Photo: Xynorath · CC BY-SA 3.0A flood study covers Brampton: 14 on the national inventory, the newest from Toronto Regional Conservation Authority
Fire has left almost no mark near Brampton: 0% of the land within 25 km since 1986, 0.000% a year. Shaking is about as much of a worry in Brampton as in most places, at $0.030 a year per $1,000 of building value ($0.030 typical). Radon is lower than usual: 0% of tested homes in the survey area topped the guideline, against 6.6% for the typical town.
What stands out about Brampton’s hazards
For Brampton, from NRCan’s seismic model, Health Canada’s radon survey, the national burned-area record and the flood map inventory.
What Brampton faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Hazard risk in Brampton: the grade is still to come
Two inputs always count for Brampton, earthquakes and radon; the third, wildfire, counts only against a town.
How sure: The seismic figure is a long-run average from NRCan’s model, not a prediction. The burned-area record misses fires under about 10 ha and most grass and farm fires.
Wildfire is rare near Brampton: 0% of the land within 25 km burned since 1986, 0% within 5 km
Fires mapped since 1986 around where Brampton’s residents live, and the fuel next to their homes.
Low by Canadian standards: 0.000% of the land a year around Brampton, 0.000% for the typical Canadian town.
Homes in Brampton sit on open or built-up ground (0.5% forest fuel within 5 km); the wider 25 km holds 7%.
Shares of land within 5 and 25 km of populated blocks: burned at least once in 1986–2025 (CWFIS burned-area composite), forest fuel and grass (fire behaviour fuel types, 2026, 250 m grid).
Burn rate a year, towns in Ontario · highest of 872
Little or nothing burns around Brampton in a typical year; 639 of the 872 towns in Ontario share that, and Sioux Lookout leads at 0.16%.
Each bar: the yearly average share of land within 25 km of a town’s homes that burned, 1986–2025 (CWFIS); the seven highest towns of 2,500 people or more.
Brampton shares the low band with 92% of Canada’s 2,610 towns, its burn rate rounding to nothing; 7.5% burn faster.
Bands of the yearly burn rate: low under 0.05%, moderate under 0.25%, high under 1%, very high 1% or more; towns of 2,500 people or more.
Fire danger and active fires (CWFIS)
Canadian Wildland Fire Information System: National Burned Area Composite 1986–2025 and fire behaviour fuel types (2026), Natural Resources Canada. Measured within 25 km and 5 km of each populated dissemination area; past fire, not a forecast.
Flooding around Brampton is mapped in 14 studies, the newest by Toronto Regional Conservation Authority
Flood studies whose area touches Brampton, from NRCan’s inventory, each linked to its owner.
The newest of 14 studies covering Brampton is Toronto Regional Conservation Authority’s, from 2021; open its map to see the zones.
| Study | By | Year | Status |
|---|---|---|---|
| Toronto Floodline Consolidation | Toronto Regional Conservation Authority | 2021 | final |
| East Credit | Credit Valley Conservation Authority | 2016 | final · not public |
| Credit River | Credit Valley Conservation Authority | 2008 | final · not public |
| West Credit River | Credit Valley Conservation Authority | 2008 | final · not public |
| Credit River | Credit Valley Conservation Authority | 2007 | final · not public |
| Credit River | Credit Valley Conservation Authority | 2006 | final · not public |
| Huttonville Creek | Credit Valley Conservation Authority | 2006 | final · not public |
| Credit River | Credit Valley Conservation Authority | 2005 | final · not public |
6 more studies on the inventory touch Brampton.
Towns with a flood study on file
Mapping in Ontario reaches 69% of towns, Brampton included, beside 58% across Canada.
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
Mapping around Brampton began in the 1990s; the 2000s saw the most work (9 of 14 studies), the latest in the 2020s.
Study dates as the NRCan inventory lists them, one count per study touching Brampton.
Flood studies don’t enter the grade; they are listed so you can open the official map for Brampton.
The inventory’s own caution (NRCan): “The Canada Flood Map (CFM) does not include every flood hazard map in Canada and may be incomplete or contain inaccuracies. It should not be relied upon as the official source of flood mapping information. Furthermore, if a map appears to be missing, this does not necessarily mean that the area has never been mapped. For the official version of a map, updated information, or confirmation of applicable regulations, please contact the local authority responsible for flood mapping.”
Natural Resources Canada, Canada Flood Map Inventory; links go to each study’s owner.
Expected shaking damage in Brampton: $0.030 a year per $1,000
NRCan’s seismic risk model: the damage shaking is expected to do to buildings each year, on average over many years.
With $0.030 of shaking damage a year per $1,000, Brampton sits right at the typical $0.030.
Shaking damage a year per $1,000 of building value
Earthquake risk in Ontario peaks in Alexandria ($0.21); Brampton, at $0.030, is below the median of $0.043.
NRCan seismic risk model (2022): mean yearly building loss per $1,000 of value; medians of towns of 2,500 people or more.
Brampton sits mid-range among Canada’s 2,611 towns: 48% expect more shaking damage.
Each column: the share of Canada’s towns of 2,500 people or more in that range of yearly loss per $1,000 (NRCan, 2022).
Only shaking damage to buildings in Brampton is counted; landslides, liquefaction, tsunami and fire after a quake aren’t.
Natural Resources Canada, Canada’s Seismic Risk Model (2022), by census subdivision (2016 boundaries; a few 2021 subdivisions take their residents’ mean).
Radon runs low around Brampton: 0% of tested homes over the guideline
Health Canada’s survey of long-term home tests: the share above the 200 Bq/m³ guideline.
Brampton’s area, at 0%, is below the 6.6% of the typical Canadian town, though any one home can still be high.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Radon runs lower around Brampton than in most towns in Ontario: 0% against 4%.
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
The quietest radon band, under 5%, holds 37% of Canada’s 2,611 towns and Brampton; 63% sit higher.
Each bar: the share of Canada’s towns of 2,500 people or more whose survey area had that share of tests over 200 Bq/m³.
Whatever Brampton’s area share, the reading that matters is your own home’s, over a winter.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011). · Area behind the radon tests figures: the Peel Regional Health Unit
Where to get warnings in Brampton
Alerts for Brampton come from Environment and Climate Change Canada and, for emergencies, Alert Ready.
| Alert | What it means |
|---|---|
| Warning | Severe weather is happening or about to: act now. |
| Watch | Conditions favour severe weather: be ready. |
| Advisory | Weather that is less severe but could disrupt the day. |
| Special weather statement | Unusual weather worth knowing about. |
| Special air quality statement | Poor air, often wildfire smoke. |
Alert Ready carries evacuation orders for Brampton to phones; CWFIS shows the day’s fire danger.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
How Brampton’s neighbours compare on hazards
The same four hazards for the places next door.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Brampton | Low | $0.030 | 0% | Yes |
| Lakelands Village 9,636 · 0.4 km | Low | $0.030 | 0% | Yes |
| N-Section (bramalea) 7,513 · 1.2 km | Low | $0.030 | 0% | Yes |
| Madoc 13,160 · 1.3 km | Low | $0.030 | 0% | Yes |
| Centre 17,851 · 1.6 km | Low | $0.030 | 0% | Yes |
| Bramalea Woods 6,521 · 1.6 km | Low | $0.030 | 0% | Yes |
| Heart Lake South 19,573 · 2.1 km | Low | $0.030 | 0% | Yes |
Lakelands Village (low) has the heaviest fire record of Brampton’s neighbours, and Brampton (low) matches or beats it.
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Brampton faces
What to do about the hazards Brampton faces, and what to ask before you buy.
- Test for three months in winter.
- Over 200 Bq/m³: fix it.
- Kits are cheap; pros test too.
- Never drive through floodwater.
- Move papers and medicines upstairs.
- Ask whether your street is mapped.
- Clear needles and wood nearby.
- Keep a grab-and-go bag ready.
- In smoke, stay in; filter air.
- Has it had a radon test?
- Check the address on the flood map.
- Are flood and wildfire insured?
What this data can and can’t tell you
- Radon is a survey. Radon figures pool the survey’s home tests by area: postal areas once their boundaries arrive, the 2007 health region around Brampton until then.
- Wildfire counts one way. Burned land within 25 km of where people live, averaged over 1986–2025 and checked for fuel near homes, is the measure; it looks back, not ahead, and only ever counts against Brampton.
- Flood studies aren’t flood zones. Flood studies cover areas of every size, which is why the page lists them for Brampton without grading them.
- Earthquakes are modelled. The earthquake figure is an expected loss, not a forecast, worked out by NRCan for each census subdivision, Brampton’s included.
Questions about flooding and hazards in Brampton
Does Brampton flood?
A flood study covers Brampton on Canada’s Flood Map Inventory; open the owner’s map to check a street, since flood isn’t graded.
Is radon a problem in Brampton?
Around Brampton, 90 survey homes were tested and 0% came in over 200 Bq/m³, a guide to the area, not to any one home.
Is Brampton at risk of wildfire?
No meaningful wildfire history near Brampton: 0% of nearby land since 1986, band low.
How big is the earthquake risk in Brampton?
About $0.030 a year per $1,000 of building value, NRCan’s long-run expectation for Brampton.
How is Brampton’s Hazard risk Grade worked out?
Not so far for Brampton; its Hazard risk letter waits for Canada’s grading run.
Seismic risk: Natural Resources Canada. Radon: Health Canada. Wildfire: Canadian Wildland Fire Information System. Flood studies: Natural Resources Canada, Canada Flood Map Inventory. Contains information licensed under the Open Government Licence – Canada.
Sources: NRCan, Canada’s Seismic Risk Model 2022 · Health Canada, Cross-Canada Survey of Radon Concentrations in Homes · CWFIS, National Burned Area Composite and FBP fuel types · NRCan, Canada Flood Map Inventory. Under the Statistics Canada Open Licence.
Adapted from Statistics Canada (Census of Population 2021, population estimates 2025, 2021 census boundaries) under the Statistics Canada Open Licence; this does not constitute an endorsement by Statistics Canada. Neighbourhood names in some cities © OpenStreetMap contributors (ODbL).