▁V ac an cies ▁in ▁the ▁fis cal ▁offic ership ▁or ▁on ▁the ▁board ▁of ▁trust ees ▁are ▁filled ▁by ▁the ▁remaining ▁trust ees . ▁ ▁References ▁ ▁External ▁links ▁Township ▁website ▁County ▁website ▁ ▁Category : T own ships ▁in ▁Rich land ▁County , ▁Ohio ▁Category : T own ships ▁in ▁Ohio <0x0A> </s> ▁The ▁metropol itan ▁area ▁surrounding ▁and ▁including ▁Detroit , ▁Michigan ▁is ▁a ▁ten - count y ▁area ▁with ▁a ▁population ▁of ▁over ▁ 5 . 9 ▁million , ▁a ▁work force ▁of ▁ 2 . 6 ▁million , ▁and ▁about ▁ 3 4 7 , 0 0 0 ▁business es . ▁Detroit ' s ▁six - count y ▁Metropolitan ▁Statist ical ▁Area ▁has ▁a ▁population ▁of ▁about ▁ 4 . 3 ▁million , ▁a ▁work force ▁of ▁about ▁ 2 . 1 ▁million , ▁ ▁and ▁a ▁G ross ▁Metropolitan ▁Product ▁of ▁$ 2 0 0 . 9 ▁billion . ▁Detroit ' s ▁urban ▁area ▁has ▁a ▁population ▁of ▁ 3 . 9 ▁million . ▁A ▁ 2 0 0 5 ▁Price water house Co op ers ▁study ▁estimated ▁that ▁Detroit ' s ▁urban ▁area ▁had ▁a ▁G ross ▁Dom estic ▁Product ▁of ▁$ 2 0 3 ▁billion . ▁ ▁About ▁ 1 8 0 , 5 0 0 ▁people ▁work ▁in ▁dow nt own ▁Detroit , ▁compr ising ▁one - fif th ▁of ▁the ▁city ' s ▁employ ment ▁base . ▁ ▁Metro ▁Detroit ▁has ▁prop elled ▁Michigan ' s ▁national ▁ranking ▁in ▁emer ging ▁technology ▁fields