Backcountry first aid · CA

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·   Range map · Canada   ·

Are there ticks
where I live?

The shaded areas show where blacklegged ticks — the ones that carry Lyme — are known to live. The dots show where ticks have actually been spotted by Canadians in the past two years.

Interactive map

How to read it

What you're looking at.

The rust-shaded areas

Confirmed Lyme risk.

These are the parts of Canada where blacklegged ticks have established populations and Lyme transmission has been confirmed. If your bite happened inside one of these areas, take the timeline seriously and consider seeing a pharmacist or doctor.

The species shading

Where each kind lives.

Pick a species in the legend and the provinces will colour in: solid where the tick is established, medium where it’s arriving, light where it’s only been spotted occasionally. Provinces with no recorded population stay uncoloured.

The dots

Recent sightings.

Each dot is a tick someone found and had identified by an expert in the last two years. A sparse area means few have been reported there — not that none are there. Locations are nudged slightly for privacy.

A note on the west coast

BC’s blacklegged tick.

The blacklegged tick along the BC coast is a close cousin of the eastern one. It carries the same risks. Different maps sometimes treat the two as separate species, so the BC picture can look thinner on national maps than it really is. The dots fill that gap in.

Related

More from the field guide.

Sources: the Public Health Agency of Canada and iNaturalist. Last refreshed May 30, 2026.

Last reviewed

General information only — not medical advice. In an emergency, call 911. Read the full disclaimer.

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