This series is calculated by FRB-St. Louis using data series from the Bureau of Labor Statistics. The FRB-San Francisco District includes all of Alaska, Arizona, California, Hawaii, Idaho, Nevada, Oregon, Utah, and Washington.
Source: US. Bureau of Labor Statistics
US. Bureau of Labor Statistics, Civilian Labor Force in FRB-San Francisco District (DISCONTINUED) [D12LFN], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/D12LFN, May 4, 2016.