How we measure schools, catchments and markets

Every school's EQAO composite is a single 0–100 figure built only from that school's published results, rounded to a whole percent. It reflects the 2024–2025 assessment.

Secondary schools: the average of the Grade 9 Math and OSSLT (literacy) pass rates. Both must be published — a school missing either shows no composite rather than an unfair single-test figure.

Elementary schools: the average of Reading, Writing and Math, where each subject is first averaged across the Grade 3 and Grade 6 results that are published, so all available data is used.

A school with no published EQAO shows no composite — never a zero — so it is never unfairly compared with schools that do publish.

Each school's composite is shown next to two like-for-like benchmarks. The city average is the mean of the composites of same-level schools in that city; the board average is the mean of the composites of same-level schools across that school board. Both compare elementary with elementary and secondary with secondary — never across levels.

The deltas (e.g. “+8 pts vs city avg”) are the whole-point difference between the rounded composites, so the figures always reconcile. These benchmarks are a comparison aid shown per test relative to the local average — not a ranking of school quality, and not a prediction of any student's outcome.

Catchment boundaries are derived from the school boards' own published attendance-area data (in Halton, the Halton District School Board and Halton Catholic District School Board), and verified against the boards' official school locators before publishing.

Homes are matched to a catchment by a point-in-polygon test — a listing's coordinates are checked against each school's boundary — refreshed at every MLS® sync, so the homes shown for a catchment stay current. Verified catchment boundaries are available today across 50 cities in Durham, Halton, Hamilton, Peel, Toronto, Waterloo, Wellington and York (8 regions), with coverage expanding — coverage varies by board, and some schools currently show a profile without a mapped catchment boundary. Boundaries and eligibility can change — always confirm with the school board before relying on them.

Active listings are sourced from MLS® through the TRREB / PropTx Internet Data Exchange (IDX) program and refresh about every 15 minutes. Counts, medians, days-on-market and property mix shown for a community or catchment are aggregated from those active listings.

These reflect list-price activity, not sold data. They are not an appraisal, an opinion of value, or a guarantee of market conditions, and they change as listings change. We never publish a computed price-per-square- foot or a fabricated “market score.”

Price changes are tracked by DistrictIQ from a listing's asking price while it is active. We show the most recent change only. If a property is removed and relisted under a new MLS® number, earlier asking prices are not carried over.

A reduced asking price is a fact about the listing, not an assessment of value. DistrictIQ does not determine whether a price is above or below market.

Development Watch shows municipal planning applications — rezonings, site plans, subdivisions and Official Plan amendments — from each municipality's open data. Oakville data comes from the Town of Oakville's Planning and Development Applications, used under the Open Government Licence — Town of Oakville and normalized by DistrictIQ. The raw municipal status is preserved alongside our normalized status.

A proposal is not an approval, and proposed units are not homes guaranteed to be built. Unit totals are counted once per site — related applications on the same site are not added together. Distances are approximate, measured to the municipality's mapped application location. The Town of Oakville does not endorse DistrictIQ.

We don't combine EQAO results into one overall ranking, we don't invent sold-price or valuation figures, and we don't present our market aggregates as advice. EQAO is one factor among many that families may consider, and school boundaries should always be confirmed directly with the board.

For the data sources behind these figures, see where our data comes from. For the full legal disclosures, see the disclaimer. To explore the data itself, browse schools and catchments and communities.