Hinterrhein is first mentioned in 1219 as de Reno.
Geography
Hinterrhein has an area,, of. Of this area, 22.7% is used for agricultural purposes, while 7.6% is forested. Of the rest of the land, 1.2% is settled and the remainder is non-productive. Before 2017, the municipality was located in the Rheinwald sub-district, of the Hinterrhine district, after 2017 it was part of the Viamala Region. It is a haufendorf located on the northern portal of the San Bernardino tunnel.
Demographics
Hinterrhein has a population of., 6.4% of the population was made up of foreign nationals. Over the last 10 years the population has stayed stable. , the gender distribution of the population was 57.7% male and 42.3% female. The age distribution,, in Hinterrhein is; 9 people or 8.6% of the population are between 0 and 9 years old. 2 people or 1.9% are 10 to 14, and 6 people or 5.7% are 15 to 19. Of the adult population, 14 people or 13.3% of the population are between 20 and 29 years old. 19 people or 18.1% are 30 to 39, 19 people or 18.1% are 40 to 49, and 11 people or 10.5% are 50 to 59. The senior population distribution is 14 people or 13.3% of the population are between 60 and 69 years old, 9 people or 8.6% are 70 to 79, there are 2 people or 1.9% who are 80 to 89. In the 2007 federal election the most popular party was the SVP which received 76.6% of the vote. The next three most popular parties were the FDP, the SPS and the CVP. In Hinterrhein about 44.8% of the population have completed either non-mandatory upper secondary education or additional higher education. Hinterrhein has an unemployment rate of 0.36%., there were 28 people employed in the primary economic sector and about 12 businesses involved in this sector. 2 people are employed in the secondary sector and there is 1 business in this sector. 11 people are employed in the tertiary sector, with 4 businesses in this sector. The historical population is given in the following table:
year
population
1781
171
1850
163
1900
147
1950
94
1960
86
1970
77
1980
75
1990
68
2000
105
Languages
Most of the population speaks German, with Italian being second most common and Portuguese being third.
Between 1961 and 1990 Hinterrhein had an average of 121.4 days of rain per year and on average received of precipitation. The wettest month was May during which time Hinterrhein received an average of of precipitation. During this month there was precipitation for an average of 14.2 days. The driest month of the year was February with an average of of precipitation over 14.2 days.
