|o Mayor||Ralf Kierspel (CDU)|
|o Total||6.96 km2 (2.69 sq mi)|
|Elevation||271 m (889 ft)|
|o Density||160/km2 (410/sq mi)|
|Time zone||CET/CEST (UTC+1/+2)|
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The settlement of Aach dates to the Bronze Age. Later there also was a settlement of the Roman Empire. The current municipality was first mentioned in the year 953 under its Latin name Aquacuum. Despite being situated so close to the city of Trier, it was not part of the Archbishopric of Trier. Belonging to the Benedictine monastery St. Irminen, it was reichsfrei. This prompted many Jews to settle in Aach after they were expelled from Trier in the 16th century.
During the time of the Napoleonic Wars Aach was--according to the Treaty of Lunéville 1802--a part of France. After Napoleon's ultimate defeat in 1815 Aach became a part of the new Prussian Rhineland province. Prussia itself became a part of the German Empire in 1871.
Under nazi rule between 1933 and 1945 Aach's Jewish citizens were either forced to emigrate or placed in Nazi concentration camps. Today there is no organized Jewish community in Aach anymore. The synagogue and the Jewish cemetery, however, still exist.
Aach is known for its "Viez", the typical hard cider of the region.
Aach has a council with sixteen seats. The elections in 2004 brought the CDU twelve seats, the other four went to the free voters' association FWG Aach e. V. In the same elections Mayor Josef Krein (CDU) was voted into office with nearly 74% of the votes. The last elections in 2009 brought the Christian Democrats all sixteen seats. Ralf Kierspel (CDU) was voted with 92,72% as mayor.