AllPollsCanada.com charts one number: the share of the national popular vote each party is credited with in a poll, in per cent. Seats are a separate question. Under first past the post a party can gain votes and lose seats, and the Bloc Québécois — which runs candidates in Quebec only — carries far more seats than its national share alone would suggest. Read these charts as vote share, not as a seat forecast.
What each part of a chart does:
- The lines. On a party page — Liberal, Conservative, NDP, Bloc Québécois, Green — every polling firm gets its own line: Nanos Research, Abacus Data, Léger, EKOS, Angus Reid, Mainstreet Research and the rest. A firm that stops publishing leaves a break in its line rather than a straight run across the gap.
- Moving around. Timeline charts zoom: use the slider below the chart, the mouse wheel over it, or drag to shift the visible window. Comparison charts do not zoom — their range is fixed at 91 days before an election down to election day itself, with earlier campaigns drawn more faintly than the latest one.
- Exact numbers. Hover to raise a vertical guide and a tooltip listing every firm at that date with its figure. A published poll shows whole percentage points; a point the line passes through between two polls is interpolated and carries one decimal, such as 2.3.
- Isolating a firm. Click a name in the legend to hide or restore that line. This is the fastest check on whether an apparent shift is in the polling generally or in one house's numbers.
- Names on the lines. With twenty or fewer lines in one chart, each name is printed at the right-hand end of its line, so you can read the chart without the legend.
- Election markers. The vertical marks are the eight federal elections from 2004 to April 2025, and the dot on each is the official result, so campaign polling and outcome can be compared at a glance.
- Record pins. A pin marks the highest or lowest a party has reached, either ever or within a recent window. On one firm's chart the tooltip says "according to Léger" — that record is that firm's, not the average's.
- Saving a chart. The camera icon at the top right downloads the chart as a PNG.
A pollster page turns the same data around: it lists that firm's most recent poll party by party, which answers "what does Abacus Data say now" rather than "how has the NDP moved". Every chart also has a plain table beneath it with the same figures in text, useful as an overview and as the fallback when the interactive chart cannot load. There are no coalition pages on this site: Canadian federal governments are formed by a single party, so there is no combined line and no majority threshold to draw.