Stoke Poges has a real flood risk, and it comes from the sky. The rivers barely touch the village. The sea is nowhere near it. Yet about a fifth of its postcodes rate high on at least one flood measure. A village that looks safe on the river map still has to reckon with heavy rain and where it goes.
On river and sea flooding, Stoke Poges is close to clear. Under 1% of the area's postcodes fall in the Environment Agency's Flood Zone 3, the highest-probability band, and none fall in Flood Zone 2, the medium-probability fringe that sits beyond it. Those are shares of postcodes in the river-and-sea zones only, and they say nothing about rain running off roads and fields.
Surface water is a separate question, and it is the one that matters here. The Environment Agency's flood zones leave it out entirely, so a house can be outside every zone and still sit where rainwater gathers. The postcode figures further down fold surface water in, and that is where most of the village's exposure appears. For any specific house, the Environment Agency's surface-water map for that exact address is the check that counts.
Looking ahead, the Environment Agency's climate-adjusted flood zone covers under 1% of postcodes, the same small share as today's top zone. On the river-and-sea measure, the forward look adds little for Stoke Poges.
Insurance follows the measure that insurers use, which increasingly includes surface water as well as rivers. A house outside the river zones may still be quoted on its surface-water risk, so a quote for the specific address is more useful than any description of the village.
Taken postcode by postcode, about 21% of Stoke Poges postcodes rate high on at least one flood measure, about 17% medium and about 37% low. Those bands count surface water alongside rivers and sea, so they overlap with the zone figures above and cannot be added to them. "Outside the flood zone" is a fair description of almost every home here, and it answers the question about rivers when the village's question is about rain.
Counted in homes, the Environment Agency's rivers-and-sea register lists just one Stoke Poges postcode carrying any risk at all, covering 61 properties. Of those, three are rated high and five medium, with none low or very low. Postcodes with no river-and-sea risk do not appear in the register, which is why the list is this short.
On defences, the modelling records under 1% of postcodes inside the high-risk extent without defences, and the same share inside it with defences. "Defended" here means only that a defence is present in the Environment Agency's model. It describes the map, and it says nothing about whether a particular house stays dry.
The nearest tide gauge is at Portsmouth, where the sea rose by about 2 millimetres a year on average across its record from 1962 to 2023. That rate belongs to the Portsmouth coast. For an inland village in south Buckinghamshire, the nearest gauge being on the south coast is a fair measure of how little the sea features in this question.
No historic flooding is recorded in the area. That counts for something, though a quiet record covers floods someone wrote down, and surface-water flooding on a lane often goes unrecorded.
Flood risk is a weak point for Stoke Poges, though not for the reason most buyers would guess. The rivers and the sea leave it alone; heavy rain does not.