The Placer County Economic and Demographic Profile 2007 provides an economic and demographic survey of Placer County, and provides detailed statistics on the three distinctive regions of the county: the Valley, the Gold Country and the High Country. Placer County Economic & Demographic Profile 2007 Placer County Economic & Demographic Profile 2006 Placer County Economic & Demographic Profile 2005 Questions? Contact Rob Braulik at 916.625.5560.