The Ohmbach itself rises north of the village inside Selchenbach’s limits at an elevation of 400 m (1,300 ft) above sea level.

Particularly on the left bank, the slope climbs up steeply from the village, likewise to a height of roughly 400 m (1,300 ft) above sea level.

Not quite as steep is the land on the right bank, spreading out from which, southwards, is the greater part of the municipal area.

Beneath this peak stretches the Langenbach air sport grounds, where motorized aircraft and gliders can take off and land.

[4] The village runs mostly along the brook’s right bank for more than two kilometres, along a road that leads from Landesstraße 350 through to Bundesstraße 420.

New building zones arose on the slope over on the left bank and in the dales of smaller brooks that flow into the Ohmbach.

[6] Langenbach lay in the so-called Remigiusland around Kusel, a part of the original Imperial Domain (Reichsland) around Kaiserslautern, which was donated in the late 6th century by a Frankish king to the Archbishopric of Reims.

A younger line of the Counts of Veldenz, founded about 1270 by Heinrich von Geroldseck, died out in 1444.

[7] Langenbach shared a history with the Duchy of Palatinate-Zweibrücken up until that state was swept away in the events of the French Revolution.

In Johannes Hofman's 1588 description of the Amt of Lichtenberg, it says: "The twelfth main ground has its origin and beginning up above at the thicket called im Hähn, and stretches thence by the villages of Oberlangebach, Niederlangebach, Herßweiler and Pfedersheim below which it takes in the Crofftelbacher Grundt, going on down towards the Ombach on the border."

Like all the Kusel region's villages, Langenbach, too, suffered greatly under the effects of the Thirty Years' War.

Newcomers bolstered the population somewhat, but then came more losses with French King Louis XIV's wars of conquest towards the end of the 17th century.

Langenbach now lay in the Mairie ("Mayoralty") of Konken, the Canton of Kusel, the Arrondissement of Birkenfeld and the Department of Sarre.

After French rule ended, Langenbach lay beginning in 1816 in the Baierischer Rheinkreis, a new exclave of the Kingdom of Bavaria created by the Congress of Vienna, and more locally in the Landkommissariat (later Bezirksamt and Landkreis or district) of Kusel, the Canton of Kusel and the Bürgermeisterei ("Mayoralty") of Konken.

By the time of the 1933 Reichstag elections, after Hitler had already seized power, local support for the Nazis had swollen to 88.0%.

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

[9] Langenbach remained characterized mainly by agriculture until recent years, reflecting the villagers’ conservative attitude towards their way of living.

Even in earlier days, though, there were workers in the nearby quarries and at the collieries and ironworks in the Saarland, and also those who worked for farms, which were often quite big.

As author Helmut Weyrich from neighbouring Herchweiler pointed out, for instance, researchers Dolch and Greule give this date as 1385, when actually this may apply to Berglangenbach's first mention.

[12] Langenbach lay in the Remigiusland, and thereby was originally subject to the lordship of the Bishopric of Reims, although within ecclesiastical organization, it belonged to the Archbishopric of Mainz.

[13] Langenbach holds its kermis (church consecration festival, locally known as the Kerwe) on the second Sunday in November, making it the last village in the Kusel district to do so each year.

The Langenbacher Mühle was named as early as 1446 in a reckoning of accounts from the Oberamt of Lichtenberg (this is also reckoned to be Langenbach's first documentary mention, although sources differ), and there is the first Erbbestandsbrief (Erbbestand was a uniquely German landhold arrangement in which ownership rights and usage rights were separated; this is forbidden by law in modern Germany) from 1575.

Several schoolteachers from the time before the French Revolution are known by name: Philipp Heinrich Collini from 1753 to 1762, Theobald Müller to 1779, Joh.

The nearest station is Glan-Münchweiler station, which is on the Landstuhl–Kusel railway and is served by Regionalbahn service RB 67, called the Glantalbahn (the name of which refers to the Glan Valley Railway, which shared some of the route of the Landstuhl–Kusel line, including the former junction at Glan-Münchweiler).

[1] The municipality's arms might be described thus: Argent in base water of the same upon which ground with grass proper upon which a stag statant grazing gules unguled and attired Or.

The arms have been borne since 1970 when they were approved by the now defunct Rheinhessen-Pfalz Regierungsbezirk administration in Neustadt an der Weinstraße.