41.1% who were born in the same canton, while 327 or 14.8% were born somewhere else in Switzerland, and 332 or 15.0% were born outside of Switzerland. , children and teenagers (0–19 years old) make up 27.3% of the population, while adults (20–64 years old) make up 61.8% and seniors (over 64 years old) make up 10.9%. , there were 972 people who were single and never married in the municipality. There were 1,075 married individuals, 84 widows or widowers and 83 individuals who are divorced. , there were 836 private households in the municipality, and an average of 2.6 persons per household. There were 212 households that consist of only one person and 85 households with five or more people. , a total of 793 apartments (91.3% of the total) were permanently occupied, while 51 apartments (5.9%) were seasonally occupied and 25 apartments (2.9%) were empty. , the construction rate of new housing units was 35.2 new units per 1000 residents. The vacancy rate for the municipality, , was 1.15%. The historical population is given in the following chart: Heritage sites of national significance The Saint-Etienne Church and the mansion de Lanthen-Heid are listed as Swiss heritage site of national significance. Politics In the 2011 federal election the most popular party was the SPS which received 37.9% of the vote. The next three most popular parties were the CVP (26.1%), the SVP (12.2%) and the FDP (6.3%). The SPS received about the same percentage of the vote as they did in the 2007 Federal election (37.1% in 2007 vs 37.9% in 2011). The CVP retained about the same popularity (26.9% in 2007), the SVP retained about the same popularity (13.9% in 2007) and the FDP retained about the same popularity (7.0% in 2007). A total of 877 votes were cast in this election, of which 15 or 1.7% were invalid. Economy , Belfaux had an unemployment rate of 3.5%. , there were 47 people employed in the primary economic sector and about 16 businesses involved in this sector. 170 people were employed in the secondary sector and there were 17 businesses in this sector. 281 people were employed in the tertiary sector, with 52 businesses in this sector. There were 1,132 residents of the municipality who were employed in some capacity, of which females made up 43.0% of the workforce. the total number of full-time equivalent jobs was 396.