Blitzingen had a population () of 90. , 24.4% of the population are resident foreign nationals. Over the last 10 years (1999–2009 ) the population has changed at a rate of -24%. It has changed at a rate of -4.8% due to migration and at a rate of -14.4% due to births and deaths. Most of the population () speaks
German (92 or 92.9%) as their first language with the rest speaking
Serbo-Croatian Of the population in the municipality 44 or about 44.4% were born in Blitzingen and lived there in 2000. There were 21 or 21.2% who were born in the same canton, while 11 or 11.1% were born somewhere else in Switzerland, and 21 or 21.2% were born outside of Switzerland. , there were 42 private households in the municipality, and an average of 2.3 persons per household. , a total of 42 apartments (21.5% of the total) were permanently occupied, while 140 apartments (71.8%) were seasonally occupied and 13 apartments (6.7%) were empty. Colors= id:lightgrey value:gray(0.9) id:darkgrey value:gray(0.8) ImageSize = width:960 height:210 PlotArea = height:150 left:100 bottom:50 right:100 AlignBars = justify DateFormat = x.y Period = from:0 till:210 TimeAxis = orientation:vertical AlignBars = justify ScaleMajor = gridcolor:darkgrey increment:40 start:0 ScaleMinor = gridcolor:lightgrey increment:8 start:0 PlotData= color:yellowgreen width:40 mark:(line,white) align:center bar:1850 from:start till:152 text:"152" bar:1860 from:start till:182 text:"182" bar:1870 from:start till:190 text:"190" bar:1880 from:start till:208 text:"208" bar:1888 from:start till:191 text:"191" bar:1900 from:start till:188 text:"188" bar:1910 from:start till:187 text:"187" bar:1920 from:start till:203 text:"203" bar:1930 from:start till:204 text:"204" bar:1941 from:start till:204 text:"204" bar:1950 from:start till:180 text:"180" bar:1960 from:start till:162 text:"162" bar:1970 from:start till:123 text:"123" bar:1980 from:start till:93 text:"93" bar:1990 from:start till:82 text:"82" bar:2000 from:start till:99 text:"99" ==Sights==