Over the last four years (2010-2014) the population has changed at a rate of -0.27%. The birth rate in the municipality, in 2014, was 9.1, while the death rate was 8.2 per thousand residents. Most of the population () speaks German (86.3%), with Serbo-Croatian being second most common (2.8%) and Italian being third (2.7%).  , children and teenagers (0–19 years old) make up 17.3% of the population, while adults (20–64 years old) are 64.5% and seniors (over 64 years old) make up 18.2%. In 2015 there were 5,099 single residents, 4,666 people who were married or in a civil partnership, 550 widows or widowers and 794 divorced residents. In 2014 there were 5,441 private households in Davos with an average household size of 2.03 persons. Of the 2,133 inhabited buildings in the municipality, in 2000, about 30.7% were single family homes and 39.1% were multiple family buildings. Additionally, about 25.9% of the buildings were built before 1919, while 8.3% were built between 1991 and 2000. In 2013 the rate of construction of new housing units per 1000 residents was 23.46. The vacancy rate for the municipality, , was 0.71%. The historic population is given in the following chart: In Davos about 74% of the population (ages 25–64) have completed either nonmandatory upper secondary education or additional higher education (either a university or a "Fachhochschule"). Davos is a tourist community and a regional center.  , there were a total of 8,853 people employed in the municipality. Of these, a total of 203 people worked in 80 businesses in the primary economic sector. The secondary sector employed 996 workers in 145 separate businesses. Finally, the tertiary sector provided 7,654 jobs in 926 businesses. In 2014 a total of 5,211 employees worked in 908 small companies (less than 50 employees). There were 17 mid sized businesses with 2,074 employees and 1 large business which employed 369 people. In 2014 a total of 23.5% of the population received social assistance. In 2015 local hotels had a total of 797,348 overnight stays, of which 46.9% were international visitors. From the , 5,321 residents (46.6% of the population) belonged to the Swiss Reformed Church while 3,950 residents (34.6%) are Roman Catholic.