Buchs (German pronunciation: [bʊks] ⓘ) is a municipality in the district of Aarau of the canton of Aargau in Switzerland.

[3] The blazon of the municipal coat of arms is Argent a Box-tree Vert eradicated issuant from Coupeaux of the same.

The coat of arms contains an example of canting, the tree is a box-tree (German: Buchsbaum) which refers to the municipal name.

The area of Buchs lies in the plains of the Suhre, the eastern part is covered by the "Suretwald" forest.

Of the rest of the land, 40.2% is settled (buildings or roads) and the remainder (0.2%) is non-productive (rivers or lakes).

[10] The historical population is given in the following table:[3] In the 2007 federal election the most popular party was the SVP which received 35.9% of the vote.

It is responsible for approving tax levels, preparing the annual account, and the business report.

In the last two elections the parties had the following representation: At the district level, some elements of the government remain a direct democracy.

The five members (and their party) for the period 2006-2009 are: Buchs offers approximately 4100 jobs, whereof 1% in agriculture, 48% industry and 51% services.

[14] The industrial areas are mainly located near the railway line in the north, and in the "Wynenfeld" in the south-eastern part.

Express and mail delivery company TNT has its Swiss head office and hub in Buchs.

[16] In 1877 the railway company Schweizerische Nationalbahn opened a standard gauge branch line from Aarau via Buchs to Suhr, connecting it with their main line Singen – Winterthur – Wettingen – Lenzburg – Zofingen.