Tiefencastel
Tiefencastel is a village and a former municipality in the district of Albula in the canton of Graubünden in Switzerland. On 1 January 2015 the former municipalities of Alvaschein, Mon, Stierva, Tiefencastel, Alvaneu, Brienz/Brinzauls and Surava merged to form the new municipality of Albula/Alvra.
History
Tiefencastel is first mentioned in 831 as in Castello Impitinis. Starting around in the 14th century it was known as Tüffenkasten.Geography
Before the merger, Tiefencastel had a total area of. Of this area, 20.3% is used for agricultural purposes, while 49.6% is forested. Of the rest of the land, 3.1% is settled and the remainder is non-productive.It was the capital of the Albula district. The former municipality is located at the foot of the Albula and Julier passes.
Demographics
Tiefencastel had a population of 254., 15.7% of the population was made up of foreign nationals. Over the last 10 years the population has decreased at a rate of -2.2%. Most of the population speaks German, with Romansh being second most common language and Italian the third., the gender distribution of the population was 49.6% male and 50.4% female. The age distribution,, in Tiefencastel is; 37 people or 16.1% of the population are between 0 and 9 years old. 16 people or 7.0% are 10 to 14, and 8 people or 3.5% are 15 to 19. Of the adult population, 23 people or 10.0% of the population are between 20 and 29 years old. 36 people or 15.7% are 30 to 39, 36 people or 15.7% are 40 to 49, and 27 people or 11.7% are 50 to 59. The senior population distribution is 25 people or 10.9% of the population are between 60 and 69 years old, 15 people or 6.5% are 70 to 79, there are 6 people or 2.6% who are 80 to 89, and there are 1 people or 0.4% who are 90 to 99.
In the 2007 federal election the most popular party was the CVP which received 42.5% of the vote. The next three most popular parties were the SVP, the SPS and the FDP.
In Tiefencastel about 69.6% of the population have completed either non-mandatory upper secondary education or additional higher education.
Tiefencastel has an unemployment rate of 1.93%., there were 7 people employed in the primary economic sector and about 3 businesses involved in this sector. 73 people are employed in the secondary sector and there are 8 businesses in this sector. 133 people are employed in the tertiary sector, with 29 businesses in this sector.
The historical population is given in the following table:
| year | population |
| 1850 | 135 |
| 1880 | 209 |
| 1900 | 257 |
| 1950 | 327 |
| 1960 | 306 |
| 1970 | 310 |
| 1980 | 277 |
| 1990 | 239 |
| 2000 | 241 |
| 2010 | 269 |