Valchava is a village in the Val Müstair (Müstair valley) of the canton of Graubünden (Grisons), Switzerland. It was an independent municipality in the district of Inn until on 1 January 2009 Valchava merged with Fuldera, Lü, Müstair, Santa Maria Val Müstair and Tschierv to form Val Müstair. History Valchava is first mentioned in 1331 as Valchava. Geography Valchava has an area, , of . Of this area, 46% is used for agricultural purposes, while 33.9% is forested. Of the rest of the land, 1.4% is settled (buildings or roads) and the remainder (18.7%) is non-productive (rivers, glaciers or mountains). The village is located in the Val Müstair sub-district (now Val Müstair municipality) of the Inn district. It consists of the linear village of Valchava above Santa Maria Val Müstair and the alpine settlements of Chaunt and Valpaschun. Until 1943 Valchava was known as Valcava. Demographics Valchava has a population () of 203, of which 3.4% are foreign nationals. Over the last 10 years the population has decreased at a rate of -12%. , the gender distribution of the population was 51.0% male and 49.0% female. The age distribution, , in Valchava is; 19 children or 9.4% of the population are between 0 and 9 years old. 19 teenagers or 9.4% are 10 to 14, and 12 teenagers or 5.9% are 15 to 19. Of the adult population, 20 people or 9.9% of the population are between 20 and 29 years old. 31 people or 15.3% are 30 to 39, 30 people or 14.9% are 40 to 49, and 25 people or 12.4% are 50 to 59. The senior population distribution is 24 people or 11.9% of the population are between 60 and 69 years old, 16 people or 7.9% are 70 to 79, there are 5 people or 2.5% who are 80 to 89, and there is 1 person who is 90 to 99. In the 2007 federal election the most popular party was the SVP which received 50.4% of the vote. The next three most popular parties were the SPS (37.4%), the CVP (8.9%) and the FDP (3%). In Valchava about 45.6% of the population (between age 25-64) have completed either non-mandatory upper secondary education or additional higher education (either University or a Fachhochschule). Valchava has an unemployment rate of 0.33%. , there were 15 people employed in the primary economic sector and about 8 businesses involved in