Kienberg is a municipality in the district of Gösgen in the canton of Solothurn in Switzerland.

[3] Kienberg has an area, as of 2009[update], of 8.53 square kilometers (3.29 sq mi).

[4] The municipality is located in the Gösgen district, on the border between the Jura Plateau and the Fricktal.

[8] Most of the population (as of 2000[update]) speaks German (508 or 97.3%), with French being second most common (4 or 0.8%) and Italian being third (2 or 0.4%).

[9] As of 2008[update], the gender distribution of the population was 52.3% male and 47.7% female.

[7] The age distribution, as of 2000[update], in Kienberg is; 62 children or 11.9% of the population are between 0 and 6 years old and 91 teenagers or 17.4% are between 7 and 19.

[8] The historical population is given in the following chart:[3][13] In the 2007 federal election the most popular party was the SVP which received 33.26% of the vote.

In the federal election, a total of 200 votes were cast, and the voter turnout was 51.7%.

[8] There were 260 residents of the municipality who were employed in some capacity, of which females made up 37.7% of the workforce.

In 2008[update] the total number of full-time equivalent jobs was 76.

In the tertiary sector; 6 or 21.4% were in wholesale or retail sales or the repair of motor vehicles, 13 or 46.4% were in a hotel or restaurant, 1 was in the information industry, 2 or 7.1% were technical professionals or scientists, 4 or 14.3% were in education.

[8] From the 2000 census[update], 247 or 47.3% were Roman Catholic, while 167 or 32.0% 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 Kienberg attend their school in a neighboring municipality.

[18] As of 2000[update], there were 42 students from Kienberg who attended schools outside the municipality.