John Costello Catholic School
300 Strathcona Drive SW. · Calgary, AB T3H 1N9
Roman Catholic
Grades ECS–6 ECS · ElementarySchool overview
At a glance
- School type
- Catholic publicly funded separate school
- Community setting
- Census metropolitan area — Calgary
- Alberta school code
- 8558
Enrollment and staffing figures reflect the latest school year published by the cited source and may predate this directory’s current-status check. Confirm current tuition, admissions, academics, programs, accreditation and accessibility directly with the school.
Contact and location
Plan your next step
Calgary, AB T3H 1N9Open in Google Maps
Map data © OpenStreetMap contributors. The directions button opens Google Maps.
Live place information
Hours and visitor rating
View weekly hours
Data provenance
Why this listing is here
Alberta school information report, June 17, 2026 supplied the name, available location fields and institution characteristics.
Statistics Canada ODEF 2.1 source coordinates was used to place this school on the map.
Published in the current provincial government school dataset on August 29, 2026.
Dataset inclusion does not imply endorsement or accreditation. This independent site is not affiliated with the institution, a diocese or board, any government education agency, Catholic education directory, OpenStreetMap or Google.
Read the complete methodologyMore nearby options
Catholic schools near Calgary
Grades 7–9
St. Gregory School
5340 - 26 Avenue SW.
Calgary, AB T3E 0R6
Grades ECS–9
St. Joan of Arc Elementary/Junior High School
7970 Wentworth Drive SW
Calgary, AB T3H 0K2
Grades ECS–9
St. Michael School
4511 - 8 Avenue SW.
Calgary, AB T3C 0G9
Grades ECS–6
St. Thomas Aquinas School
4540 - 26 Avenue SW.
Calgary, AB T3E 0R1
Grades ECS–6
Guardian Angel School
20 Aspen Hills Dr. SW
Calgary, AB T3H 0G5
Grades ECS–9
Our Lady of the Assumption School
7311 - 34 Avenue NW.
Calgary, AB T3B 1N5