Derendingen is a municipality in the district of Wasseramt in the canton of Solothurn in Switzerland.

Originally an agricultural community, it became a centre of textiles industry in the 1860s.

Derendingen has an area, as of 2009[update], of 5.62 square kilometers (2.17 sq mi).

Of the rest of the land, 1.83 km2 (0.71 sq mi) or 32.6% is settled (buildings or roads), 0.08 km2 (20 acres) or 1.4% is either rivers or lakes.

while parks, green belts and sports fields made up 2.1%.

[3] The municipality is located in the Wasseramt district, on the lower reaches of the Emme river.

[4] The blazon of the municipal coat of arms is Argent three bends Gules and overall a Fish naiant Azure.

[8] Most of the population (as of 2000[update]) speaks German (4,942 or 85.1%), with Italian being second most common (346 or 6.0%) and Albanian being third (134 or 2.3%).

[9] As of 2008[update], the gender distribution of the population was 49.6% male and 50.4% female.

[7] The age distribution, as of 2000[update], in Derendingen is; 485 children or 8.3% of the population are between 0 and 6 years old and 957 teenagers or 16.5% are between 7 and 19.

[8] The historical population is given in the following chart:[13][14] In the 2007 federal election the most popular party was the SP which received 25.34% of the vote.

In the federal election, a total of 1,686 votes were cast, and the voter turnout was 46.2%.

[8] There were 3,101 residents of the municipality who were employed in some capacity, of which females made up 44.5% of the workforce.

In the tertiary sector; 208 or 27.1% were in wholesale or retail sales or the repair of motor vehicles, 128 or 16.7% were in the movement and storage of goods, 51 or 6.6% were in a hotel or restaurant, 15 or 2.0% were in the information industry, 26 or 3.4% were the insurance or financial industry, 43 or 5.6% were technical professionals or scientists, 79 or 10.3% were in education and 141 or 18.4% were in health care.

[8] From the 2000 census[update], 1,955 or 33.6% were Roman Catholic, while 2,041 or 35.1% belonged to the Swiss Reformed Church.

The education system in the Canton of Solothurn allows young children to attend two years of non-obligatory Kindergarten.

All the lower secondary students from Derendingen attend their school in a neighboring municipality.