Sagogn has an area,, of. Of this area, 23.2% is used for agricultural purposes, while 59.7% is forested. Of the rest of the land, 4.7% is settled and the remainder is non-productive. Before 2017, the municipality was located in the Ilanz sub-district of the Surselva district, after 2017 it was part of the Surselva Region. It is on the northern slope above the Vorderrhein on the bank of the Gruob. It consists of the village sections of Innerdorf and Ausserdorf. Until 1943 Sagogn was known by its German name as Sagens.
Demographics
Sagogn has a population of. , 6.6% of the population was made up of foreign nationals. Over the last 10 years the population has decreased at a rate of -5.4%. Most of the population speaks Romansh, with German being second most common and Dutch being third. The official language is the Sursilvan dialect of Romansh. , the gender distribution of the population was 55.0% male and 45.0% female. The age distribution,, in Sagogn is; 60 children or 10.1% of the population are between 0 and 9 years old and 93 teenagers or 15.6% are between 10 and 19. Of the adult population, 63 people or 10.6% of the population are between 20 and 29 years old. 92 people or 15.4% are between 30 and 39, 95 people or 15.9% are between 40 and 49, and 79 people or 13.2% are between 50 and 59. The senior population distribution is 60 people or 10.1% of the population are between 60 and 69 years old, 26 people or 4.4% are between 70 and 79, there are 23 people or 3.9% who are between 80 and 89 there are 6 people or 1.0% who are between 90 and 99. In the 2007 federal election the most popular party was the SVP which received 32.6% of the vote. The next three most popular parties were the CVP, the SP and the FDP. In Sagogn about 74.9% of the population have completed either non-mandatory upper secondary education or additional higher education. Sagogn has an unemployment rate of 0.98%. , there were 13 people employed in the primary economic sector and about 5 businesses involved in this sector. 22 people are employed in the secondary sector and there are 8 businesses in this sector. 33 people are employed in the tertiary sector, with 11 businesses in this sector. The historical population is given in the following table:
year
population
1803
399
1850
535
1900
405
1950
492
1970
383
1990
611
2000
597
Heritage sites of national significance
The Church of S. Maria, and the prehistoric settlement, medieval castle and church at Schiedberg Castle/Bregl da Haida are listed as Swiss heritage sites of national significance. The Church of S. Maria was built in 1634, while the church tower is from an earlier structure and was built in 1449. The church has a three-bay nave with a rectangular choir and transept and two side chapels. The ceiling and wall murals were painted in 1639 by Giov. Batt. Macholino. The high and side altars date from about the same time. The castle site at Scheidberg has been occupied since the prehistoric era. The castle served to protect the Lukmanier Passtrade route. The church at nearby Bregl da Haida was built in the 5th Century and replaced with a Carolingianchurch in the 7th Century. The church had a single nave and a horseshoe shaped apse. It was mentioned in the Testament of Bischof Tello in 765 as the Columbans church. This church may have been a private chapel for the raetian Viktoriden family, who lived in a nearby manor house.
