The municipality lies in the Vulkaneifel, a part of the Eifel known for its volcanic history, geographical and geological features, and even ongoing activity today, including gases that sometimes well up from the earth.

On Immerath's outskirts runs Bundesstraße 421, and in Mehren near Daun is an interchange on the Autobahn A 1 (Koblenz – Trier).

Digs and finds in the 1930s on the eastern slope of the hollow in which Immerath lies – actually a volcanic crater – led to the conclusion that sometime about the 3rd century, a stately villa arose here.

A wealthy Roman, it is believed, had a whole complex of buildings built here with a main house, stabling and servants’ lodging.

In 1143, Immerath had its first documentary mention as Emgramenrode in letters patent from King Konrad II for the Springiersbach Monastery.

A donation document from Count Palatine Wilhelm in 1144 verifies that Emgramenrode had been transferred to the Springiersbach Monastery's ownership in 1136.

The red cross refers to the village's former allegiance to the Electorate of Trier and its former status as part of the Electoral-Trier Amt of Daun.

The green point formed by the mantlelike division of the field symbolizes the village's scenically charming surroundings.