History
Gampern is first mentioned around the year 800 under the name Campara in the Mondsee Book of Traditions. From 1143, it was incorporated into the Mattsee Collegiate Chapter as a branch of Vöcklamarkt, until it became an independent parish in 1900. The Mattsee Chapter retained the right of patronage.
Originally situated in the eastern part of the Duchy of Bavaria, the village belonged to the Duchy of Austria from the 12th century onwards. Since 1490, it has been part of the Principality of Austria above the Enns.
At the start of the Thirty Years' War, in 1620, the Habsburgs pledged Upper Austria to the Bavarian Duke Maximilian I. due to a lack of funds for the war chest. In the period that followed, Maximilian sent not only numerous tax officials but also Catholic clergy to Upper Austria, who were to enforce the Counter-Reformation there in accordance with the legal principle of Cuius regio, eius religio. The area around Gampern was one of those regions in Upper Austria where Protestants put up particularly fierce resistance to the Counter-Reformation. Following the Frankenburg Dice Game, in which the Bavarian governor Adam Count von Herberstorff had 36 men gamble for their lives in pairs on 15 May 1625, three citizens from Gampern were executed by hanging at the lime tree on the Haushamerfeld.
During the Napoleonic Wars, the town was occupied on several occasions.
The town has been part of the federal state of Upper Austria since 1918. Following Austria's annexation by the Nazi Germany on 13 March 1938, the town became part of the Oberdonau Gau. Upper Austria was re-established after 1945.
In 2019, the municipality was awarded the IMPULS Award in the digitalisation category.
At the end of April 2023, RAG Austria AG commissioned Underground Sun Storage. Summer electricity surpluses from solar installations are converted into hydrogen gas and injected into a former porous rock natural gas storage facility. In winter, the gas is to be extracted and utilised via an 8 km pipeline at a combined heat and power plant in the municipality. Co-financed by the Climate Fund.
