Aach
Town
Coat of arms
Location of Aach within Konstanz district
Aach Show map of Germany Aach Show map of Baden-Württemberg
Coordinates: 47°50′44″N 8°51′6″E / 47.84556°N 8.85167°E / 47.84556; 8.85167
Country	Germany
State	Baden-Württemberg
Admin. region	Freiburg
District	Konstanz
Government
• Mayor (2017–25)	Manfred Ossola[1] (CDU)
Area
• Total	10.69 km2 (4.13 sq mi)
Elevation	545 m (1,788 ft)
Population  (2022-12-31)[2]
• Total	2,384
• Density	220/km2 (580/sq mi)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
Postal codes	78267
Dialling codes	07774
Vehicle registration	KN
Website	www.aach.de

Lordship of Aach Herrschaft Aach
before 1100 – 1805
Status	Lordship
Capital	Aach
Common languages	Low Alemannic
Government	Lordship
Historical era	Middle Ages
• Established, within     Further Austria	before 1100 10th century
• Rudolph I grants     city rights	1283
• Swabian War	1499
• Occupied: German     Peasants' War	1525
• Ravaged during French     Revolutionary Wars	March 25, 1799
• Mediatised to Baden	1805
Preceded by Succeeded by Duchy of Swabia Grand Duchy of Baden

Aach [aːx] is a small town in the German state of Baden-Württemberg. Being situated close to Lake Constance and the Swiss border, it is mostly known for the Aachtopf — Germany's biggest natural spring in terms of production.

Aach has a city council with twelve seats. The last elections in 2004 brought three seats for the CDU, three seats for the SPD and four seats for independent voters' associations. Aach's mayor is Severin Graf (CDU).

Wikimedia Commons has media related to Aach (Hegau).

• (in German) Aach:History and images Archived 2013-01-06 at Archive.today

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