Bellach is a municipality in the district of Lebern in the canton of Solothurn in Switzerland.

[3] Bellach has an area, as of 2009[update], of 5.27 square kilometers (2.03 sq mi).

Of the rest of the land, 1.76 km2 (0.68 sq mi) or 33.4% is settled (buildings or roads), 0.22 km2 (0.085 sq mi) or 4.2% is either rivers or lakes and 0.01 km2 (2.5 acres) or 0.2% is unproductive land.

[4] The municipality is located in the Lebern district, in the southern foothills of the Jura Mountains, west of Solothurn.

It consists of the former villages of Ober-Bellach, Nieder-Bellach and Gärisch, which have all grown together.

[5] Bellacher Weiher is a pond and nature preserve in the municipality.

The blazon of the municipal coat of arms is Azure a Horse Argent rampant and harnessed.

[9] Most of the population (as of 2000[update]) speaks German (4,191 or 83.4%), with Italian being second most common (210 or 4.2%) and Turkish being third (185 or 3.7%).

[8] The age distribution, as of 2000[update], in Bellach is; 370 children or 7.4% of the population are between 0 and 6 years old and 842 teenagers or 16.7% are between 7 and 19.

The greatest number of single family homes (146) were built between 1971 and 1980.

[9] The historical population is given in the following chart:[3][14] In the 2007 federal election the most popular party was the SVP which received 31.21% of the vote.

In the federal election, a total of 1,625 votes were cast, and the voter turnout was 50.8%.

[9] There were 2,629 residents of the municipality who were employed in some capacity, of which females made up 42.1% of the workforce.

In the tertiary sector; 328 or 46.7% were in wholesale or retail sales or the repair of motor vehicles, 24 or 3.4% were in the movement and storage of goods, 34 or 4.8% were in a hotel or restaurant, 9 or 1.3% were in the information industry, 10 or 1.4% were the insurance or financial industry, 100 or 14.2% were technical professionals or scientists, 43 or 6.1% were in education and 60 or 8.5% were in health care.

[9] From the 2000 census[update], 1,926 or 38.3% were Roman Catholic, while 1,559 or 31.0% belonged to the Swiss Reformed Church.