UKDecides

WESTMINSTER MRP

More in Common — 21 August–21 September 2026

Fieldwork21 August–21 September 2026
Sample15,765
CommissionerMore in Common

More in Common’s September 2026 Westminster MRP, based on 15,765 GB adults.

What it means Hung parliament. Labour largest party, 76 seats short of an overall majority.

SEAT ESTIMATE

Modelled seats

Labour
250
Reform UK
147
Conservative
125
Liberal Democrat
63
SNP
27
Other
9
Plaid Cymru
6
Green
3
Restore Britain
1

All MRP charts use the same 0–650 seat scale. The vertical marker shows the 326-seat threshold for an overall majority.

MODEL RESULTS

Published result

Vote share and seat totals are reproduced from the original MRP publication where supplied.

PartyVote shareSeats
Conservative 22% 125
Labour 26% 250
Liberal Democrat 11% 63
Reform UK 24% 147
Green 8% 3
SNP 2% 27
Plaid Cymru 1% 6
Restore Britain 3% 1
Other 2% 9

MRP estimates are modelled estimates, not constituency polls or a UKDecides forecast.

More in Common published this Westminster MRP on 26 September 2026.

UKDecides reproduces the national vote shares and modelled seat totals published by More in Common.

Source: Original MRP publication