Located west of Saarlouis and along the French border, it is the seat of the villages of Ittersdorf, Ihn, Leidingen, St. Barbara, Kerlingen, Gisingen, Rammelfangen, Oberlimberg, Bedersdorf, and Düren.

In that year, the fortifications and most of the buildings were destroyed and the inhabitants were moved to the newly found town-fortress of Saarlouis.

The Treaty of Versailles created an independent and autonomous territory of Saargebiet, administered by France and the League of Nations until 1935.

Under the terms of Versailles, the citizens of the Saargebiet voted to become part of Germany, doing so in spite of Adolf Hitler having assumed power in 1933.

After World War II, Wallerfangen belonged to the newly independent, but French-controlled, Saarland.