Hazard risk in Woodbridge Meadows is lower than in 90% of Canadian towns
No wildfire is mapped within 25 km of Woodbridge Meadows’ homes since 1986 (0% of the land, 0.000% a year). For earthquakes Woodbridge Meadows is middling, $0.028 a year per $1,000 against $0.030 for the typical town. In Health Canada’s survey, just 0% of homes tested in the area exceeded 200 Bq/m³ (6.6% typical). Hazard risk gives Woodbridge Meadows a grade of A, from earthquakes and radon alone.
What stands out about Woodbridge Meadows’s hazards
Four national sources, each read for Woodbridge Meadows: earthquakes, radon, past fires and flood studies.
What Woodbridge Meadows faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Hazard risk in Woodbridge Meadows: A
Risk averages earthquakes and radon; wildfire joins only where it pulls the average down, so a town like Woodbridge Meadows with little fire nearby would get no credit for it.
Its place: #74 of 866 in Ontario and #383 of 2,589 Canadian towns.
How sure: The seismic figure is a long-run average from NRCan’s model, not a prediction. Small fires and grass fires are largely missing from the national burned-area record.
Few fires near Woodbridge Meadows: 0% within 5 km, 0% within 25 km
Past fire around Woodbridge Meadows’ homes, from the national burned-area record, with the fuel within 5 km.
With 0.000% burned a year, Woodbridge Meadows is among the many low-band places (the typical Canadian town 0.000%).
Around Woodbridge Meadows the forest is thin or far off: 2.1% of the land within 5 km and 3.9% within 25 km is forest fuel.
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 871
Near-zero burning puts Woodbridge Meadows with 638 of the 871 towns in Ontario, far below Sioux Lookout 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.
Measured against 2,610 towns, Woodbridge Meadows is in the largest group, low (92%), and at its floor, while 7.5% rank higher.
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 Woodbridge Meadows, from Toronto Regional Conservation Authority: 1 on the inventory
What Canada’s Flood Map Inventory lists for Woodbridge Meadows: who studied flooding and where to see their maps.
One study on the inventory touches Woodbridge Meadows, Toronto Regional Conservation Authority’s from 2021, and its area can be large, so it says a map exists, not that the town floods.
| Study | By | Year | Status |
|---|---|---|---|
| Toronto Floodline Consolidation | Toronto Regional Conservation Authority | 2021 | final |
Towns with a flood study on file
Flood maps are common in Ontario: 69% of towns have one, against 58% nationally, and Woodbridge Meadows is among them.
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
The grade leaves flood out, since a study area says nothing about how many of Woodbridge Meadows’ homes are at risk.
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 Woodbridge Meadows $0.028 per $1,000 a year
Expected yearly building losses from earthquakes, from Natural Resources Canada’s model.
At $0.028 per $1,000, Woodbridge Meadows’ earthquake risk is about the typical Canadian town’s ($0.030; 0.9 times).
Shaking damage a year per $1,000 of building value
Below the middle in Ontario: Woodbridge Meadows’ $0.028 against a median of $0.043; Alexandria has $0.21.
NRCan seismic risk model (2022): mean yearly building loss per $1,000 of value; medians of towns of 2,500 people or more.
Middle of the pack: 51% of Canada’s 2,611 towns have more earthquake risk than Woodbridge Meadows.
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).
Roads, pipes and bridges aren’t in Woodbridge Meadows’ figure, nor landslides or tsunami: it is buildings and shaking.
Natural Resources Canada, Canada’s Seismic Risk Model (2022), by census subdivision (2016 boundaries; a few 2021 subdivisions take their residents’ mean). · Earthquake risk: one figure for all of the city of Vaughan
Little radon around Woodbridge Meadows: 0% of area homes over the guideline
Long-term radon tests in homes across the survey area, against Health Canada’s guideline.
Woodbridge Meadows’ survey area reads 0% over the guideline, under the typical Canadian town’s 6.6%. Figures for radon tests are published for the York Regional Health Unit as a whole, not for Woodbridge Meadows alone.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Fewer homes top the guideline around Woodbridge Meadows (0%) than in the typical town in Ontario (4%).
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
Radon rarely tops the guideline around Woodbridge Meadows, as for 37% of Canada’s 2,611 towns; 63% see more.
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.
The share describes the area, not a house: in Woodbridge Meadows as anywhere, test to be sure.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011).
Weather and fire alerts for Woodbridge Meadows
Environment and Climate Change Canada issues the weather alerts for Woodbridge Meadows; Alert Ready carries the urgent ones to phones, radio and TV.
| 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. |
For fires near Woodbridge Meadows, the national fire information system maps danger and active fires daily; local authorities give any evacuation order.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
How Woodbridge Meadows’ neighbours compare on hazards
Wildfire band, earthquake risk, radon and flood studies for each place nearby.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Woodbridge Meadows | Low | $0.028 | 0% | Yes |
| The Ravines of Rainbow Creek 5,333 · 1.5 km | Low | $0.028 | 0% | Yes |
| The Estates of Rainbow Creek 6,822 · 1.7 km | Low | $0.028 | 0% | Yes |
| Elder Mills 16,790 · 1.9 km | Low | $0.028 | 0% | Yes |
| Pine Grove 13,302 · 2.8 km | Low | $0.028 | 0% | Yes |
| Woodbridge 18,835 · 3.8 km | Low | $0.028 | 0% | Yes |
| Ebenezer East 27,031 · 3.8 km | Low | $0.030 | 0% | Yes |
Fire is no heavier anywhere nearby than around Woodbridge Meadows (low), with The Ravines of Rainbow Creek next at low.
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Woodbridge Meadows faces
What to do about the hazards Woodbridge Meadows 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
- Earthquakes are modelled. NRCan models what earthquakes would cost buildings each year on average, subdivision by subdivision; Woodbridge Meadows’ figure is its subdivision’s.
- Flood studies aren’t flood zones. Flood studies cover areas of every size, which is why the page lists them for Woodbridge Meadows without grading them.
- Wildfire counts one way. Wildfire is read from the national burned-area record around Woodbridge Meadows’ homes since 1986, a history of fire that may lower Risk but never raises it.
- 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 Woodbridge Meadows until then.
Questions about flooding and hazards in Woodbridge Meadows
Is Woodbridge Meadows at risk of wildfire?
Very little by the national record: Woodbridge Meadows’ band is low, with 0% of the land within 25 km burned since 1986, so wildfire doesn’t change its grade.
How is Woodbridge Meadows’s Hazard risk Grade worked out?
Woodbridge Meadows’ Hazard risk grade is A, built on earthquakes and radon with a one-sided wildfire input.
Does Woodbridge Meadows flood?
A flood study covers Woodbridge Meadows 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 Woodbridge Meadows?
In Health Canada’s survey, 0% of 95 homes tested in Woodbridge Meadows’ area were above 200 Bq/m³, though only a test tells you about one house.
How big is the earthquake risk in Woodbridge Meadows?
NRCan’s model expects shaking to cost buildings in Woodbridge Meadows $0.028 a year for every $1,000 of their value, on average over many years.
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).