With the Congress of Vienna the villages were handed over to the Bavarian Kingdom and as part of the Rhenish Palatinate they became the very western border of Bavaria until the year 1946.

After World War II the region was occupied by France and kept as semi-independent Saar Protectorate until, after a referendum, it became a state of Western Germany in 1957.

On the French side the Gemeinde Gersheim borders the communes Blies-Ébersing, Bliesbruck, Obergailbach, Erching and Ormersviller of the Arrondissement of Sarreguemines in the Departement de Moselle.

This has some tradition as many men from the villages over the last centuries travelled to the industrial centres of the Saarland on a daily basis to work mainly as coal miners (Kumpel) or steel workers.

Business in Gersheim decreased noticeably since the 1980s as e. g. the number of farmers reduced and industrial enterprises like chalk mining and cement production ended.

This unfortunately led to an accumulation of public credits, leading to the Gemeinde Gersheim holding the 'first place' of having the highest dept [4] of the municipalities over many years.