diff --git a/include/config.h b/include/config.h
index e9aa6943..54f592ea 100644
--- a/include/config.h
+++ b/include/config.h
@@ -52,6 +52,7 @@ public:
     void setPrettyCursors(bool enabled);
     void setMainGeometry(QByteArray, QByteArray, QByteArray, QByteArray);
     void setTilesetEditorGeometry(QByteArray, QByteArray);
+    void setRegionMapEditorGeometry(QByteArray, QByteArray);
     void setCollisionOpacity(int opacity);
     void setMetatilesZoom(int zoom);
     void setShowPlayerView(bool enabled);
@@ -65,6 +66,7 @@ public:
     bool getPrettyCursors();
     QMap<QString, QByteArray> getMainGeometry();
     QMap<QString, QByteArray> getTilesetEditorGeometry();
+    QMap<QString, QByteArray> getRegionMapEditorGeometry();
     int getCollisionOpacity();
     int getMetatilesZoom();
     bool getShowPlayerView();
@@ -92,6 +94,8 @@ private:
     QByteArray mainSplitterState;
     QByteArray tilesetEditorGeometry;
     QByteArray tilesetEditorState;
+    QByteArray regionMapEditorGeometry;
+    QByteArray regionMapEditorState;
     int collisionOpacity;
     int metatilesZoom;
     bool showPlayerView;
diff --git a/src/config.cpp b/src/config.cpp
index f12c3789..349cb0e2 100644
--- a/src/config.cpp
+++ b/src/config.cpp
@@ -141,6 +141,10 @@ void PorymapConfig::parseConfigKeyValue(QString key, QString value) {
         this->tilesetEditorGeometry = bytesFromString(value);
     } else if (key == "tileset_editor_state") {
         this->tilesetEditorState = bytesFromString(value);
+    } else if (key == "region_map_editor_geometry") {
+        this->regionMapEditorGeometry = bytesFromString(value);
+    } else if (key == "region_map_editor_state") {
+        this->regionMapEditorState = bytesFromString(value);
     } else if (key == "metatiles_zoom") {
         bool ok;
         this->metatilesZoom = qMax(10, qMin(100, value.toInt(&ok)));
@@ -196,6 +200,8 @@ QMap<QString, QString> PorymapConfig::getKeyValueMap() {
     map.insert("main_splitter_state", stringFromByteArray(this->mainSplitterState));
     map.insert("tileset_editor_geometry", stringFromByteArray(this->tilesetEditorGeometry));
     map.insert("tileset_editor_state", stringFromByteArray(this->tilesetEditorState));
+    map.insert("region_map_editor_geometry", stringFromByteArray(this->regionMapEditorGeometry));
+    map.insert("region_map_editor_state", stringFromByteArray(this->regionMapEditorState));
     map.insert("collision_opacity", QString("%1").arg(this->collisionOpacity));
     map.insert("metatiles_zoom", QString("%1").arg(this->metatilesZoom));
     map.insert("show_player_view", this->showPlayerView ? "1" : "0");
@@ -264,6 +270,12 @@ void PorymapConfig::setTilesetEditorGeometry(QByteArray tilesetEditorGeometry_,
     this->save();
 }
 
+void PorymapConfig::setRegionMapEditorGeometry(QByteArray regionMapEditorGeometry_, QByteArray regionMapEditorState_) {
+    this->regionMapEditorGeometry = regionMapEditorGeometry_;
+    this->regionMapEditorState = regionMapEditorState_;
+    this->save();
+}
+
 void PorymapConfig::setCollisionOpacity(int opacity) {
     this->collisionOpacity = opacity;
     // don't auto-save here because this can be called very frequently.
@@ -328,6 +340,15 @@ QMap<QString, QByteArray> PorymapConfig::getTilesetEditorGeometry() {
     return geometry;
 }
 
+QMap<QString, QByteArray> PorymapConfig::getRegionMapEditorGeometry() {
+    QMap<QString, QByteArray> geometry;
+
+    geometry.insert("region_map_editor_geometry", this->regionMapEditorGeometry);
+    geometry.insert("region_map_editor_state", this->regionMapEditorState);
+
+    return geometry;
+}
+
 int PorymapConfig::getCollisionOpacity() {
     return this->collisionOpacity;
 }
diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index 4738d004..0e77fffc 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -2661,7 +2661,10 @@ void MainWindow::on_actionRegion_Map_Editor_triggered() {
             return;
         }
         connect(this->regionMapEditor, &QObject::destroyed, [=](QObject *) { this->regionMapEditor = nullptr; });
-        this->regionMapEditor->setAttribute(Qt::WA_DeleteOnClose);
+        logInfo("Restoring region map editor geometry from previous session.");
+        QMap<QString, QByteArray> geometry = porymapConfig.getRegionMapEditorGeometry();
+        this->regionMapEditor->restoreGeometry(geometry.value("region_map_editor_geometry"));
+        this->regionMapEditor->restoreState(geometry.value("region_map_editor_state"));
     }
 
     if (!this->regionMapEditor->isVisible()) {
diff --git a/src/ui/regionmapeditor.cpp b/src/ui/regionmapeditor.cpp
index 1ced19b6..b6d9030b 100644
--- a/src/ui/regionmapeditor.cpp
+++ b/src/ui/regionmapeditor.cpp
@@ -899,6 +899,11 @@ void RegionMapEditor::closeEvent(QCloseEvent *event)
     } else {
         event->accept();
     }
+
+    porymapConfig.setRegionMapEditorGeometry(
+        this->saveGeometry(),
+        this->saveState()
+    );
 }
 
 void RegionMapEditor::on_verticalSlider_Zoom_Map_Image_valueChanged(int val) {