,094524680140001,700
StaffordMilwich1,598Stafford97216290700001,213
StaffordPenkside2,818Stafford8811,187480230002,139
StaffordRowley2,245Stafford971617440700001,702
StaffordSeighford and Church Eaton2,314Stafford1,252446360220001,756
StaffordWeeping Cross and Wildwood4,359Stafford1,9391,1751280640003,306
 Total68,446 28,42420,6941,54001,26500051,923

The full details of these calculations are given on the Stafford seat details page. Click on "Show workings".

Old seat: Stone

The table shows the transfer-adjusted results for each ward in the old seat of Stone, as well as showing which new seat each ward is in.

Old seat: StoneTransfer-adjusted Results
DistrictWardElectorate
2017
New SeatCON
Votes
LAB
Votes
LIB
Votes
UKIP
Votes
Green
Votes
NAT
Votes
MIN
Votes
OTH
Votes
Total
Votes
Newcastle-under-LymeLoggerheads and Whitmore5,602Newcastle-under-Lyme3,16074945191600004,133
Newcastle-under-LymeMadeley3,393Newcastle-under-Lyme1,2151,00118245600002,503
StaffordBarlaston2,284Stoke-on-Trent South and Stone1,321288215230001,685
StaffordEccleshall5,346Stafford2,954569115295110003,944
StaffordFulford4,798Stoke-on-Trent South and Stone2,3019991478380003,538
StaffordGnosall and Woodseaves5,147Stafford2,71579392169270003,796
StaffordMilwich3,037Stafford1,81718727241850002,240
StaffordSeighford and Church Eaton1,902Stafford1,0023304018130001,403
StaffordSt Michael's and Stonefield8,519Stoke-on-Trent South and Stone3,4062,247448104780006,283
StaffordSwynnerton and Oulton4,606Stoke-on-Trent South and Stone2,59062813918240003,399
StaffordWalton4,672Stoke-on-Trent South and Stone1,8191,28324178250003,446
Staffordshire MoorlandsCheadle North East2,991Staffordshire Moorlands97591513717370002,207
Staffordshire MoorlandsCheadle South East2,931Staffordshire Moorlands9919931403180002,163
Staffordshire MoorlandsCheadle West3,955Staffordshire Moorlands1,6171,02920232370002,917
Staffordshire MoorlandsCheckley4,574Staffordshire Moorlands2,20297312354220003,374
Staffordshire MoorlandsForsbrook4,068Staffordshire Moorlands1,5281,134125174400003,001
 Total67,825 31,61314,1182,2241,36970800050,032

The full details of these calculations are given on the Stone seat details page. Click on "Show workings".

New seat: Stafford

The new seat of Stafford is made up of the following wards, with the transfer-adjusted votes shown.

New seat: Stafford
DistrictWardElectorate
2017
Old Seat CON
Votes
LAB
Votes
LIB
Votes
UKIP
Votes
Green
Votes
NAT
Votes
MIN
Votes
OTH
Votes
Total
Votes
South StaffordshirePenkridge North East and Acton Trussell2,949Stafford1,67329720220001,994
South StaffordshirePenkridge South East3,377Stafford1,761693320200002,506
South StaffordshirePenkridge West1,758Stafford82228629070001,144
South StaffordshireWheaton Aston, Bishopswood and Lapley3,191Stafford1,90730650120002,230
StaffordBaswich4,993Stafford2,0601,2471720640003,543
StaffordCommon2,629Stafford8231,2629301010002,279
StaffordCoton4,080Stafford1,6742,2211420810004,118
StaffordDoxey and Castletown2,334Stafford7948468201000001,822
StaffordEccleshall5,074Stone2,954569115295110003,944
StaffordForebridge2,071Stafford6159799701800001,871
StaffordGnosall and Woodseaves5,177Stone2,71579392169270003,796
StaffordHighfields and Western Downs4,769Stafford1,6972,035620860003,880
StaffordHolmcroft5,334Stafford2,0641,6001320760003,872
StaffordLittleworth4,282Stafford1,5291,59415801100003,391
StaffordManor5,150Stafford1,8171,974830640003,938
StaffordMilford2,438Stafford1,094524680140001,700
StaffordMilwich1,477Stafford961120128880001,189
StaffordMilwich2,808Stone1,82822924161670002,264
StaffordPenkside2,411Stafford8811,187480230002,139
StaffordRowley2,364Stafford971617440700001,702
StaffordSeighford and Church Eaton2,537Stafford1,2374264210190001,734
StaffordSeighford and Church Eaton2,086Stone1,017350348160001,425
StaffordWeeping Cross and Wildwood4,681Stafford1,9391,1751280640003,306
 Total77,970 34,83321,3301,6965061,42200059,787

And these are the implied results for 2017 for the new seat of Stafford.


© 2017 Martin Baxter
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