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Public Secondary · Newmarket

Sir William Mulock Secondary School

705 Columbus Way, Newmarket, Ontario, L3X2M7 · York Region DSB

Sir William Mulock Secondary School is a York Region DSB Public secondary school in Newmarket, serving 9-12. Homes in its catchment sit in Summerhill Estates, Glenway Estates and Central Newmarket. Every home shown below falls inside the York Region DSB-published attendance boundary — the same boundary the school board uses for enrolment.

Est. 2001

ProgramsRegular Track
74%
EQAO composite
9-12
Grades
1,190
Students
English
Language

+1 pts vs Newmarket · −6 pts vs York Region DSB

Grade 9Math 59%
OSSLTLiteracy 89%
View all EQAO results (2024–2025)
Grade 9
Mathematics
59%
Newmarket secondary avg: 58%
OSSLT
Literacy
89%
Newmarket secondary avg: 88%

Informational — not a ranking.

Is an address zoned for this school?

Check any address against Sir William Mulock Secondary School’s attendance boundary.

Homes in this Catchment

Homes zoned for Sir William Mulock Secondary School, inside its attendance boundary.

2nd most homes for sale of Newmarket's 5 ranked secondary catchments · Full Newmarket catchment league

The market inside this boundary

9 new in the last 7 days14 with a recorded price cut (15% of 92) · median cut $45K

TypeFor saleMedian askingMedian DOM
Detached50$1.3M49 days
Semi-detached6$944K35 days
Townhouse35$798K26 days
Condo apartment1

Active MLS® listings zoned inside Sir William Mulock Secondary School’s board-published regular-track boundary — matched per listing to the polygon, not by distance. Asking (list) prices, never sold prices; days on market count from each listing’s source date; “new” means listed within 7 days. A price cut is counted only when the reduction was observed while the listing was on DistrictIQ’s feed — a floor, not a census — and increases never count. Medians are blank below 5 listings. The board publishes these boundaries without stating a school year. DistrictIQ last downloaded it 2026-08-29. Listings refresh continuously.

See all 92 homes for sale in this catchment →

New homes appear inside this boundary most weeks.Get an email when one is listed

Location & Attendance Boundary

Map of Sir William Mulock Secondary School's attendance boundary in Newmarket
Sir William Mulock Secondary School attendance boundary· Boundaries can change — confirm with York Region DSB.Open interactive map →
Address
705 Columbus Way, Newmarket, Ontario, L3X2M7
Property profiles in this catchment18 addresses
Licensed childcare nearby6 centres

Licensed centres closest to Sir William Mulock Secondary School — CWELCC status shown when it's published by the local service system manager.

6 licensed childcare centres nearby
Licensed Child Care Centre
Upper Canada Child Care At St. John Chrysostom Ces
800 Joe Persechini Drive, Newmarket
0.4 km
Before & after school
Operator: Upper Canada Creative Child Care Centres Of Ontario
Licence #0002204·Child Care Centre
Licensed Child Care Centre
Terry Fox School Age Program
161 Sawmill Valley Drive, Newmarket
0.5 km
After school
Operator: Denison Child Care
Licence #0003954·Child Care Centre
Licensed Child Care Centre
Cuties & Patooties
16655 Yonge Street, Newmarket
0.6 km
Full day
Operator: 10018511 Canada Corp
Licence #57051·Child Care Centre
Licensed Child Care Centre
Kidz "R" Us Daycare
16655 Yonge St Unit 3, Newmarket
0.6 km
Full day
Operator: 5001228 Ontario Inc.
Licence #58191·Child Care Centre
Licensed Child Care Centre
Safari Kid South Newmarket
16715 Yonge Street, Newmarket
0.6 km
Full day · Half day · Before & after school
Operator: 2797548 Ontario Inc.
Licence #62033·Child Care Centre
Licensed Child Care Centre
Upper Canada Child Care At Clearmeadow Ps
200 Clearmeadow Boulevard, Newmarket
0.8 km
Before & after school
Operator: Upper Canada Creative Child Care Centres Of Ontario
Licence #0000816·Child Care Centre

Common questions

What is the Sir William Mulock Secondary School catchment?
The Sir William Mulock Secondary School catchment — also called its attendance boundary — is the area of addresses zoned for Sir William Mulock Secondary School by York Region DSB. DistrictIQ maps the board-published boundary so you can check any address and browse the homes for sale inside it.
How do I check whether an address is zoned for Sir William Mulock Secondary School?
Enter the address in the boundary checker on this page — it tests the point against York Region DSB's published attendance boundary for Sir William Mulock Secondary School and tells you whether the address is zoned for it. To check every school an address is zoned for at once, find your school by address. Always confirm current zoning with York Region DSB before you buy or rent.
What grades does Sir William Mulock Secondary School serve?
Sir William Mulock Secondary School serves 9-12 (secondary). It is part of York Region DSB.
Which school board runs Sir William Mulock Secondary School?
Sir William Mulock Secondary School is a York Region DSB school. Board policies — including boundary changes, program eligibility and registration — are set by York Region DSB, not by DistrictIQ.
Does Sir William Mulock Secondary School offer French Immersion or other program tracks?
Sir William Mulock Secondary School offers Regular Track. Program catchments can differ from the regular attendance boundary — confirm eligibility directly with York Region DSB.
How many homes are for sale in Sir William Mulock Secondary School's catchment?
As of the latest listing sync there are 92 homes for sale and 52 homes for lease in Sir William Mulock Secondary School's catchment, with a median asking price of $999K. These are homes zoned for Sir William Mulock Secondary School, inside its attendance boundary — use the explorer above to switch between homes for sale and for lease.
More questions (7)
Are detached homes available in Sir William Mulock Secondary School's catchment?
Yes. 50 of the currently listed homes inside the catchment are detached properties. The overall median asking price for the shown set is $999K.
How are catchment homes determined for Sir William Mulock Secondary School?
These are active listings whose address falls inside Sir William Mulock Secondary School's attendance boundary, based on the board's published catchment. See the interactive polygon on the Sir William Mulock Secondary School catchment map. Boundaries and program eligibility (such as French Immersion) can change — always confirm current zoning directly with York Region DSB.
Can school catchments change?
Yes. School boards periodically run boundary (accommodation) reviews and can redraw catchments as enrolment shifts or new schools open. DistrictIQ reflects York Region DSB's current published boundary, but always confirm zoning directly with the board before making a purchase decision. How Ontario attendance boundaries work
Which Newmarket communities does Sir William Mulock Secondary School's catchment cover?
Homes in Sir William Mulock Secondary School's catchment are concentrated in Summerhill Estates, Glenway Estates and Central Newmarket. Each community links to a dedicated page with neighbourhood-level market data.
How should I read the EQAO results for Sir William Mulock Secondary School?
EQAO results show the percentage of students who met or exceeded the provincial standard on each assessment, shown alongside the Newmarket secondary average for context. They are provided for information only and are not a ranking of school quality — academic outcomes are just one of many factors families may wish to consider.
How can I compare Sir William Mulock Secondary School to other schools in Newmarket?
Open the Compare tool to line up Sir William Mulock Secondary School against up to three other schools — EQAO results, grades, board and catchment status side by side.
Does living in Sir William Mulock Secondary School's catchment guarantee a spot?
Not automatically. Falling inside the attendance boundary is the basis for enrolment, but it is not an absolute guarantee — placement still depends on school capacity, program availability such as French Immersion, and board policy. Always confirm current school boundaries and registration directly with York Region DSB.

Get new listings in Sir William Mulock Secondary School's catchment

See what's for sale inside Sir William Mulock Secondary School's attendance boundary — email only, no sales calls.

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Keep exploring

Keep researching around Sir William Mulock Secondary School — homes, communities and the wider Newmarket market.

School & assessment data

EQAO results are provided for informational purposes only and should not be interpreted as a ranking of school quality. Academic outcomes are only one factor families may wish to consider. EQAO results shown reflect the 2024–2025 assessment.

School and assessment data is sourced from the Ontario Ministry of Education, the Education Quality and Accountability Office (EQAO), Ontario Open Data, and the applicable public and Catholic district school boards across the regions we cover (Southern Ontario).

School information — including school boundaries, eligibility, EQAO results, programs and enrolment — is provided for general informational purposes only and may be inaccurate or out of date. Boundaries, eligibility, programs and enrolment can change at any time. EQAO figures reflect past assessment results, are shown per test relative to the city-wide average, are not a ranking, and do not predict any student's outcome. Always confirm current school boundaries and eligibility directly with the applicable school board before relying on this information.

Where our data comes from · source, licence and refresh cadence for every dataset.

Listing data is provided by the Toronto Regional Real Estate Board (TRREB) and PropTx under the Internet Data Exchange (IDX) program. The information is deemed reliable but is not guaranteed accurate by TRREB, PropTx, CREA or DistrictIQ Inc., Brokerage, may not reflect the most current status, and is subject to errors, omissions, prior sale, change, or withdrawal without notice. Listings should be independently verified.