ation ▁infrastr ucture . ▁ ▁Of ▁the ▁un product ive ▁areas , ▁▁ 0 . 1 9 % ▁is ▁un product ive ▁flow ing ▁water ▁( ri vers ) ▁and ▁ 0 . 3 5 % ▁is ▁other ▁un product ive ▁land . ▁▁ ▁The ▁municipality ▁is ▁located ▁in ▁the ▁upper ▁valley ▁of ▁the ▁En zi w igger ▁river ▁in ▁the ▁northern ▁Nap f gebiet . ▁ ▁It ▁is ▁a ▁typical , ▁for ▁the ▁al pine ▁region , ▁settlement ▁of ▁scattered ▁farm h ouses , ▁al pine ▁me adow ▁gra zing ▁and ▁forest ry ▁settlement s . ▁ ▁Dem ograph ics ▁Her g is w il ▁bei ▁Will is au ▁has ▁a ▁population ▁( as ▁of ▁) ▁of ▁. ▁ ▁, ▁ 5 4 ▁or ▁about ▁ 3 . 0 % ▁are ▁not ▁Swiss ▁citizens . ▁ ▁Over ▁the ▁last ▁ 1 0 ▁years ▁the ▁population ▁has ▁decre ased ▁at ▁a ▁rate ▁of ▁- 3 . 5 %. ▁ ▁Most ▁of ▁the ▁population ▁() ▁speak s ▁German ▁ ▁( 9 8 . 0 % ), ▁with ▁Alban ian ▁being ▁second ▁most ▁common ▁( ▁ 0 . 8 %) ▁and ▁Ser bo - C ro at ian ▁being ▁third ▁( ▁ 0 . 3 %). ▁ ▁In ▁the ▁ 2 0 0 7 ▁election ▁the ▁most ▁popular ▁party ▁was ▁the ▁C VP ▁which ▁received ▁ 5 4 . 7 % ▁of ▁the ▁vote . ▁ ▁The ▁next ▁three ▁most ▁popular ▁parties ▁were ▁the ▁SV P ▁( 2 4 % ), ▁the ▁F DP ▁(