AIA Central Valley is the local chapter of The American Institute of Architects. Our mission is to serve as the voice of the profession in our 17-county region, dedicated to professional development, advocacy and sharing the value and contributions of AIA architects. The 17 California counties we serve include Alpine, Amador, Butte, Colusa, El Dorado, Glenn, Lassen, Nevada, Placer, Plumas, Sacramento, Shasta, Sierra, Sutter, Tehama, Yolo, and Yuba.