Küttigen is a municipality in the district of Aarau of the canton of Aargau in Switzerland.

Of the rest of the land, 13% is settled (buildings or roads) and the remainder (0.6%) is non-productive (rivers or lakes).

[4] The municipality is located in the Aarau district between the Aare river and the Jura Mountains.

Most of the population (as of 2000[update]) speaks German (89.4%), with Italian being second most common (2.5%) and Albanian being third ( 2.1%).

[4] The age distribution, as of 2008[update], in Küttigen is; 532 children or 9.8% of the population are between 0 and 9 years old and 600 teenagers or 11.1% are between 10 and 19.

[10] In the 2007 federal election the most popular party was the SVP which received 30.1% of the vote.

[11] From the 2000 census[update], 1,213 or 24.1% are Roman Catholic, while 2,724 or 54.2% belonged to the Swiss Reformed Church.