diff --git a/app/assets/stylesheets/utils.scss b/app/assets/stylesheets/utils.scss
index 72c8b8e4e..f0cd725c9 100644
--- a/app/assets/stylesheets/utils.scss
+++ b/app/assets/stylesheets/utils.scss
@@ -50,7 +50,9 @@
   color: $black;
 }
 
-
+.text-sm {
+  font-size: 14px;
+}
 
 .mt-1 {
   margin-top: $default-spacer;
diff --git a/app/models/champs/commune_champ.rb b/app/models/champs/commune_champ.rb
index 5f3ccdc05..6a53d1101 100644
--- a/app/models/champs/commune_champ.rb
+++ b/app/models/champs/commune_champ.rb
@@ -25,4 +25,25 @@ class Champs::CommuneChamp < Champs::TextChamp
   def for_export
     [value, external_id]
   end
+
+  def name_departement
+    #FIXME we originaly saved already formatted departement with the code in the name
+    departement&.gsub(/^(.[0-9])\s-\s/, '')
+  end
+
+  def departement_code_and_name
+    "#{code_departement} - #{name_departement}"
+  end
+
+  def departement?
+    departement.present?
+  end
+
+  def code?
+    code.present?
+  end
+
+  def code
+    external_id
+  end
 end
diff --git a/app/views/shared/champs/communes/_show.html.haml b/app/views/shared/champs/communes/_show.html.haml
index 4a901ea30..a162917b4 100644
--- a/app/views/shared/champs/communes/_show.html.haml
+++ b/app/views/shared/champs/communes/_show.html.haml
@@ -1,4 +1,9 @@
 = format_text_value(champ.to_s)
-- if champ.external_id.present?
-  Code INSEE :
-  = champ.external_id
+- if champ.code?
+  %p.text-sm
+    Code INSEE :
+    = champ.code
+    - if champ.departement?
+      %br
+      Departement :
+      = champ.departement_code_and_name