The municipal area was divided wholly into agricultural smallholds; there was not even one major block of land in only one owner's hands.

The basic volcanic rock deposited in between is mainly made up of melaphyre, andesite, tholeiitic basalt and cuselite.

Characteristic of this kind of climate are moderate summers and to a great extent, mild, damp winters.

In the village's east, across the Glan, a small outlying hamlet arose in the latter half of the 19th century around the old Erdesbacher Mühle (mill), the so-called “Bockhof” with four farms and a smithy.

Today, the village is almost purely a residential community for those who commute to jobs in Kusel, Kaiserslautern, Ramstein, Baumholder and even as far away as Mannheim and Ludwigshafen.

In 1902, during building work on the trackbed for the Bad Münster-Homburg railway (Glantalbahn), a grave with jugs and lance tips was discovered.

Four prehistoric barrows stand in a row on the heights along the municipal limit with Altenglan (Ortsteil of Patersbach).

According to the 1364 document in which Erdesbach's first documentary mention is found, the inhabitants of the Unteramt of Altenglan, and thus also the inhabitants of Erdesbach, had to support the young Prince Heinrich (later Heinrich III of Veldenz) and his wife Loretta of Sponheim with a special tax.

[10] Erdesbach remained with the Duchy of Palatinate-Zweibrücken until that state was swept away by the French Revolutionary troops who marched into the region and occupied it.

New families came to Erdesbach, but French King Louis XIV's wars of conquest brought further death and destruction.

During the time of Napoleon’s annexation of the German lands on the Rhine’s left bank, beginning in 1801, Erdesbach belonged to the Mairie (“Mayoralty”) of Ulmet, the Canton of Kusel, the Arrondissement of Birkenfeld and the Department of Sarre, whose seat was at Trier.

With the formation of the new state of Rhineland-Palatinate in 1947, consisting of the Regierungsbezirke of Koblenz, Trier, Montabaur, Rheinhessen and Pfalz, a new political order was created in the southwest of what was shortly to become West Germany.

[12] According to a debt book kept by the Remigiusberg Monastery, a taxation list from the Oberamt of Lichtenberg indicated that just under 100 people were living in Erdesbach in 1480.

In an examination by Michael Frey of the bayerischer Rheinkreis, a population figure for Erdesbach of 143 souls was stated, and 316 for 1837, of whom 309 were Protestant and 7 were Catholic.

Thereafter, the population figures began to shrink steadily, reaching their lowest in many years in 1988, when there were only 570 inhabitants in Erdesbach.

The opening of land to new development drew newcomers to the village and the population once again began a steady rise in 1984, reaching 640 by 1996.

The following table shows population development over the centuries for Erdesbach, with some figures broken down by religious denomination:[13] The placename's meaning, according to Professor Ernst Christman, goes back to the given name Herideo.

[17] The German blazon reads: Von schwarz und blau durch einen silbernen Wellenbalken geteilt, oben ein rot gekrönter und rot bewehrter goldener Löwe, unten eine silberne mit roten Steinen belegte Mitra mit seitlich abflatternden Bändern.

The charge below the wavy fess, a mitre, refers to Erdesbach's former feudal landlord, the Bishopric of Reims, under whose sway lay the Remigiusland.

The lion is drawn from the arms borne by the Wittelsbachs, the ruling house of the Duchy of Palatinate-Zweibrücken and later the Kingdom of Bavaria, to which Erdesbach once also belonged.

[18] The following are listed buildings or sites in Rhineland-Palatinate’s Directory of Cultural Monuments:[19] Until 1966, the more than 500-year-old Gallusmarkt (“Saint Gall’s Market”) was celebrated together with the bigger neighbouring municipality of Ulmet in the middle of the week as a kermis (church consecration festival).

In 1966, following the citizens’ wishes, and after municipal council had voted unanimously on the question, the kermis date was moved from late autumn to summer, namely the first weekend in August.

The raising of the Maypole on May Day is a job that was taken over years ago by the young men of the volunteer fire brigade.

[21] Up until the outbreak of the Second World War, men capable of working earned their livelihoods for their families mostly in the many small and few big quarries (hard rock and sandstone) as quarrymen, stone dressers or stonemasons, as craftsmen at the local craft businesses, and also as farmers as their secondary occupation at the many small secondary agricultural operations that were to be found at almost every house in Erdesbach.

In 1958, to improve the teaching-learning environment somewhat, a new classroom with a teachers’ room and a toilet facility was built onto the back of the existing Big School.

After it had been given a new outer coat of paint, the old schoolhouse presented itself as a well usable and smart village community centre.