La Sonnaz () is a municipality in the district of Sarine in the canton of Fribourg in Switzerland. The municipality was created in 2004 through the merger of Cormagens, La Corbaz and Lossy-Formangueires. The municipal administration, the kindergarten and the primary school are in Lossy. Geography La Sonnaz has an area, , of . Of this area, or 66.4% is used for agricultural purposes, while or 22.2% is forested. Of the rest of the land, or 7.4% is settled (buildings or roads), or 4.1% is either rivers or lakes. Of the developed area, housing and buildings made up 4.6% and transportation infrastructure made up 1.9%. Out of the forested land, 20.4% of the total land area is heavily forested and 1.7% is covered with orchards or small clusters of trees. Of the agricultural land, 43.6% is used for growing crops and 22.3% is pastures. All the water in the municipality is in lakes. Demographics La Sonnaz has a population () of . , 8.1% of the population are resident foreign nationals. Over the last 10 years (2000–2010) the population has changed at a rate of 21.4%. Migration accounted for 15.3%, while births and deaths accounted for 9.2%. Most of the population () speaks French (88.6%) as their first language, German is the second most common (9.1%) and Portuguese is the third (0.9%). , the population was 49.7% male and 50.3% female. The population was made up of 448 Swiss men (45.8% of the population) and 39 (4.0%) non-Swiss men. There were 458 Swiss women (46.8%) and 34 (3.5%) non-Swiss women. , children and teenagers (0–19 years old) make up 32.1% of the population, while adults (20–64 years old) make up 59.6% and seniors (over 64 years old) make up 8.3%. , the construction rate of new housing units was 2 new units per 1000 residents. Politics In the 2011 federal election the most popular party was the SPS which received 32.1% of the vote. The next three most popular parties were the CVP (23.0%), the SVP (15.0%) and the FDP (9.8%). The SPS received about the same percentage of the vote as they did in the 2007 Federal election (31.9% in 2007 vs 32.1% in 2011). The CVP retained about the same popularity (26.0% in 2007), the SVP retained about the same popularity (15.9% in 2007) and the FDP retained about the same popularity (9.9% in 2007). A total of