Staffelbach is a municipality in the district of Zofingen in the canton of Aargau in Switzerland. Geography Staffelbach has an area, , of . Of this area, or 53.4% is used for agricultural purposes, while or 39.1% is forested. Of the rest of the land, or 7.0% is settled (buildings or roads), or 0.6% is either rivers or lakes. Of the built up area, housing and buildings made up 3.2% and transportation infrastructure made up 2.1%. Power and water infrastructure as well as other special developed areas made up 1.3% of the area Out of the forested land, 37.6% of the total land area is heavily forested and 1.6% is covered with orchards or small clusters of trees. Of the agricultural land, 31.2% is used for growing crops and 20.6% is pastures, while 1.6% is used for orchards or vine crops. All the water in the municipality is flowing water. Coat of arms The blazon of the municipal coat of arms is Azure a Bridge Argent masoned above two barrulets wavy in base and in chief a Mullet of the same. Demographics Staffelbach has a population () of . , 6.6% of the population are foreign nationals. Over the last 10 years (1997–2007) the population has changed at a rate of 7.6%. Most of the population () speaks German (96.6%), with Italian being second most common ( 0.9%) and Serbo-Croatian being third ( 0.8%). The age distribution, , in Staffelbach is; 98 children or 9.4% of the population are between 0 and 9 years old and 148 teenagers or 14.2% are between 10 and 19. Of the adult population, 107 people or 10.3% of the population are between 20 and 29 years old. 158 people or 15.2% are between 30 and 39, 192 people or 18.5% are between 40 and 49, and 140 people or 13.5% are between 50 and 59. The senior population distribution is 87 people or 8.4% of the population are between 60 and 69 years old, 71 people or 6.8% are between 70 and 79, there are 36 people or 3.5% who are between 80 and 89, and there are 2 people or 0.2% who are 90 and older. , there were 26 homes with 1 or 2 persons in the household, 144 homes with 3 or 4 persons in the household, and 176 homes with 5 or more persons in the household. , there were