Rietheim is a village and former municipality in the district of Zurzach in the canton of Aargau in Switzerland.

The low court right lay with the Bishop of Constance and was exercised by Zurzach Abbey.

[3] In 1915 the Swiss Sodafabrik (renamed Solvay in 1922) was awarded a concession for the exploitation of salt in the Rietheimerfeld.

The village was formerly dominated by agriculture and viticulture, but at the beginning of the 21st century, it became a residential and commuter town.

Many of Rietheim's various community functions (including finance, education, sanitation) are shared with Zurzach.

[3] Rietheim has an area, as of 2009[update], of 3.93 square kilometers (1.52 sq mi).

[4] The village is located in the Zurzach district, on the north-east edge of the Achenberg.

The blazon of the municipal coat of arms is Azure a Ploughshare inverted Argent.

[7] The age distribution, as of 2008[update], in Rietheim is; 90 children or 12.4% of the population are between 0 and 9 years old and 116 teenagers or 15.9% are between 10 and 19.

[8] In the 2007 federal election the most popular party was the SVP which received 42.31% of the vote.

[8] From the 2000 census[update], 253 or 44.8% were Roman Catholic, while 179 or 31.7% belonged to the Swiss Reformed Church.

[10] Rietheim railway station is served by Zurich S-Bahn line S36, which links Bülach and Waldshut, and by alternate trains on Aargau S-Bahn line S27, which link Baden and Bad Zurzach.