Grono is a municipality in the Moesa Region in the Italian speaking part of the Swiss canton of Grisons. On 1 January 2017 the former municipalities of Leggia and Verdabbio merged into the municipality of Grono.Amtliches Gemeindeverzeichnis der Schweiz published by the Swiss Federal Statistical Office accessed 27 April 2016

History Grono Grono is first mentioned in 1219 as de Grono. In 1395 it was mentioned as de Agrono.

Leggia Leggia is first mentioned in 1295 as de Legia.

Verdabbio Verdabbio is first mentioned in 1203 as Vertabio.

Geography After the 2017 merger Grono had an area of . Before the merger Grono had an area, (as of the 2004/09 survey) of . Of this area, about 8.6% is used for agricultural purposes, while 58.4% is forested. Of the rest of the land, 4.5% is settled (buildings or roads) and 28.5% is unproductive land. In the 2004/09 survey a total of or about 3.0% of the total area was covered with buildings, an increase of over the 1983 amount.

Of the agricultural land, is used for orchards and vineyards, is fields and grasslands and consists of alpine grazing areas. Since 1983 the amount of agricultural land has decreased by . Over the same time period the amount of forested land has increased by . Rivers and lakes cover in the municipality.Swiss Federal Statistical Office – Regional portraits accessed 27 October 2016

Before 2017, the municipality was located in the Roveredo sub-district of the Moesa district, after 2017 it was part of the Moesa Region.Swiss Federal Statistical Office – Amtliches Gemeindeverzeichnis der Schweiz – Mutationsmeldungen 2016 accessed 16 February 2017 The village is on the right bank of the Moesa river by the mouth of the Calanca.

Demographics After the 2017 merger Grono has a population () of . , 32.3% of the population are resident foreign nationals. In 2015 a small minority (155 or 15.2% of the population) was born in Italy and 89 or 8.7% of the population was born in Portugal.Federal Statistical Office – Ständige und nichtständige Wohnbevölkerung nach institutionellen Gliederungen, Geburtsort und Staatsangehörigkeit (Land) accessed 31 October 2016 Over the last 4 years (2010-2014) the population has changed at a rate of 6.72%. The birth rate in the municipality, in 2014, was 13.9, while the death rate was 7.0 per thousand residents.

, the gender distribution of the population was 51.4% male and 48.6% female.Graubunden in Numbers accessed 21 September 2009 The age distribution, , in Grono is; 93 children or 10.2% of the population were between 0 and 9 years old. 40 teenagers or 4.4% were 10 to 14, and 40 teenagers or 4.4% were 15 to 19. Of the adult population, 107 people or 11.7% of the population were between 20 and 29 years old. 130 people or 14.2% were 30 to 39, 145 people or 15.8% were 40 to 49, and 138 people or 15.1% were 50 to 59. The senior population distribution was 87 people or 9.5% of the population were between 60 and 69 years old, 68 people or 7.4% were 70 to 79, there were 58 people or 6.3% who were 80 to 89, and there were 10 people or 1.1% who were 90 to 99.Graubunden Population Statistics accessed 21 September 2009

In 2015 there were 385 single residents, 507 people who were married or in a civil partnership, 56 widows or widowers and 72 divorced residents.Swiss Federal Statistical Office – Ständige und nichtständige Wohnbevölkerung nach institutionellen Gliederungen, Geschlecht, Zivilstand und Geburtsort accessed 8 September 2016

In 2014 there were 428 private households in Grono with an average household size of 2.32 persons. Of the 273 inhabited buildings in the municipality, in 2000, about 63.7% were single family homes and 15.8% were multiple family buildings. Additionally, about 24.2% of the buildings were built before 1919, while 13.2% were built between 1991 and 2000.Swiss Federal Statistical Office STAT-TAB – Thema 09 – Bau- und Wohnungswesen accessed 5 May 2016 In 2013 the rate of construction of new housing units per 1000 residents was 2.01. The vacancy rate for the municipality, , was 0.76%.

The historical population is given in the following table: year population 1773 296 1850 517 1900 484 1950 528 2000 916

Heritage sites of national significance

The Torre Fiorenzana is listed as a Swiss heritage site of national significance.Swiss inventory of cultural property of national and regional significance 21.11.2008 version, accessed 23-Oct-2009

The Torre Fiorenzana was built about the end of the 12th century for the Sacco family. It is a five-story tower house with a rectangular footprint. In 1406 it was the site of the murder of Alberto de Sacco. In 1977 it was restored and is now owned by the Museo moesano.

Sightseeing Attractions

2007–2011: Schoolhouse by Raphael Zuber

Climate

Grono features an oceanic climate (Köppen: Cfb), closely bordering on a humid continental climate (Köppen: Dfb) with hot, humid summers and cold, somewhat dry but quite snowy winters.

The nationwide record temperature of was registered in Grono during the 2003 European heat wave on 11 August 2003. In comparison, the coldest temperature ever measured in Switzerland was in La Brévine.

Between 1991 and 2020 Grono had an average of 99.7 days of rain per year and on average received of precipitation.

The wettest month was August during which time Grono received an average of of precipitation over 10.6 days.

The driest month of the year was February with an average of of precipitation over 4.6 days., the weather station elevation is 382 meters above sea level.

Economy Grono is an industrial-tertiary municipality, a municipality where agriculture and manufacturing play a minor role in the economy. , there were a total of 825 people employed in the municipality. Of these, a total of 6 people worked in 5 businesses in the primary economic sector. The secondary sector employed 343 workers in 35 separate businesses. A minority (21.3%) of the secondary sector employees worked in very small businesses. There were 7 small businesses with a total of 214 employees and one mid-sized business with a total of 56 employees. Finally, the tertiary sector provided 476 jobs in 131 businesses. There were two mid-sized businesses with a total of 137 employees.Federal Statistical Office -Arbeitsstätten und Beschäftigte nach Gemeinde, Wirtschaftssektor und Grössenklasse accessed 31 October 2016 In 2014 a total of 2.% of the population received social assistance.

Politics In the 2015 federal election the most popular party was the SVP with 41.0% of the vote. The next three most popular parties were the SP (21.5%), the CVP (18.7%) and the FDP (10.3%). In the federal election, a total of 212 votes were cast, and the voter turnout was 35.7%. The 2015 election saw a large change in the voting when compared to 2011. The percentage that the CVP received dropped from 29.2% to 18.7%, while the percentage of the vote received by the SVP increased sharply from 22.2% in 2011 to 41.0%.Swiss Federal Statistical Office – Nationalratswahlen 2015: Stärke der Parteien und Wahlbeteiligung nach Gemeinden accessed 18 July 2016

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 SP (29.1%), the CVP (26.7%) and the FDP (10.9%).Swiss Federal Statistical Office accessed 23 October 2009

Education In Grono about 56.4% of the population (between age 25–64) have completed either non-mandatory upper secondary education or additional higher education (either university or a Fachhochschule).

Crime In 2014 the crime rate, of the over 200 crimes listed in the Swiss Criminal Code (running from murder, robbery and assault to accepting bribes and election fraud), in Grono was 50.2 per thousand residents, slightly lower than the national average (64.6 per thousand). There were no drug crimes nor violations of immigration, visa and work permit laws.Statistical Atlas of Switzerland accessed 5 April 2016

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