Description: Official Planning Area Boundaries of San Luis Obispo County. The Coordinates for this dataset are State Plane Coordinate System, Zone 5, NAD 1983 Feet. This is a static copy of Planning Areas for the 2018 IRWM plan. Please contact County of San Luis Obispo Planing Devision GIS for most current data. Credit: The County of San Luis Obispo Planning & Building Geographic Technology & Design