diff --git a/src/registrar/forms/application_wizard.py b/src/registrar/forms/application_wizard.py
index 1ee7e0036..a76626b1e 100644
--- a/src/registrar/forms/application_wizard.py
+++ b/src/registrar/forms/application_wizard.py
@@ -284,6 +284,9 @@ class OrganizationContactForm(RegistrarForm):
                 message="Enter a zip code in the form of 12345 or 12345-6789.",
             )
         ],
+        error_messages={
+            "required": ("Enter a zip code in the form of 12345 or 12345-6789.")
+        },
     )
     urbanization = forms.CharField(
         required=False,