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2010 Census Adjusted Urban Area (AUA) Boundaries

The Washington State Department of Transportation (WSDOT), in cooperation with the Federal Highway Administration (FHWA), has adopted specific procedures for adjusting the Urban Area (UA) boundaries. These boundaries are important because they define the breaks between rural and urban areas for transportation planning and operational purposes. This guidance defines the concepts and criteria, and establishes the procedures to be used by local agencies and Metropolitan Planning Organizations (MPOs) for requesting changes to UA boundaries.


Functional Classification of Highways (new)

WSDOT Adjusted Urban Area Boundary Guidance
(pdf 136 kb)

Boundary Review Team (pdf 168 kb)

WSDOT Schedule of Adjusted Urban Area Boundary (AUA) Process (pdf 38 kb)

Census 2010 Urban Area Frequently Asked Questions

MAP-21 Suballocation of Apportioned Funds Questions and Answers


2010 Census Urbanized Areas and Urban Clusters Map (pdf 376 kb)

Shape Files
Urbanized Areas and Urban Clusters

Note: The Urbanized Area or Cluster Area maps can be opened and saved to hard drives for printing purposes. The maps were created to print out on 3’ to 4’ sized paper (plotters) and may not print on 11”x17” paper.