born outside of Switzerland. , children and teenagers (0–19 years old) make up 29.1% of the population, while adults (20–64 years old) make up 62.3% and seniors (over 64 years old) make up 8.6%. , there were 681 people who were single and never married in the municipality. There were 686 married individuals, 56 widows or widowers and 50 individuals who are divorced. , there were 535 private households in the municipality, and an average of 2.7 persons per household. There were 118 households that consist of only one person and 64 households with five or more people. , a total of 526 apartments (93.6% of the total) were permanently occupied, while 28 apartments (5.0%) were seasonally occupied and 8 apartments (1.4%) were empty. , the construction rate of new housing units was 14.6 new units per 1000 residents. The vacancy rate for the municipality, , was 2.25%. The historical population is given in the following chart: Politics In the 2011 federal election the most popular party was the SPS which received 31.2% of the vote. The next three most popular parties were the CVP (23.8%), the SVP (19.4%) and the FDP (10.2%). The SPS received about the same percentage of the vote as they did in the 2007 Federal election (33.1% in 2007 vs 31.2% in 2011). The CVP lost popularity (29.3% in 2007), the SVP retained about the same popularity (16.4% in 2007) and the FDP retained about the same popularity (9.8% in 2007). A total of 530 votes were cast in this election, of which 9 or 1.7% were invalid. Economy , Grolley had an unemployment rate of 2.5%. , there were 39 people employed in the primary economic sector and about 13 businesses involved in this sector. 84 people were employed in the secondary sector and there were 16 businesses in this sector. 488 people were employed in the tertiary sector, with 38 businesses in this sector. There were 761 residents of the municipality who were employed in some capacity, of which females made up 40.3% of the workforce. the total number of full-time equivalent jobs was 549. The number of jobs in the primary sector was 25, all of which were in agriculture. The number of jobs in the secondary sector was 79 of which 33 or (41.8%) were in manufacturing and 46 (58.2%) were in construction. The number of jobs in the tertiary sector