Other pages about the topic: Forecasting & Research
OFM produces annual population estimates for ‘special areas’ required by statue. Special areas include highway urban areas, public transportation benefit areas, and the thermal electric generating facility area. The special area estimates are based on data produced by the Small Area Estimate Program using GIS-based spatial interpolation procedures.
Population density is the average number of people per unit of land area. In the U.S., the most common unit of population density is persons per square mile. The land area measurement excludes lakes and other water areas within.
Population change
In accordance with RCW 43.62.035, the Office of Financial Management shall determine the percentage increase in population for each county over the preceding ten-year period, as of April 1.
Click on a tab below to access geographic data. Some of the data files are large and may require additional time to download.
Office of Financial Management
Forecasting and Research Division
P.O. Box 43124
Olympia, WA 98504-3124
360-902-0599 -- Main Reception
360-586-1988 -- Fax
These detailed demographic profiles are based on the 2010 Census Summary File 2 product which contains detailed demographic information for up to 331 different race/ethnic groups (250 in the case of Washington state). Summary File 2 includes information on age, sex, households, families, relationship to householder, housing units, and group quarters. Data are available for geographic entities that have at least 100 persons in a specific race/ethnic group.
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