households in the municipality, and an average of 2.6 persons per household. There were 98 households that consist of only one person and 40 households with five or more people. Out of a total of 307 households that answered this question, 31.9% were households made up of just one person and there were 3 adults who lived with their parents. Of the rest of the households, there are 63 married couples without children, 120 married couples with children. There were 10 single parents with a child or children. There were 5 households that were made up of unrelated people and 8 households that were made up of some sort of institution or another collective housing. there were 171 single family homes (or 67.3% of the total) out of a total of 254 inhabited buildings. There were 62 multi-family buildings (24.4%), along with 11 multi-purpose buildings that were mostly used for housing (4.3%) and 10 other use buildings (commercial or industrial) that also had some housing (3.9%). , a total of 279 apartments (74.4% of the total) were permanently occupied, while 75 apartments (20.0%) were seasonally occupied and 21 apartments (5.6%) were empty. , the construction rate of new housing units was 2.4 new units per 1000 residents. The vacancy rate for the municipality, , was 0.75%. Sights The entire small city of Sembrancher is designated as part of the Inventory of Swiss Heritage Sites. Politics In the 2007 federal election the most popular party was the CVP which received 47.64% of the vote. The next three most popular parties were the FDP (21.05%), the SVP (17.15%) and the SP (9.05%). In the federal election, a total of 390 votes were cast, and the voter turnout was 62.7%. In the 2009 Conseil d'État/Staatsrat election a total of 390 votes were cast, of which 14 or about 3.6% were invalid. The voter participation was 64.8%, which is much more than the cantonal average of 54.67%. In the 2007 Swiss Council of States election a total of 382 votes were cast, of which 29 or about 7.6% were invalid. The voter participation was 63.3%, which is similar to the cantonal average of 59.88%. Economy Its spring water has a high fluorine content and is sold as 'Sembrancher'. , Sembrancher had an unemployment rate of 5.3%. , there were 36 people employed in the primary economic sector and about 18 businesses involved in this