diff --git a/app/controllers/admins/schools_controller.rb b/app/controllers/admins/schools_controller.rb
index 7e1626d98..8c4f1d59e 100644
--- a/app/controllers/admins/schools_controller.rb
+++ b/app/controllers/admins/schools_controller.rb
@@ -5,7 +5,7 @@ class Admins::SchoolsController < Admins::BaseController
 
     schools = Admins::SchoolQuery.call(params)
 
-    @schools = paginate schools.includes(:user_extensions)
+    @schools = paginate schools
 
     school_ids = @schools.map(&:id)
     @department_count = Department.where(school_id: school_ids).group(:school_id).count
diff --git a/app/queries/admins/school_query.rb b/app/queries/admins/school_query.rb
index 888cded97..3206f0858 100644
--- a/app/queries/admins/school_query.rb
+++ b/app/queries/admins/school_query.rb
@@ -17,6 +17,7 @@ class Admins::SchoolQuery < ApplicationQuery
     if keyword
       schools = schools.where('schools.name LIKE ?', "%#{keyword}%")
     end
+    schools = schools.left_joins(:user_extensions).select('schools.*, IFNULL(count(user_extensions.user_id),0) users_count').group('schools.id')
     custom_sort schools, params[:sort_by], params[:sort_direction]
   end
 end
\ No newline at end of file
diff --git a/app/views/admins/schools/shared/_list.html.erb b/app/views/admins/schools/shared/_list.html.erb
index ff0b17992..dd0a054e3 100644
--- a/app/views/admins/schools/shared/_list.html.erb
+++ b/app/views/admins/schools/shared/_list.html.erb
@@ -33,7 +33,7 @@
         <td><%= school.province %></td>
         <td><%= school.city %></td>
         <td class="text-left"><%= school.address %></td>
-        <td><%= school.user_extensions.count %></td>
+        <td><%= school.users_count %></td>
         <td><%= @department_count.fetch(school.id, 0) %></td>
         <td><%= school.created_at&.strftime('%Y-%m-%d %H:%M') %></td>
         <td>