UNIONVILLE / CATHOLIC ELEMENTARY
All Saints Catholic Elementary School
All Saints Catholic Elementary School is located on Castlemore Avenue in Unionville, within Markham. It offers the Kindergarten to Grade 8 years through the York Catholic District School Board. Use this guide to compare the school’s historical academic result with practical information about its location and official enrolment process.
- School board
- York Catholic District School Board
- School type
- Catholic elementary
- Grades
- Kindergarten–Grade 8
- Language
- English
- Address
- 130 Castlemore Ave, Unionville L6C 2P9
- Community
- Unionville
Markham school
This is the Unionville elementary campus at 130 Castlemore Avenue, distinct from other schools named All Saints.
Planning a move
The development listings relate to Markham as a municipality. Check a proposed address with York Catholic before relying on a school assignment.
CHECK THE ADDRESS FIRST
School choice starts
with the right questions.
Attendance boundaries, programs, grade levels and admission rules can affect your options. A home’s municipality or proximity does not guarantee a place at this school.
EXPLORE THE AREA
New homes in Markham.
These projects are in the same municipality. This is not a school-boundary or admission match. Confirm the exact address with the board.
Treasure Hill
Ellia at Unity
Major Mackenzie / Warden · Markham, ON
Ellia at Unity is Treasure Hill’s townhome collection at Major Mackenzie Drive East and Warden Avenue in Markham.
The Kingsmen Group and Orca Communities
Kingshaven
Upper Markham · Markham, ON
Traditional, dual-frontage and rear-lane townhomes at the Markham–Stouffville border. Kingshaven brings family-sized layouts and a countryside-inspired streetscape together with the parks, markets and services of the surrounding communities.
Mattamy Homes
Springwater
Markham, ON
Springwater is a Mattamy community in Markham. Its current model cards show Phase 4 townhome designs, while the broader development also describes detached-home collections.
Camcos Living
The Nest Collection at Townhomes of Little Rouge
Little Rouge · Markham, ON
Modern 20-foot back-to-back townhomes with private rooftop terraces at the edge of Rouge National Urban Park in Markham.
Minto Communities & Metropia
Union Village
Unionville · Markham, ON
A new chapter of Unionville living: rear-lane and traditional townhomes alongside detached homes at 16th Avenue and Kennedy Road. Union Village pairs a broad choice of home designs with preserved natural areas, parks and planned walking and cycling connections.
Fieldgate Homes
Unionglen by Fieldgate Homes
Unionville · Markham, ON
Fieldgate’s Unionglen is a planned freehold-townhome community at Kennedy Road and Major Mackenzie Drive in Markham.
Showing 6 of 8 current project listings in this municipality.
BEFORE YOUR NEXT MOVE
Your questions,
answered.
Which school board operates All Saints Catholic Elementary School?
All Saints Catholic Elementary School is part of York Catholic District School Board. Use the official school and board links on this page for current programs, school information and registration.
Will a home listed here qualify for admission to All Saints Catholic Elementary School?
A listed project does not establish eligibility for All Saints Catholic Elementary School. The new-home suggestions are grouped by municipality, not attendance boundary. Confirm the exact home address, program, grade and admission requirements with York Catholic District School Board before relying on a school assignment.
What does the academic score for All Saints Catholic Elementary School mean?
The 2025 Fraser Institute report gives the school 9.1 out of 10 using the 2023/2024 school year. The Fraser Institute score measures selected academic indicators. It is one starting point for research, not a complete assessment of teaching, student support, wellbeing or school fit.
UNDERSTAND THE COMPARISON
A useful starting point. A broader decision.
These lists order schools by their overall Fraser Institute score in the 2025 Ontario reports, using 2023/2024 results. The elementary report was released in January 2026 and the secondary report in November 2025. These are historical academic results, not 2026 test scores.
The Fraser Institute score measures selected academic indicators. It is one starting point for research, not a complete assessment of teaching, student support, wellbeing or school fit.
Coverage. We checked all 294 rated public and Catholic schools located within York Region’s nine municipalities: 158 public elementary, 34 public secondary, 84 Catholic elementary and 18 Catholic secondary. The census includes 10 French-language school records. Public and Catholic schools are compared separately. Unrated schools are not treated as lower-rated schools. Regional positions are calculated by Offplan Canada from the published scores; they are not a separate Fraser Institute regional ranking.
Ties. Equal scores share a regional position. To display ten profiles, ties are ordered alphabetically by the current common school name, ignoring the French École prefix. A tied school outside the ten-profile selection is named on the relevant list; it is not academically lower-ranked.
Methodology source checked October 3, 2026.
Use the board’s current boundary and registration information, visit the school and discuss your child’s needs before making a school or home decision.
Sources & review notes
School details reviewed October 3, 2026. School information and academic results can change.
- York Catholic school directory — grades, address and programs Checked October 3, 2026
- Official school website Checked October 3, 2026
- York Catholic admissions and registration Checked October 3, 2026
- Fraser Institute 2025 school report Checked October 3, 2026
Independently prepared by Offplan Canada. School and board names identify the sources; they do not imply endorsement of this website or of any development.