We tried Uploading our Schools database on Wikipedia but its not complete yet.
We have listed most of the Senior High Schools by Region but we have not been able to do same for JHS data since that particular data is very extensive and some standardization is needed. In due time, we will make all this lists available to the public.
See the List of SHS in the ASHANTI REGION HERE https://en.wikipedia.org/wiki/List_of_Senior_High_Schools_in_Ghana#Ashanti_Region
You can narrow the schools list down to Kumasi by using the names.
For a LIST OF JHS in Kumasi, SEE https://www.ghanaschoolsonline.com/region_select.cfm?regionID=5&levelID=1