Grolley (; ) is a municipality in the district of Sarine in the canton of Fribourg in Switzerland. History Grolley is first mentioned around 1137-38 as de Groslerio. Geography Grolley has an area, , of . Of this area, or 64.8% is used for agricultural purposes, while or 18.4% is forested. Of the rest of the land, or 16.5% is settled (buildings or roads). Of the built up area, industrial buildings made up 3.0% of the total area while housing and buildings made up 8.2% and transportation infrastructure made up 3.6%. Power and water infrastructure as well as other special developed areas made up 1.1% of the area Out of the forested land, 17.2% of the total land area is heavily forested and 1.1% is covered with orchards or small clusters of trees. Of the agricultural land, 41.4% is used for growing crops and 23.0% is pastures. The municipality is located in the Sarine district, on the Fribourg-Payerne road. Since 2000 consists of the villages of Grolley and Corsalettes. On 1 January 2000 the former municipality of Corsalettes merged into the municipality of Grolley. Coat of arms The blazon of the municipal coat of arms is Argent chief Or a Bendlet of the first on a Bend Sable fimbriated Gules frette with a Bendlet sinister Vert on a Bend Sinister of the second fimbriated of the last. The new coat of arms was adopted after the 2000 merger of Corsaletters into Grolley. Demographics Grolley has a population () of . , 10.8% of the population are resident foreign nationals. Over the last 10 years (2000–2010) the population has changed at a rate of 9.5%. Migration accounted for 14.2%, while births and deaths accounted for 4.9%. Most of the population () speaks French (1,326 or 90.0%) as their first language, German is the second most common (91 or 6.2%) and Italian is the third (17 or 1.2%). , the population was 50.7% male and 49.3% female. The population was made up of 730 Swiss men (44.5% of the population) and 101 (6.2%) non-Swiss men. There were 724 Swiss women (44.1%) and 85 (5.2%) non-Swiss women. Of the population in the municipality, 437 or about 29.7% were born in Grolley and lived there in 2000. There were 645 or 43.8% who were born in the same canton, while 222 or 15.1% were born somewhere else in Switzerland, and 159 or 10.8% were