Ontario vehicle listingsCanada's deepest provincial pool
414,103 live Ontario listings on August 30, 2026, the largest provincial pool in the Canadian half of the catalog. Scope a query to the province, compare it against every other region, and read market stats without pulling a single row.
How much vehicle inventory does the Ontario listings API cover?
The Ontario vehicle listings API is a read-only REST query over the live retail inventory advertised in the province - 414,103 listings on August 30, 2026, more than any other Canadian province or territory in the catalog, inside a national total of 19,349,581 spanning 63 states and provinces. MVRO's member dealers alone make up one third of all new-vehicle dealers in Canada, supporting 85,300 jobs and $14 billion in GDP. For a market researcher or an OEM regional analyst, the cheapest way in is /v1_2/listings/stats/region, which returns a per-region rollup with counts and price and odometer aggregates for a single aggregate charge - about 500 such calls per credit. Size Ontario against every other market first, then spend on the rows you actually need.
The province that carries Canadian inventory
414,103 live listings, ahead of Quebec, British Columbia and Alberta in the same snapshot. If your Canadian coverage is going to start with one province, it starts here - and if you cover the whole country, Ontario is still the baseline every other province gets read against. The per-region rollup gives you that ranking directly rather than making you page each province to find it.
Registered dealers, not only franchised rooftops
OMVIC, the provincial regulator, oversees more than 8,000 registered dealers and 30,000 salespeople in Ontario - a far larger population than the franchised new-car stores inside it. Because the catalog is assembled by scanning dealer websites, independents sit in it beside franchise rooftops, which is what keeps a provincial count from quietly meaning new-car dealers only.
Scoping a query to Ontario
A province code in the state filter scopes any search or stats call to Ontario, and city and postal-code prefix filters narrow it further - prefix matching works the same way on a Canadian postal code as on a US ZIP. The geo triple of lat, lon and radius_km ignores provincial and national borders entirely, which is how you build a catchment around Ottawa without dropping the Quebec side of it.
Stats before rows
/v1_2/listings/stats/region for the national rollup, /v1_2/listings/stats/ymm for one year, make and model, /v1_2/listings/mds for a days-on-market distribution scoped to the province, and /v1_2/listings/popular for the most-listed buckets. None of them require paging inventory, all of them are cheaper than the search calls they replace, and a failed call is never billed.
Ontario cities you can scope a query to
Compliance & sourcing
Every dealer selling vehicles in Ontario registers with OMVIC, the provincial regulator, so the rooftops behind these listings operate under provincial registration and the listings themselves are public retail advertisements - useful context when a published report names dealers. We collect them from dealer websites and the major aggregate platforms under one licence covering both countries. You may build and sell analysis and products derived from the data. You may not resell or redistribute the listings themselves, or a substantial portion of them, as a standalone dataset, and a market report that reproduces the underlying rows in bulk is the case those terms are written to exclude.
Industry context
Independent research on this segment, from the primary sources. We don't publish these figures — we read them off the publisher's own page, and last checked every one on .
Motor Vehicle Retailers of Ontario · Current figures
MVRO economic contribution (formerly the Trillium Automobile Dealers Association)
MVRO's 1,000+ member dealers make up one third of all new-vehicle dealers in Canada, supporting 85,300 jobs and $14 billion in GDP — one in twenty of all retail jobs in Ontario.
Read it at Motor Vehicle Retailers of OntarioOMVIC · 2025 Annual Report
Ontario Motor Vehicle Industry Council
Every dealer selling vehicles in Ontario must register with OMVIC, the provincial regulator, which oversees more than 8,000 registered dealers and 30,000 salespeople.
Read it at OMVIC
Frequently asked questions
How many vehicle listings are live in Ontario?
414,103 on August 30, 2026, the largest provincial pool in the Canadian side of a catalog holding 19,349,581 listings in total. The number is read from the production snapshot the API serves and published exactly, not rounded up, and it moves daily as dealers list and sell. /v1_2/listings/stats/region returns it beside every other region for one aggregate charge.
How do I limit a listings query to Ontario?
Filter on the state field with the province code, exactly as you would filter a US query to a state. City and postal-code prefix filters narrow it further, and sending lat, lon and radius_km together gives you a radius around any point with distance on each row. The filter changes the result set, never the price of the call.
Does Ontario coverage include independent dealers?
Yes. Ontario's registered dealer population is much larger than its franchised new-car dealer count, and the catalog is built by scanning dealer websites and the major aggregate platforms rather than from a franchise roster - so an independent store that advertises inventory online is in it, on the same schema and with the same fields as a franchise rooftop.
What Ontario market statistics can I pull?
A per-region rollup with counts and price and odometer aggregates, one year, make and model aggregate at a time, a days-on-market distribution scoped to the province, and the most-listed year, make and model buckets. Stats and taxonomy calls are 2 millicredits, so roughly 500 of them fit in a credit, and they answer most sizing questions without your ever pulling an inventory row.
More vehicle listings
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