diff --git a/client/src/pages/atlas/charts/map-with-polygon-and-bubbles.tsx b/client/src/pages/atlas/charts/map-with-polygon-and-bubbles.tsx
index c9e91b0d..65b5b6ba 100644
--- a/client/src/pages/atlas/charts/map-with-polygon-and-bubbles.tsx
+++ b/client/src/pages/atlas/charts/map-with-polygon-and-bubbles.tsx
@@ -23,11 +23,11 @@ export default function MapWithPolygonAndBubbles({
 }) {
   const [searchParams] = useSearchParams();
   const geoId = searchParams.get("geo_id") || "";
-
+  
   if (isLoading) {
     return <MapSkeleton />;
   }
-
+  
   const mapOptions = {
     chart: {
       map: "countries/ie/ie-all",
@@ -137,7 +137,7 @@ export default function MapWithPolygonAndBubbles({
   }
 
   // special case : France but idToFocus === Saint-Martin
-  if (geoId === "PAYS_100" && currentId === "978") {
+  if (geoId === "PAYS_100" && currentId === "D978") {
     mapOptions.mapView["center"] = [-63.1, 18.1];
     mapOptions.mapView["zoom"] = 9;
     mapOptions.chart["height"] = "150";
@@ -152,6 +152,36 @@ export default function MapWithPolygonAndBubbles({
     mapOptions.chart["width"] = "130";
   }
 
+  // special case : collectivités
+  if (geoId === "R00") {
+    mapOptions.chart["height"] = "130";
+    mapOptions.chart["width"] = "250";
+  }
+
+  // special case : collectivités but idToFocus === Nouvelle-Calédonie
+  if (geoId === "R00" && currentId === "D988") {
+    mapOptions.mapView["center"] = [165.7, -21];
+    mapOptions.mapView["zoom"] = 5.5;
+  }
+
+  // special case : collectivités but idToFocus === Polynésie française
+  if (geoId === "R00" && currentId === "D987") {
+    mapOptions.mapView["center"] = [-149.5, -17.5];
+    mapOptions.mapView["zoom"] = 7;
+  }
+
+  // special case : collectivités but idToFocus === Saint-Martin
+  if (geoId === "R00" && currentId === "D978") {
+    mapOptions.mapView["center"] = [-63.1, 18.1];
+    mapOptions.mapView["zoom"] =  9;
+  }
+
+  // special case : collectivités but idToFocus === Wallis et Futuna
+  if (geoId === "R00" && currentId === "D986") {
+    mapOptions.mapView["center"] = [-178, -13.3];
+    mapOptions.mapView["zoom"] = 6;
+  }
+
   return (
     <HighchartsReact
       constructorType={"mapChart"}
diff --git a/client/src/pages/atlas/components/main/tabs/general.tsx b/client/src/pages/atlas/components/main/tabs/general.tsx
index c26fc557..915898f4 100644
--- a/client/src/pages/atlas/components/main/tabs/general.tsx
+++ b/client/src/pages/atlas/components/main/tabs/general.tsx
@@ -123,7 +123,9 @@ export function General() {
       .forEach((item) => {
         let polygon;
         switch (item.geo_id) {
-          case "D988":
+          // Nouvelle-Calédonie
+          case "D988": 
+          case "A40": 
             mapbubbleData.push({
               z:
                 item.data.find((d) => d.annee_universitaire === currentYear)
@@ -134,7 +136,9 @@ export function General() {
             });
             break;
 
+          // Polynésie française
           case "D987":
+          case "A41":
             mapbubbleData.push({
               z:
                 item.data.find((d) => d.annee_universitaire === currentYear)
@@ -145,7 +149,9 @@ export function General() {
             });
             break;
 
+          // Saint-Martin
           case "978":
+          case "D978":
             mapbubbleData.push({
               z:
                 item.data.find((d) => d.annee_universitaire === currentYear)
@@ -156,6 +162,19 @@ export function General() {
             });
             break;
 
+          // Wallis et Futuna
+          case "D986":
+          case "A42":
+            mapbubbleData.push({
+              z:
+                item.data.find((d) => d.annee_universitaire === currentYear)
+                  ?.effectif || 0,
+              name: item.geo_nom,
+              lat: -13.3,
+              lon: -178,
+            });
+            break;
+
           default:
             polygon =
               polygonsData.find((d) => d.originalId === item.geo_id)
@@ -226,7 +245,7 @@ export function General() {
               <div className="item ">
                 <MapWithPolygonAndBubbles
                   currentYear={currentYear}
-                  idToFocus="978"
+                  idToFocus="D978"
                   isLoading={isLoadingHistoric}
                   mapbubbleData={mapbubbleData}
                   polygonsData={polygonsData}
@@ -346,6 +365,83 @@ export function General() {
         );
       }
 
+      // cas particulier des collectivités d'outre-mer
+      if (geoId === "R00") {
+        return (
+          <>
+            <Row className="fr-my-5w">
+              <Col>
+                <Title as="h3" look="h5">
+                  <span
+                    className="fr-icon-pie-chart-2-fill fr-mr-1w"
+                    aria-hidden="true"
+                  />
+                  Répartition des effectifs étudiants dans les collectivités
+                  d'outre-mer
+                </Title>
+              </Col>
+            </Row>
+            <Row gutters>
+              <Col md={8}>
+                <Row gutters>
+                  <Col md={6}>
+                    <div className="standard-item">
+                      <MapWithPolygonAndBubbles
+                        currentYear={currentYear}
+                        idToFocus="D988"
+                        isLoading={isLoadingHistoric}
+                        mapbubbleData={mapbubbleData}
+                        polygonsData={polygonsData}
+                      />
+                      <div className="item-label">Nouvelle-Calédonie</div>
+                    </div>
+                  </Col>
+                  <Col md={6}>
+                    <div className="standard-item">
+                      <MapWithPolygonAndBubbles
+                        currentYear={currentYear}
+                        idToFocus="D987"
+                        isLoading={isLoadingHistoric}
+                        mapbubbleData={mapbubbleData}
+                        polygonsData={polygonsData}
+                      />
+                      <div className="item-label">Polynésie française</div>
+                    </div>
+                  </Col>
+                  <Col md={6}>
+                    <div className="standard-item">
+                      <MapWithPolygonAndBubbles
+                        currentYear={currentYear}
+                        idToFocus="D978"
+                        isLoading={isLoadingHistoric}
+                        mapbubbleData={mapbubbleData}
+                        polygonsData={polygonsData}
+                      />
+                      <div className="item-label">Saint-Martin</div>
+                    </div>
+                  </Col>
+                  <Col md={6}>
+                    <div className="standard-item">
+                      <MapWithPolygonAndBubbles
+                        currentYear={currentYear}
+                        idToFocus="D986"
+                        isLoading={isLoadingHistoric}
+                        mapbubbleData={mapbubbleData}
+                        polygonsData={polygonsData}
+                      />
+                      <div className="item-label">Wallis et Futuna</div>
+                    </div>
+                  </Col>
+                </Row>
+              </Col>
+              <Col md={4}>
+                <SubList />
+              </Col>
+            </Row>
+          </>
+        );
+      }
+
       if (polygonsData.length > 1) {
         return (
           <>
diff --git a/client/src/pages/atlas/components/main/tabs/styles.scss b/client/src/pages/atlas/components/main/tabs/styles.scss
index a0295d70..63c268ec 100644
--- a/client/src/pages/atlas/components/main/tabs/styles.scss
+++ b/client/src/pages/atlas/components/main/tabs/styles.scss
@@ -1,3 +1,23 @@
+  .standard-item{
+    border: 1px solid var(--border-default-grey);
+    position: relative;
+    border-radius: 5px;
+
+    .item-label {
+      position: absolute;
+      padding: 2px;
+      font-size: 10px;
+      font-weight: 500;
+      text-align: center;
+      background-color: var(--border-default-grey);
+      border-bottom: 1px solid var(--border-default-grey);
+      border-radius: 5px 5px 0 0;
+      top: 0;
+      width: 100%;
+      line-height: normal;
+    }
+  }
+
 .atlas-map {
   .item {
     width: 150px;
diff --git a/client/src/pages/atlas/components/main/tabs/sub-list.tsx b/client/src/pages/atlas/components/main/tabs/sub-list.tsx
index 8d9568fe..acc60369 100644
--- a/client/src/pages/atlas/components/main/tabs/sub-list.tsx
+++ b/client/src/pages/atlas/components/main/tabs/sub-list.tsx
@@ -53,6 +53,13 @@ export default function SubList() {
     )
   );
 
+  // Special case "Saint-Martin" (geo_id = 978)
+  dataHistoric.data.forEach(item => {
+    if (item.geo_id === '978') {
+      item.geo_id = 'D978';
+    }
+  });
+
   return (
     <Container fluid as="section">
       <Row style={{ width: "100%" }}>
diff --git a/client/src/utils.tsx b/client/src/utils.tsx
index 01e40ddd..d1a42ffe 100644
--- a/client/src/utils.tsx
+++ b/client/src/utils.tsx
@@ -49,6 +49,10 @@ function getParentFromLevel(parents, geoId) {
   if (geoId === "PAYS_100") {
     return null;
   }
+  if (geoId === "D978") {
+    return { geo_nom: parents.reg_nom, geo_id: parents.reg_id };
+
+  }
   if (geoId.startsWith("R")) {
     return { geo_nom: "France", geo_id: "PAYS_100" };
   }
@@ -61,6 +65,8 @@ function getParentFromLevel(parents, geoId) {
   if (geoId.startsWith("U")) {
     return { geo_nom: parents.reg_nom, geo_id: parents.reg_id };
   }
+  
+  // default = communes
   return { geo_nom: parents.dep_nom, geo_id: parents.dep_id };
 }
 
diff --git a/server/src/routes/tableaux/atlas/index.js b/server/src/routes/tableaux/atlas/index.js
index a6cff2d8..b263d2d6 100644
--- a/server/src/routes/tableaux/atlas/index.js
+++ b/server/src/routes/tableaux/atlas/index.js
@@ -126,13 +126,13 @@ router.route("/atlas/get-geo-polygons").get(async (req, res) => {
   }
   if (geoId.startsWith("R") || geoId.startsWith("A") || geoId.startsWith("P")) {
     const ids = await db.collection("atlas2024").distinct("geo_id", filters);
-    if (geoId.startsWith("P")) {
+    if (geoId.startsWith("P") || geoId === "R00") {
       ids.push("D988"); //Nouvelle-Caledonie
       ids.push("D987"); //Polynesie-Francaise
       ids.push("D986"); //Wallis-et-Futuna
       ids.push("D985"); //Saint-Pierre-et-Miquelon
       ids.push("D984"); //Saint-Barthelemy
-      ids.push("978"); //Saint-Martin
+      ids.push("D978"); //Saint-Martin
     }
     const polygons = [];
     for (let i = 0; i < ids.length; i++) {
@@ -355,7 +355,7 @@ router.route("/atlas/number-of-students-historic-by-level").get(async (req, res)
     query = {
       geo_id: { $ne: "R99" }, // français à l'etrangers
       $or: [
-        { geo_id: "978" },
+        { geo_id: "D978" },
         { geo_id: "D986" },
         { geo_id: "D987" },
         { geo_id: "D988" },