diff --git a/frontend/src/components/map/MapWorkspace.tsx b/frontend/src/components/map/MapWorkspace.tsx
index 1c37f22f..107a994e 100644
--- a/frontend/src/components/map/MapWorkspace.tsx
+++ b/frontend/src/components/map/MapWorkspace.tsx
@@ -1357,8 +1357,15 @@ export function MapWorkspace({
     [themeInsights],
   )
   const readSelectionThemeCount = useMemo(
-    () => new Set(themeResults.map((result) => result.theme.id)).size,
-    [themeResults],
+    () => {
+      const relevantThemeIds = new Set(selectionRelevantThemes.map((theme) => theme.id))
+      return new Set(
+        themeResults
+          .filter((result) => relevantThemeIds.has(result.theme.id))
+          .map((result) => result.theme.id),
+      ).size
+    },
+    [selectionRelevantThemes, themeResults],
   )
   const activeThemeInsight = themeResults.find((item) => item.theme.id === activeThemeId)
   const activeResultDataset = activeThemeInsight?.dataset ?? activeThemeDataset