Spen Valley.
Labour Party MP Kim Leadbeater holds the seat on 39.1% of the vote.
2 Jun 2026
Kim Leadbeater remains the most talked-about backbencher in Parliament thanks to the Terminally Ill Adults (End of Life) Bill -- her private member's bill legalising assisted dying in England and Wales. Critics, including a widely-shared March 2026 article, accused her of stacking the bill's scrutiny committee with supportive MPs to limit challenge, calling it a manoeuvre to "evade scrutiny." Her voting record reflects a harder line on assisted dying than the Labour average: she scores 60% against assisted dying compared to her party's 51%, and falls below the party average on end-of-life autonomy and assisted dying access -- suggesting her public role as the bill's sponsor sits alongside genuine personal ambiguity about its scope and safeguards.
Beyond the assisted dying debate, Leadbeater is a 100% party-line voter with a 92% participation rate -- above the Commons average. She consistently backs workers' rights and progressive taxation, and her stance profile shows near-total opposition to Lords scrutiny and parliamentary oversight, consistent with a loyal government MP voting to override Lords amendments on the Pension Schemes Bill and English Devolution Bill. Her 525 parliamentary contributions focus heavily on health and social care, and locally she has championed knife crime prevention and workers' rights, hosting the TUC General Secretary in Spen Valley.
Leadbeater holds a seat with a painful history -- she is the sister of Jo Cox, murdered here in 2016, and won the constituency in a 2021 by-election. She sits on the Women and Equalities Committee. Local news coverage across 106 articles in the past 90 days is broadly neutral, with crime dominating. Speech data runs to October 2025, so her parliamentary activity since then is not fully captured here.
Ward-level direction-of-travel: who controls what, who flipped recently, who holds the line.
| Ward | Latest winner | Votes | Council | Last cycle |
|---|---|---|---|---|
| Birstall Birkenshaw | Mark Thompson | 1,854 | Kirklees Con | May 2024 |
| Cleckheaton | Kathryn Mary Pinnock | 2,823 | Kirklees Con | May 2024 |
| Dalton | Munir Ahmed | 1,492 | Kirklees Con | May 2024 |
| Heckmondwike | Ali Arshad | 1,554 | Kirklees Con | May 2024 |
| Liversedge Gomersal | Caroline Jane Holt | 1,867 | Kirklees Con | May 2024 |
| Mirfield | Martyn Bolt | 2,827 | Kirklees Con | May 2024 |
Source · Democracy Club · DCLEAPIL v1.0 (CC BY-SA 4.0)
The seat’s population is concentrated in Mirfield (19,772), with Liversedge (16,206) as the second pole. Total population across named built-up areas: 96,139.
Source · ONS Built-Up Areas · Census 2021
| Settlement | Pop. | Class |
|---|---|---|
| Mirfield | 19,772 | town |
| Liversedge | 16,206 | town |
| Gomersal and Birkenshaw | 15,958 | town |
| Cleckheaton | 11,789 | town |
| Heckmondwike | 11,657 | town |
| Batley | 8,277 | large town |
Headline indicators.
| Indicator | Local | National | Δ |
|---|---|---|---|
| Employment rate | 58.0% | 57.1% | +2% |
| Owner-occupied | 69.5% | 63.1% | +10% |
| Private rented | 16.6% | 20.0% | -17% |
| Social rented | 13.6% | 16.8% | -19% |
Ethnicity.
Source · Census 2021
Population by age & sexCensus 2021 · 18 bands · click to expand
Source · Census 2021 (ONS) · % of usual residents; tick marks the median seat per band
Income tax contribution.
| Total income tax | £214m |
| Taxpayers | 47,000 |
| Median per taxpayer | £2,770 |
| Mean per taxpayer | £4,550 |
Source · HMRC SPI · ±8% confidence
Where the money flows back in.
This constituency is served by Kirklees. Each council’s service spend, peer rank and supplier list lives on its own page — open from the meta block above or the compass strip below.
Move the income slider on My place to see income tax, NI, VAT and council tax against your earnings — the household lens.
Headline rate.
By category.
Source · data.police.uk · 3-month rate per 1,000 pop
2024 — full result.
| Candidate | Votes | % | |
|---|---|---|---|
| Kim LeadbeaterWON | Lab | 16,076 | 39.1 |
| Sarah Wood | Ref | 9,888 | 24.1 |
| Laura Evans | Con | 9,859 | 24.0 |
| Martin Price | Grn | 2,284 | 5.6 |
| Javed Bashir | Ind | 1,526 | 3.7 |
| Alison Brelsford | LD | 1,425 | 3.5 |
Turnout 41,058
Prior contests.
Created on the 2023 boundary review. 2024 General Election was the first contest on these boundaries.
Sources, methods & last update
2023 boundary review
DCLEAPIL v1.0 (CC BY-SA 4.0)
Census 2021
National avg over 575 seats
±8% confidence
LSOA-aggregated · rolling 12mo