Lü had an area,, of. Of this area, 45.5% is used for agricultural purposes, while 34.5% is forested. Of the rest of the land, 1.5% is settled and the remainder is non-productive. The municipality is located in the Val Müstair sub-district of the Inn district. It is one of the highest villages in Europe, at an elevation of on a terrace above the left bank of the Rombach. It consists of the village of Lü and the hamlet of Lüsai.
Demographics
Lü has a population of 63, of which 4.8% are foreign nationals. Over the last 10 years the population has decreased at a rate of -19.8%. , the gender distribution of the population was 47.7% male and 52.3% female. The age distribution,, in Lü is; 9 children or 14.5% of the population are between 0 and 9 years old. 6 teenagers or 9.7% are 10 to 14, and 1 teenager is 15 to 19. Of the adult population, no one is between 20 and 29 years old. 12 people or 19.4% are 30 to 39, 13 people or 21.0% are 40 to 49, and 5 people or 8.1% are 50 to 59. The senior population distribution is 10 people or 16.1% of the population are between 60 and 69 years old, 2 people or 3.2% are 70 to 79, there are 4 people or 6.5% who are 80 to 89. In the 2007 federal election the most popular party was the SVP which received 98% of the vote. The rest of the votes went to the FDP and the SPS. The entire Swiss population is generally well educated. In Lü about 71.9% of the population have completed either non-mandatory upper secondary education or additional higher education. Lü has an unemployment rate of 0%. , there were 16 people employed in the primary economic sector and about 8 businesses involved in this sector. 3 people are employed in the secondary sector and there are 2 businesses in this sector. 12 people are employed in the tertiary sector, with 2 businesses in this sector. The historical population is given in the following table:
year
population
1835
74
1850
95
1900
59
1950
56
1980
56
2000
62
Languages
Most of the population speaks Rhaeto-Romance, with the rest speaking German In the valley, the Romansh speaking population speaks the Jauer dialect. In 1910 about 90% of the population spoke Romansh, in 1941 it was 96% and in 1970 it was 94%. In 1990 98% understood Romansh even if wasn't their first language and in 2000 it was 87%.