Jenins has a population (as of ) of . , 10.6% of the population was made up of foreign nationals. , the gender distribution of the population was 49.1% male and 50.9% female. The age distribution, , in Jenins is; 107 children or 14.3% of the population are between 0 and 9 years old. 48 teenagers or 6.4% are 10 to 14, and 35 teenagers or 4.7% are 15 to 19. Of the adult population, 71 people or 9.5% of the population are between 20 and 29 years old. 134 people or 18.0% are 30 to 39, 118 people or 15.8% are 40 to 49, and 91 people or 12.2% are 50 to 59. The senior population distribution is 60 people or 8.0% of the population are between 60 and 69 years old, 51 people or 6.8% are 70 to 79, there are 26 people or 3.5% who are 80 to 89, and there are 5 people or 0.7% who are 90 to 99. In the
2007 federal election the most popular party was the
SVP which received 40.7% of the vote. The next three most popular parties were the
SP (22.5%), the
FDP (20.4%) and the
CVP (13.4%). ==Heritage sites of national significance==