Other pages about the topic: Forecasting & Research

2010 Census detailed demographic profiles

These detailed demographic profiles are based on the 2010 Census Summary File 1 product. The profiles show data for age, sex, race, Hispanic or Latino origin, household relationship, household type, group quarters population, housing occupancy, and housing tenure.

Click on one of the links below to find a detailed demographic profile for your area of interest.

American Community Survey

The American Community Survey (ACS) is an ongoing survey of the nation's population that provides detailed demographic, housing, social, and economic data—data that used to be collected via the decennial census long form.

Annexations and municipal boundary changes

Per RCW 35.13.260 and RCW 35A.14.700, jurisdictions must send annexation paperwork to the Office of Financial Management (OFM) within 30 days of the annexation effective date. OFM approval is necessary for a city to qualify for revenues related to population.

April 1 official population estimates

RCW 43.62.030 states that the Office of Financial Management (OFM) shall annually determine the April 1 populations of all cities and towns of the state.  OFM population estimates for cities and towns are used in state program administration and in the allocation of selected state revenues (RCW 43.62.020).  Population estimates for counties are used to allocate revenues as specified in RCW 36.13.100 and RCW 43.62.030.

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