diff --git a/docs/release-notes/version-3.2.md b/docs/release-notes/version-3.2.md
index b366d7c8f..8a57f4644 100644
--- a/docs/release-notes/version-3.2.md
+++ b/docs/release-notes/version-3.2.md
@@ -13,6 +13,7 @@
 ### Bug Fixes
 
 * [#9884](https://github.com/netbox-community/netbox/issues/9884) - Prevent querying assigned VRF on prefix object init
+* [#9885](https://github.com/netbox-community/netbox/issues/9885) - Fix child prefix counts when editing/deleting aggregates in bulk
 * [#9891](https://github.com/netbox-community/netbox/issues/9891) - Ensure consistent ordering for tags during object serialization
 
 ---
diff --git a/netbox/ipam/views.py b/netbox/ipam/views.py
index 706670cad..9ae7cd4d7 100644
--- a/netbox/ipam/views.py
+++ b/netbox/ipam/views.py
@@ -333,14 +333,18 @@ class AggregateBulkImportView(generic.BulkImportView):
 
 
 class AggregateBulkEditView(generic.BulkEditView):
-    queryset = Aggregate.objects.prefetch_related('rir')
+    queryset = Aggregate.objects.annotate(
+        child_count=RawSQL('SELECT COUNT(*) FROM ipam_prefix WHERE ipam_prefix.prefix <<= ipam_aggregate.prefix', ())
+    )
     filterset = filtersets.AggregateFilterSet
     table = tables.AggregateTable
     form = forms.AggregateBulkEditForm
 
 
 class AggregateBulkDeleteView(generic.BulkDeleteView):
-    queryset = Aggregate.objects.prefetch_related('rir')
+    queryset = Aggregate.objects.annotate(
+        child_count=RawSQL('SELECT COUNT(*) FROM ipam_prefix WHERE ipam_prefix.prefix <<= ipam_aggregate.prefix', ())
+    )
     filterset = filtersets.AggregateFilterSet
     table = tables.AggregateTable