Felsberg (Romansh: Favugn) is a municipality in the Imboden Region in the Swiss canton of Graubünden.

Of the rest of the land, 4.3% is settled (buildings or roads) and the remainder (31.9%) is non-productive (rivers, glaciers or mountains).

[4] Before 2017, the municipality was located in the Trin sub-district of the Imboden district, it is in a small valley north of the Rhine and between Chur and Domat/Ems.

[6] The age distribution, as of 2000[update], in Felsberg is; 256 people or 12.6% of the population are between 0 and 9 years old.

[7] In the 2007 federal election the most popular party was the SVP which received 42.9% of the vote.

[4] From the 2000 census[update], 535 or 26.4% are Roman Catholic, while 1,304 or 64.3% belonged to the Swiss Reformed Church.