diff --git a/.github/ISSUE_TEMPLATE/organization-identifier-proposal-template.yml b/.github/ISSUE_TEMPLATE/organization-identifier-proposal-template.yml
index 5939b44..1f2766c 100644
--- a/.github/ISSUE_TEMPLATE/organization-identifier-proposal-template.yml
+++ b/.github/ISSUE_TEMPLATE/organization-identifier-proposal-template.yml
@@ -66,6 +66,15 @@ body:
     validations:
       required: true
 
+  - type: input
+    id: size
+    attributes:
+      label: Approximately how many organizations have been issued an identifier?
+      description: Number of organizations issued an identifier under this system.
+      placeholder: e.g., 1,000,000 (estimations okay)
+    validations:
+      required: false
+
   - type: input
     id: issuing-organization
     attributes: