Unterramsern is a municipality in the district of Bucheggberg, in the canton of Solothurn, Switzerland.

Unterramsern has an area, as of 2009[update], of 1.56 square kilometers (0.60 sq mi).

[3] The blazon of the municipal coat of arms is Per fess Gules and Argent a Bear's Garlic flower between six roundels counterchanged.

[7] Most of the population (as of 2000[update]) speaks German (173 or 98.9%) with the rest speaking French[8] As of 2008[update], the gender distribution of the population was 50.7% male and 49.3% female.

[6] The age distribution, as of 2000[update], in Unterramsern is; 16 children or 9.1% of the population are between 0 and 6 years old and 40 teenagers or 22.9% are between 7 and 19.

[7] The historical population is given in the following chart:[12] In the 2007 federal election the most popular party was the FDP which received 42.91% of the vote.

In the federal election, a total of 77 votes were cast, and the voter turnout was 52.0%.

[7] There were 103 residents of the municipality who were employed in some capacity, of which females made up 40.8% of the workforce.

In 2008[update] the total number of full-time equivalent jobs was 47.

The number of jobs in the secondary sector was 18 of which 2 or (11.1%) were in manufacturing and 17 (94.4%) were in construction.

In the tertiary sector; 1 was in the sale or repair of motor vehicles, 10 or 66.7% were in the movement and storage of goods, 2 or 13.3% were in a hotel or restaurant, .

[7] From the 2000 census[update], 24 or 13.7% were Roman Catholic, while 133 or 76.0% belonged to the Swiss Reformed Church.

[8] As of 2000[update], there were 38 students from Unterramsern who attended schools outside the municipality.