Calfreisen (Romansh: Chiaunreis^ⓘ) is a former municipality in the district of Plessur in the canton of Graubünden in Switzerland. On 1 January 2013 the former municipalities of Calfreisen, Castiel, Langwies, Lüen, Molinis, Peist and St. Peter-Pagig merged into the municipality of Arosa.^[1]

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Calfreisen
Former municipality
Calfreisen, on southern end is Ruine Bernegg and further down in the valley is Castiel church.
Coat of arms
Location of Calfreisen
Calfreisen Show map of Switzerland Calfreisen Show map of Canton of Graubünden
Coordinates: 46°50′N 9°35′E
Country	Switzerland
Canton	Graubünden
District	Plessur
Area
• Total	5.13 km2 (1.98 sq mi)
Elevation	1,249 m (4,098 ft)
Population  (2010)
• Total	54
• Density	11/km2 (27/sq mi)
Time zone	UTC+01:00 (Central European Time)
• Summer (DST)	UTC+02:00 (Central European Summer Time)
Postal code(s)	7027
SFOS number	3922
ISO 3166 code	CH-GR
Surrounded by	Castiel, Maladers, Praden, Says, Trimmis
Website	www.calfreisen.ch SFSO statistics

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Calfreisen is first mentioned in 1156 as Caureisene.^[2]

Before the merger, Calfreisen had a total area of 5.2 km² (2.0 sq mi).^[3] Of this area, 49.5% is used for agricultural purposes, while 30% is forested. Of the rest of the land, 1.7% is settled (buildings or roads) and the remainder (18.8%) is non-productive (rivers, glaciers or mountains).^[3]

The former municipality is located in the Schanfigg sub-district of the Plessur district. It is on the north slope of the Schanfigg mountain.

Calfreisen had a population (as of 2010) of 54.^[3] As of 2008^[update], 20.4% of the population was made up of foreign nationals.^[4] Over the last 10 years the population has grown at a rate of 12.5%.^[3]

As of 2000^[update], the gender distribution of the population was 55.6% male and 44.4% female.^[5] The age distribution, as of 2000^[update], in Calfreisen is; 7 children or 15.6% of the population are between 0 and 9 years old. 4 teenagers or 8.9% are 10 to 14, and 1 teenager is 15 to 19. Of the adult population, 2 people or 4.4% of the population are between 20 and 29 years old. 6 people or 13.3% are 30 to 39, 8 people or 17.8% are 40 to 49, and 6 people or 13.3% are 50 to 59. The senior population distribution is 1 person is between 60 and 69 years old, 3 people or 6.7% are 70 to 79, there are 7 people or 15.6% who are 80 to 89.^[4]

In the 2007 federal election the most popular party was the SVP which received 63.3% of the vote. The next three most popular parties were the SP (28.3%), the CVP (5%) and the FDP (3.3%).^[3]

In Calfreisen about 77.3% of the population (between age 25–64) have completed either non-mandatory upper secondary education or additional higher education (either University or a Fachhochschule).^[3]

Calfreisen has an unemployment rate of 0.4%. As of 2005^[update], there were 6 people employed in the primary economic sector and about 3 businesses involved in this sector. 1 person is employed in the secondary sector and there is 1 business in this sector. 1 person is employed in the tertiary sector, with 1 business in this sector.^[3]

The historical population is given in the following table:^[2]

Most of the population (as of 2000^[update]) speaks German (93.3%), with the rest speaking Romansh ( 6.7%).^[3]

The historical language use is given in the following table: