the population grew, several factories opened in Orvin. In 1954 the first factory, the Schäublin factory, opened in the municipality. It was followed by a Bulova factory in 1964, the Léchot company in 1961, LNS company in 1973 and Precimed in 1988. By 2005 only 10% of the working population worked in agriculture, while almost two-thirds worked in industry. The resort village of Les Prés-d'Orvin grew rapidly as residents of Biel and Solothurn bought chalets. In 1951 there were 181 houses in Les Prés-d'Orvin, while in 1975 it had increased to 332. Geography Orvin has an area of . Of this area, or 37.6% is used for agricultural purposes, while or 57.2% is forested. Of the rest of the land, or 4.8% is settled (buildings or roads) and or 0.6% is unproductive land. Of the built up area, housing and buildings made up 3.0% and transportation infrastructure made up 1.5%. Out of the forested land, 52.3% of the total land area is heavily forested and 5.0% is covered with orchards or small clusters of trees. Of the agricultural land, 7.3% is used for growing crops and 11.5% is pastures and 18.2% is used for alpine pastures. It is located north of Biel/Bienne in a side valley of the Suze river. On 31 December 2009 District de Courtelary, the municipality's former district, was dissolved. On the following day, 1 January 2010, it joined the newly created Arrondissement administratif Jura bernois. Coat of arms The blazon of the municipal coat of arms is Or on a Base Vert a Peasant clead Gules with a spear Sable topped Argent fighting a Bear rampant Sable langued armed and viriled of the third. Demographics Orvin has a population () of . , 9.1% of the population are resident foreign nationals. Over the last 10 years (2000-2010) the population has changed at a rate of -4%. Migration accounted for 3.5%, while births and deaths accounted for -1.4%. Most of the population () speaks French (1,019 or 82.5%) as their first language, German is the second most common (175 or 14.2%) and Albanian is the third (15 or 1.2%). There are 6 people who speak Italian. , the population was 50.5% male and 49.5% female. The population was made up of 545 Swiss men (45.7% of the population) and 57 (4.8%) non-Swiss men. There were 539 Swiss women (45.2%) and 51 (4.3%) non-Swiss women. Of the population