Kaisten is a municipality in the district of Laufenburg in the canton of Aargau in Switzerland.

[3] Archeological finds in Kaisten include a Bronze Age burial mound of the Hallstatt period, and a Roman watchtower and brick kiln.

[5] Kaisten castle was built in the 12th and 13th centuries and was part of the territory of Säckingen.

After the annexation of the Fricktal by the Canton of Aargau in the 1803 Act of Mediation it became a municipality.

[6] The municipality is located in the Laufenburg district in the upper Fricktal (Frick river valley).

The blazon of the municipal coat of arms is Or a Vine Leaf Gules slipped.

[10] The age distribution, as of 2008[update], in Kaisten is; 248 children or 10.8% of the population are between 0 and 9 years old and 322 teenagers or 14.0% are between 10 and 19.

[12] About 62% of the total households were owner occupied, or in other words did not pay rent (though they may have a mortgage or a rent-to-own agreement).

[10] In the 2007 federal election the most popular party was the SVP which received 27.7% of the vote.

[14] The historical population is given in the following table:[4][5] The village of Ittenthal is designated as part of the Inventory of Swiss Heritage Sites.

[10] From the 2000 census[update], 1,298 or 63.2% were Roman Catholic, while 395 or 19.2% belonged to the Swiss Reformed Church.