[4] The thickest part of Hefersweiler's built-up area stretches along the crossing of the road through the Odenbach valley (Talstraße) and those that branch off towards Wolfstein, Relsberg and Seelen.

As early as 1805, Hefersweiler villagers discovered nearby, between the roads to Wolfstein and the Ausbacherhof, a Roman villa rustica.

A Huberweistum (a Weistum – cognate with English wisdom – was a legal pronouncement issued by men learned in law in the Middle Ages and early modern times; Huber refers to farmers who owned a whole Hube – roughly “oxgang” – of land) was put in writing in 1597; it was renewed in 1652 as a constituent document of the Reipoltskirchen lordship's Weistümer (the plural).

Philipp von Bolanden, who was married to Waldgravine Beatrix, removed the village from the Monastery's ownership.

Waldgravine Beatrix later married Theoderich von Heinzenberg, who in 1225 gave the village back to the Monastery.

In 1492, the abbot of Otterberg Abbey issued a letter of entailment to the landowners in Berzweiler, according to which the estates were hereditarily transferred to them.

[7][8] In the 16th century, the knight Sir Johannes, who was now and then Franz von Sickingen’s brother-in-arms, was important for the Imperial lordship's, and therefore also Hefersweiler's, history.

His daughter-in-law Amalia wed, as her second husband, Count Philipp I of Leiningen-Westerburg, who introduced into all his landholds, including the lordship of Reipoltskirchen and therefore Hefersweiler too, the Reformation.

In the time that followed, there were further divisions of the lordship, which often left it subject to several lords, although it remained a cohesive territorial unit.

In the course of the 1778 Kübelberg Exchange, though, the village passed back to Electoral Palatinate, but was forthwith incorporated into the realm of the Lordship of Reipoltskirchen, which at that time was transferred to Countess Caroline von Isenburg.

[9] In 1793, French Revolutionary troops seized the Lordship of Reipoltskirchen and thereby also the neighbouring villages of Hefersweiler and Berzweiler.

This mairie in turn lay in the Canton of Wolfstein, the Arrondissement of Kaiserslautern and the Department of Mont-Tonnerre (or Donnersberg in German).

After the 1814 reconquest of the German lands on the Rhine’s left bank by Prussian, Austrian and Russian troops, the region passed after a transitional period to the Kingdom of Bavaria.

By the time of the 1933 Reichstag elections, after Hitler had already seized power, local support for the Nazis had swollen to 83.3% in Hefersweiler and 80.2% in Berzweiler.

Hitler's success in these elections paved the way for his Enabling Act of 1933 (Ermächtigungsgesetz), thus starting the Third Reich in earnest.

During the 20th century, there was a fundamental shift away from farming, with ever fewer villagers working the land and ever more commuting as workers and employees to jobs in the industrial towns nearby and even farther afield.

The following table shows population development over the centuries for Hefersweiler, with some figures broken down by religious denomination:[12] The following table shows population development over the centuries for Berzweiler, with some figures broken down by religious denomination:[13] The following table shows population development since amalgamation for the merged municipality:[14] The bigger village's name, Hefersweiler, has the common German placename ending —weiler, which as a standalone word means “hamlet” (originally “homestead”), to which is prefixed an element that according to researchers Dolch and Greule goes back to a personal name “Hunfrid”.

As for the Ahlenbornerhof, the ending —hof means “farm” or “estate”, and the syllables to which that is suffixed apparently refer to an old spring, for the homestead once lay near one (this would be bei einem alten Brunnen in Modern High German).

[15] Inhabitants of both constituent villages, Hefersweiler and Berzweiler, converted during the Reformation to Lutheranism under the principle of cuius regio, eius religio.

The arms have been borne since 1975 when they were approved by the now defunct Rheinhessen-Pfalz Regierungsbezirk administration in Neustadt an der Weinstraße.

While in earlier times farming was the main means whereby villagers could earn a living, today very few work the land.

Within Hefersweiler's municipal limits were two collieries, the Jakobsgrube and the Heinrichsgrube, which together employed about 10 workers in the 19th century.

The reconstruction planned for 1702 at first failed to win lordly approval, but eventually the project was allowed to proceed in 1714.

Since the Reformation had been introduced into both Hefersweiler and Berzweiler, schoolteachers may have been teaching children even before the Thirty Years' War.

Johann Jakob Dörr was much given to hunting and it was thus deemed fit to transfer him to Nothweiler as punishment for this unfortunate vice.

During the First World War, this schoolhouse served as a prison camp, and schoolchildren had to attend classes in nearby Hefersweiler.