Hertfordshire
Every election cycle we have data for, most recent first.
Cycles
Council composition as of 2026
79 councillors, by party. One square per seat. Source: opencouncildata annual snapshot — reflects the council on 1 January 2026 including by-elections and defections. Hover any seat for the party.
Most recent election (2026)
In 2026, 1 seat was up across 1 ward. The table below shows what each party actually won — alongside what they would have won if the 1 seat had been shared in proportion to votes received (how, with caveats). The Δ column is the actual seat count minus the proportional seat count — positive numbers are parties First-Past-the-Post over-represented; negative are parties it under-represented.
| Party | Votes | Vote % | Seats won | % of seats | Proportional seats | Proportional % | Δ |
|---|---|---|---|---|---|---|---|
| Conservative Party | 1,729 | 39.9% | 1 | 100.0% | 1 | 100.0% | 0 |
| Reform UK | 1,530 | 35.3% | 0 | 0.0% | 0 | 0.0% | 0 |
| Green Party | 493 | 11.4% | 0 | 0.0% | 0 | 0.0% | 0 |
| Labour Party | 438 | 10.1% | 0 | 0.0% | 0 | 0.0% | 0 |
| Liberal Democrats | 147 | 3.4% | 0 | 0.0% | 0 | 0.0% | 0 |
| Total | 4,337 | 100.0% | 1 | 100.0% | 1 | 100.0% | 0 |
Vote share vs seats won
The top bar is each party's share of votes cast in this council. Below, one square per seat, coloured by the party that won it — first the actual First-Past-the-Post result, then what a proportional method would have produced from the same vote totals. Divergence between the bar and the actual grid is the indictment of the method.
Council composition: what this election replaced
Two opencouncildata snapshots: the council immediately after the 2026 election (current) and immediately before it (2025). Only ~⅓ of seats were contested in 2026 — most of the bench is unchanged, and the cycle's effect on the overall composition is what shifts.