Switzerland, and 1,028 or 21.4% were born outside of Switzerland. , children and teenagers (0–19 years old) make up 22.1% of the population, while adults (20–64 years old) make up 56.7% and seniors (over 64 years old) make up 21.2%. , there were 1,842 people who were single and never married in the municipality. There were 2,242 married individuals, 447 widows or widowers and 276 individuals who are divorced. , there were 916 households that consist of only one person and 86 households with five or more people. , a total of 2,190 apartments (78.9% of the total) were permanently occupied, while 362 apartments (13.0%) were seasonally occupied and 223 apartments (8.0%) were empty. , the construction rate of new housing units was 1.3 new units per 1000 residents. The vacancy rate for the municipality, , was 4.5%. The historical population is given in the following chart: Heritage sites of national significance The Collégiale and the Longines Watch factory are listed as Swiss heritage site of national significance. The entire urban village of Saint-Imier is part of the Inventory of Swiss Heritage Sites. Politics In the 2011 federal election the most popular party was the Social Democratic Party (SP) which received 26.4% of the vote. The next two most popular parties were the Swiss People's Party (SVP) (25.4%), and the FDP.The Liberals (18.2%) . In the federal election, a total of 929 votes were cast, and the voter turnout was 31.6%. Economy Saint-Imier is the hometown of the Longines watchmaking company. The Breitling watchmaking company was founded in Saint-Imier, but moved to Grenchen, Canton of Solothurn. , Saint-Imier had an unemployment rate of 3.59%. , there were a total of 2,483 people employed in the municipality. Of these, there were 61 people employed in the primary economic sector and about 23 businesses involved in this sector. 1,102 people were employed in the secondary sector and there were 57 businesses in this sector. 1,320 people were employed in the tertiary sector, with 164 businesses in this sector. There were 183 residents of the municipality who were employed in some capacity, of which females made up 59.0% of the workforce. there were a total of 2,069 full-time equivalent jobs. The number of jobs in the primary sector was 46, of which 42 were in agriculture and 4 were in forestry or lumber production. The number of jobs in the secondary sector was