Photo: Yoshio Kohara · CC BY 3.0Flood mapping exists for Banff: 1 on record, latest by Government of Alberta
The burn rate around Banff is 0.24% a year (7.7% of the land within 25 km since 1986), a moderate band. Earthquake risk in Banff is ordinary: NRCan’s model puts building losses at $0.036 a year per $1,000 of value, close to the typical town’s $0.030. About as many homes carry radon around Banff as elsewhere, 8.1% over the guideline where the typical town has 6.6%. Banff grades B for hazard risk, with wildfire counted against it.
What stands out about Banff’s hazards
For Banff, from NRCan’s seismic model, Health Canada’s radon survey, the national burned-area record and the flood map inventory.
What Banff faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Hazard risk in Banff: B
The grade weighs Banff’s seismic risk and radon equally, and wildfire is one-sided: a high band counts against a town, a low one earns nothing.
Its place: #444 of 474 in Alberta and #1,449 of 2,589 Canadian towns.
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.
Fire reaches the land around Banff: 1.8% within 5 km, 7.7% within 25 km
Past fire around Banff’s homes, from the national burned-area record, with the fuel within 5 km.
At 0.24% of the land a year, Banff’s burn rate is moderate; the typical Canadian town sees 0.000%.
Forest crowds in on Banff: 67% of the land within 5 km is forest fuel, more than the 51% within 25 km.
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 Alberta · highest of 478
Wainwright burns fastest in Alberta at 1.43% a year; Banff, at 0.24%, ranks 11th of 478.
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.
Only 5.4% of Canada’s 2,610 towns share the moderate band with Banff, and 2.1% sit above it.
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.
A flood study covers Banff, from Government of Alberta: 1 on the inventory
What Canada’s Flood Map Inventory lists for Banff: who studied flooding and where to see their maps.
Government of Alberta holds the flood mapping that covers Banff (2013), linked below.
| Study | By | Year | Status |
|---|---|---|---|
| Banff Flood Hazard Study | Government of Alberta | 2013 | final |
Towns with a flood study on file
Only 46% of towns in Alberta have a flood study, short of Canada’s 58%; Banff is one of them.
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
Flood studies don’t enter the grade; they are listed so you can open the official map for Banff.
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.
Earthquakes cost buildings in Banff $0.036 per $1,000 a year
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
Banff’s $0.036 is close to the typical town’s $0.030 (1.2 times as much).
Shaking damage a year per $1,000 of building value
Above the middle in Alberta: Banff’s $0.036 against a median of $0.013, with Black Diamond highest at $0.048.
NRCan seismic risk model (2022): mean yearly building loss per $1,000 of value; medians of towns of 2,500 people or more.
Neither high nor low for Canada: 46% of the 2,611 towns expect more damage than Banff.
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 Banff 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 about average around Banff: 8.1% over the guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline. · Measured across the Calgary Health Region: radon tests
The survey area of Banff reads 8.1%, a shade from the typical Canadian town’s 6.6%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Radon around Banff is ordinary for towns in Alberta: 8.1%, beside a median of 7.5%.
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
A middling share of high tests puts Banff with 37% of Canada’s 2,611 towns, below 26% of them.
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.
Radon varies from house to house in Banff, so the survey is a reason to test, not a result for yours.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Where to get warnings in Banff
Alerts for Banff 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. |
Fire danger and active fires near Banff are mapped daily by the Canadian Wildland Fire Information System; evacuation orders come from the municipality or province.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
Get ready for what Banff faces
What to do about the hazards Banff faces, and what to ask before you buy.
- Clear needles and wood nearby.
- Keep a grab-and-go bag ready.
- In smoke, stay in; filter air.
- 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.
- Has it had a radon test?
- Check the address on the flood map.
- How close is the forest edge?
- 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 Banff 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 Banff.
- Earthquakes are modelled. The earthquake figure is an expected loss, not a forecast, worked out by NRCan for each census subdivision, Banff’s included.
- Flood studies aren’t flood zones. Flood studies cover areas of every size, which is why the page lists them for Banff without grading them.
Questions about flooding and hazards in Banff
Does Banff flood?
A flood study covers Banff 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 Banff?
In Health Canada’s survey, 8.1% of 86 homes tested in Banff’s area were above 200 Bq/m³, though only a test tells you about one house.
How is Banff’s Hazard risk Grade worked out?
Banff’s Hazard risk grade is B, built on earthquakes and radon with a one-sided wildfire input.
How big is the earthquake risk in Banff?
NRCan’s model expects shaking to cost buildings in Banff $0.036 a year for every $1,000 of their value, on average over many years.
Is Banff at risk of wildfire?
Less than most of Canada: 7.7% of the land within 25 km of Banff has burned since 1986, the last in 2020, a moderate band that leaves Risk alone.
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).