Gäu District

Of the rest of the land, 10.41 km2 (4.02 sq mi) or 16.8% is settled (buildings or roads), 0.44 km2 (0.17 sq mi) or 0.7% is either rivers or lakes and 0.06 km2 (15 acres) or 0.1% is unproductive land.

[2] The blazon of the municipal coat of arms is Tierced per fess Gules Argent and Sable.

[1] Most of the population (as of 2000[update]) speaks German (15,113 or 90.3%), with Albanian being second most common (353 or 2.1%) and Serbo-Croatian being third (309 or 1.8%).

[4] As of 2008[update], the gender distribution of the population was 50.5% male and 49.5% female.

The total Swiss population change in 2008 (from all sources, including moves across municipal borders) was an increase of 129 and the non-Swiss population increased by 134 people.

[4] The historical population is given in the following chart:[7] In the 2007 federal election the most popular party was the SVP which received 29.77% of the vote.

In the federal election, a total of 6,158 votes were cast, and the voter turnout was 52.5%.

[8] From the 2000 census[update], 9,422 or 56.3% were Roman Catholic, while 3,682 or 22.0% belonged to the Swiss Reformed Church.

The education system in the Canton of Solothurn requires students to attend six years of primary school, with some of the children attending smaller, specialized classes.