Moesa District

Moesa District, often referred to as Moesano, is a former administrative district in the canton of Graubünden, Switzerland. It had an area of 473.74 km2 (182.91 sq mi) corresponding to the Val Mesolcina, the valley of the eponymous Moesa River. It was replaced with the Moesa Region on 1 January 2017 as part of a reorganization of the Canton.[1]


Distretto di Moesa
Country  Switzerland
Canton Graubünden
  Total473.74 km2 (182.91 sq mi)
 (December 2015)
  Density17/km2 (44/sq mi)
Time zoneUTC+1 (CET)
  Summer (DST)UTC+2 (CEST)

It had a population of 8,125 in 2015. The official language is Italian.

It consisted of three Kreise (circles) and fourteen municipalities:

Calanca circle
Municipality Population
(31 December 2018)[2]

Area (km²)
Buseno87 11.26
Calanca199 37.72
Castaneda275 3.94
Rossa148 58.93
Santa Maria in Calanca109 9.32
Mesocco circle
Municipality Population
(31 December 2018)[2]
Area (km²)
Lostallo792 50.91
Mesocco1,347 164.76
Soazza319 46.37
Roveredo circle
Municipality Population
(31 December 2018)[2]
Area (km²)
Cama560 15.06
Grono1,378 14.83
Leggia138 9.15
Roveredo2,520 38.78
San Vittore832 22.03
Verdabbio163 13.11


The official language of Moesa is Italian, traditionally the Western Lombard dialect spoken by the native population.

Languages of Moesa District, GR
LanguagesCensus 2000

Mergers and name changes

On 1 January 2015 the former municipalities of Arvigo, Braggio, Selma and Cauco merged to form the new municipality of Calanca.[3]


  1. Swiss Federal Statistical Office - Amtliches Gemeindeverzeichnis der Schweiz - Mutationsmeldungen 2016 accessed 16 February 2017
  2. Swiss Federal Statistical Office - STAT-TAB, online database – Ständige und nichtständige Wohnbevölkerung nach institutionellen Gliederungen, Geburtsort und Staatsangehörigkeit (in German) accessed 23 September 2019
  3. Amtliches Gemeindeverzeichnis der Schweiz published by the Swiss Federal Statistical Office (in German) accessed 2 January 2013

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