Sollefteå is a locality and the seat of Sollefteå Municipality in Västernorrland County, Sweden with 8,562 inhabitants in 2010.The earliest written account on Sollefteå is found in a script dating back to 1270. During this time the name of the village was given as De Solatum - a name that can be interpreted as a composition of Sol (sun) and at (property) i.e.