A large database of wide-ranging macroeconomic time-series data, including regional data, from the Federal Reserve Board of St. Louis. Some of the data in FRED is repackaged from the BLS and BEA.
WA and Spokane - State, County, and City Economic Data
The Quarterly Business Reviews from the WA DOR provides statistics on gross income, taxable retail sales, and accrued tax liability. If you use the Create a Report function, data is available at the state, county, or city level.
The EWU Institute for Public Policy & Economic Analysis was created in 2002 to provide data and analysis about a variety of factors in the region that will be useful for businesses, communities and others as they plan for the future.