Montfaucon has a population () of . , 4.5% of the population are resident foreign nationals. Over the last 10 years (2000–2010) the population has changed at a rate of 7.4%. Migration accounted for 3.7%, while births and deaths accounted for 3.7%. Most of the population () speaks
French (445 or 91.8%) as their first language,
German is the second most common (35 or 7.2%) and
Spanish is the third (2 or 0.4%). Of the population in the municipality, 215 or about 44.3% were born in Montfaucon and lived there in 2000. There were 135 or 27.8% who were born in the same canton, while 92 or 19.0% were born somewhere else in Switzerland, and 25 or 5.2% were born outside of Switzerland. , there were 200 private households in the municipality, and an average of 2.6 persons per household. , the construction rate of new housing units was 12 new units per 1000 residents. Colors= id:lightgrey value:gray(0.9) id:darkgrey value:gray(0.8) ImageSize = width:1020 height:210 PlotArea = height:150 left:100 bottom:50 right:100 AlignBars = justify DateFormat = x.y Period = from:0 till:660 TimeAxis = orientation:vertical AlignBars = justify ScaleMajor = gridcolor:darkgrey increment:100 start:0 ScaleMinor = gridcolor:lightgrey increment:20 start:0 PlotData= color:yellowgreen width:40 mark:(line,white) align:center bar:1818 from:start till:480 text:"480" bar:1850 from:start till:497 text:"497" bar:1860 from:start till:527 text:"527" bar:1870 from:start till:576 text:"576" bar:1880 from:start till:638 text:"638" bar:1888 from:start till:583 text:"583" bar:1900 from:start till:609 text:"609" bar:1910 from:start till:654 text:"654" bar:1920 from:start till:576 text:"576" bar:1930 from:start till:462 text:"462" bar:1941 from:start till:460 text:"460" bar:1950 from:start till:540 text:"540" bar:1960 from:start till:524 text:"524" bar:1970 from:start till:455 text:"455" bar:1980 from:start till:439 text:"439" bar:1990 from:start till:474 text:"474" bar:2000 from:start till:485 text:"485" ==Politics==