The general purpose open data portal for the State of Washington.

Compiled by the OFM, contains the "most frequently requested information" about "Population, Economy, State Government Finance, Human Services, Criminal Justice, Education, Natural Resources, Environment, Energy, Transportation, and Local Government."

From the Office of Financial Management, "information about Washington counties in the areas of criminal justice, demographics, the economy, local government finance, and human services."

Washington State Department of Enterprise Services (DES). Official website for Washington State government and the gateway to state and local information for Washington state.

Regional economic data.

Environmental data sources, listed by topic area.

Data on infectious diseases, injury & trauma, environmental health, immunizations, healthcare, etc.

Maps, Geospatial Data, Collision Data, Travel Data, Roadway & Bridge Data, etc.

Provides data from "research on a variety of issues related to the state budget, public policy and demographics. Topics include the economy, labor force, criminal justice, health care, and education."

"Data and analysis of Washington state's employment conditions, economy, job market
and work force."

"Provides credible research, value-added information, education services and project-oriented research" on real estate and the housing market in Washington State.

"A compilation of statistics on gross income, taxable retail sales and accrued tax liability as reported by Washington State excise taxpayers."

Links to data for Pierce County, including demographic, economic, financial, human services, etc.

Interface for many many data sets provided by the City of Tacoma. Includes data about business, public safety, and economic development. Mapping functionality for select data is particularly informative.

Financial reports from the City of Tacoma.

Data made available from the city of Seattle. Browse or search using the categories on the right side of the screen, or check out these help videos to get an overview.

Provides data on a wide variety of demographic information on race, income, housing, building permits, employment, transportation and more. Links to labor force, per capita income, population and regional consumer price index information.

Air quality data and reports from the Puget Sound Clean Air Agency, which covers King, Kitsap, Pierce and Snohomish counties.