diff --git a/synapse/storage/_base.py b/synapse/storage/_base.py
index c02248cfe94659a2980bf8deb180bb3a50e9ee88..90019c8b0af39c311f41b9fe7fc1314c26788e8b 100644
--- a/synapse/storage/_base.py
+++ b/synapse/storage/_base.py
@@ -1440,18 +1440,6 @@ class SQLBaseStore(object):
 
         return cls.cursor_to_dict(txn)
 
-    def get_user_count_txn(self, txn):
-        """Get a total number of registered users in the users list.
-
-        Args:
-            txn : Transaction object
-        Returns:
-            int : number of users
-        """
-        sql_count = "SELECT COUNT(*) FROM users WHERE is_guest = 0;"
-        txn.execute(sql_count)
-        return txn.fetchone()[0]
-
     def _simple_search_list(
         self, table, term, col, retcols, desc="_simple_search_list"
     ):
diff --git a/synapse/storage/data_stores/main/__init__.py b/synapse/storage/data_stores/main/__init__.py
index 474924c68f83c5d8d677a718ec470eb2079b48d5..76315935dd2fae396a89a9d2811c9713067a875e 100644
--- a/synapse/storage/data_stores/main/__init__.py
+++ b/synapse/storage/data_stores/main/__init__.py
@@ -516,6 +516,18 @@ class DataStore(
         retval = {"users": users, "total": count}
         return retval
 
+    def get_user_count_txn(self, txn):
+        """Get a total number of registered users in the users list.
+
+        Args:
+            txn : Transaction object
+        Returns:
+            int : number of users
+        """
+        sql_count = "SELECT COUNT(*) FROM users WHERE is_guest = 0;"
+        txn.execute(sql_count)
+        return txn.fetchone()[0]
+
     def search_users(self, term):
         """Function to search users list for one or more users with
         the matched term.