The Census Transportation Planning Products (CTPP) are a set of special tabulations from the U.S. Census Bureau designed for transportation planners. CTPP contain tabulations by place of residence, place of work, and for flows between home and work. The data are available at various geographic levels including county, place (incorporated city or Census-designated place), census tract and Traffic Analysis Zone (TAZ). Profile sheets include data from both 1990 and 2000 for some basic characteristics such as household size, vehicle availability, means of transportation to work, and travel time to work.

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County & State Level – 2000 CTPP Profiles (PDF)

Washington State

King County
Kitsap County
Pierce County
Snohomish County
Clallam County
Island County
Jefferson County
Mason County
Thurston County
Whatcom County

Data Files

Reference Files

TAZ Maps

TAZ Shapefiles

Frequently Asked Questions

• What is a Traffic Analysis Zone (TAZ)?
  • TAZs are the units of the geographic boundary system used by the PSRC to run and report results from its Travel Demand Forecast Model. The TAZs nest within a larger Forecast Analysis Zone (FAZ) geographic boundary system, with each FAZ containing between 1 and 20 TAZs. TAZ boundaries generally, with few exceptions, also line up with census tract boundaries, with each census tract containing between 1 to 9 TAZs. There are a total of 938 TAZs in the region.