Brunnenthal was a municipality in the district of Bucheggberg, in the canton of Solothurn, Switzerland.

[2] Brunnenthal has an area, as of 2009[update], of 0.88 square kilometers (0.34 sq mi).

[3] The village is located in the Bucheggberg district, on the northern edge of the Rapperswil plateau.

It consists of the village of Brunnenthal and the hamlets of Burgsumpf and Burg.

The blazon of the municipal coat of arms is Per fess Gules a Wooden Fountain Or and of the last two Mounts Vert.

[8] The age distribution, as of 2000[update], in Brunnenthal is; 17 children or 9.0% of the population are between 0 and 6 years old and 33 teenagers or 17.5% are between 7 and 19.

[10] About % of the total households were owner occupied, or in other words did not pay rent (though they may have a mortgage or a rent-to-own agreement).

[6] The historical population is given in the following chart:[2][13] In the 2007 federal election the most popular party was the SVP which received 34.72% of the vote.

In the federal election, a total of 88 votes were cast, and the voter turnout was 56.8%.

[6] There were 97 residents of the village who were employed in some capacity, of which females made up 40.2% of the workforce.

In 2008[update] the total number of full-time equivalent jobs was 23.

In the tertiary sector; 2 or 40.0% were in a hotel or restaurant, 3 or 60.0% were technical professionals or scientists, .

[6] From the 2000 census[update], 7 or 3.7% were Roman Catholic, while 160 or 84.7% belonged to the Swiss Reformed Church.

Of the rest of the population, there was 1 individual who belongs to the Christian Catholic Church.