Other pages about the topic: Population

Local Update of Census Addresses (LUCA)

The Local Update of Census Addresses operation or LUCA, is a voluntary decennial census operation. LUCA is the only opportunity prior to the 2020 Census for tribal, state, and local governments to review and update the U.S. Census Bureau’s residential address list and flag group quarters for their jurisdiction.

Counting people experiencing homelessness during the 2020 Census

The intent of the 2020 Census is to count everyone living in the United States, including people experiencing homelessness or living in transitory locations. General information about how the homeless will be counted and categorized in the 2020 Census results is provided below, as well as references to more detailed explanations.

Hard-to-count population - 2020 Census

Understand the typology of hard-to-count (HTC)

In every census, there are certain socioeconomic and demographic factors that include age, housing status, and language that can influence self-response. The traditional socioeconomic and demographic factors that have tended to correlate with lower levels of self-response have included:

Population by county — census data (map)

Population, 2010

 

Population, 2000

Population Change, 2000–2010

Population by race

Washington state population by race

2018

Population by age, mapped by county

Median Age, 2010

In 2010, the median age of persons living in Washington state was 37.3 years. In 2017 the median age had increased to 38.2 years.

Jefferson County had the highest median age in 2010 at 53.9 years. By 2017, the median age in Jefferson County had reached 57.9 years.

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