Subregions

Subregional Boundaries
Subregional Population
Age Distribution
Income Distribution
Poverty Status
Ethnicity
Race

Each part of the county has a unique geography, built environment, demographics, and human service issues. This section of the Community Assessment contains information about the 4 subregions of King County including demographics, issues of particular importance to the provision of human services in each area.

Additional demographic data, broken out by subregion is available in the Key Data and Demographics section of the Community Assessment website.

Subregional Boundaries

King County is divided into four subregions in order to distinguish subregional trends.
Boundaries are delineated using the 19 school districts serving the county. Read more about Geographic Boundaries
Data is queried by census tract then grouped by district boundaries to create a subregion.

Using the 2000 census tract boundaries, the data is organized as follows:

North King County 31 census tracts
East King County 88 census tracts
South King County 130 census tracts
Seattle 124 census tracts

Download Data | Source: Claritas 2008 Update (Census Tract Level)

Subregional Population

Between 1990-2000, the U.S. Census reports that King County grew at a rate of 15.2%, with an additional 7.2% growth in the last eight years (2000-2008). The following data shows how distinct growth patterns are emerging by subregion.

North King County

North King County currently makes up 7.7% of the King County population.
1990 to 2000 growth rate: 9.7%. (12,322 people).
2000 to 2008 growth rate 2.8% (3,916 people).
This represents the slowest growth rate among King County subregions.

East King County

East King County currently represents 24.9% of the total County population.
1990 to 2000 growth rate: 19.4% (67,064)
2000 to 2008 growth rate: 12.3% (50,778 people)
East King county has recorded the highest growth rate since 2000

South King County

South King County has the largest population with 35.6% of the total county population.
1990 to 2000 growth rate: 20%.
2000 to 2008 growth rate 6.9% (42,636 people).
South King County has the second highest growth rate and largest population

Seattle

Seattle currently has the second highest population with 31.7% of the total King County population.
1990 to 2000 growth rate: 9.1%
2000 to 2008 growth rate 4.9% (27,428 people)

Download Data | Source: Claritas 2008 Update (Census Tract Level)

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Age Distribution

Below is a subregional look at how different age breakouts are reflected within King County based on 2008 data.

2008 King County Age Distribution by Subregion
	0-6	7-17	18-64	65-84	85+
North King County	11,735	20,362	95,092	14,266	2,540
East King County	42,100	67,405	302,794	44,665	7,057
South King County	67,287	102,177	426,183	58,963	8,424
Seattle	37,787	56,253	426,307	57,227	13,167
Total	158,908	246,198	1,250,376	175,121	31,188

Download Data | Source: Claritas 2008 Update (Census Tract Level)

North King County

Age category 0-6 represents 8.1% of North King county's population.
The 7-17 year age rang population comprises14.1% of its population.
Ages 18-64 is comprised of 66.0% of the region's population making this region second to Seattle for what is seen as the traditional working ages.
This region's Age 65-84 category is tied with Seattle at 9.9%, having the highest percent population in the county for this demographic
Persons age 85+ represent 1.8% of the region's population.

East King County

The population age 0-6 represents 9.1% of East King county.
The 7-17 year population is tied with North King county with 14.5% of its population in this age range.
Ages 18-64 is comprised of 65.3% of the region's population.
Persons age 65-84 represent 9.6% of the region's population.
The population age 85+ represent 1.5% of the region.

South King County

42.3% of the age 0-6 population resides in South King County.
Age category 7-17 represents 41.5% of the county population for this group.
Ages 18-64 represents 64.3% of the region's age mix. When comparing to other subregions, this percentage leaves South King County with the lowest working age demographic as a proportion of its population. Countywide, however, this region still includes 34.1% of this population, second to Seattle.
The age 65-84 category accounts for.8.9% of the subregion population
The category age 85+ is again the lowest percentage of the subregion with 1.3% of South County's residents.

Seattle

With 6.4% of the population being Age 0-6, Seattle's young population represents the lowest regional proportion compared to other subregions
Age 7-17 is again the lowest regional proportion represented by 9.5% of the Seattle population.
Seattle boasts the largest working age demographic age 18-64 with 72.2% of its population
Seattle has 9.7% of its population aged 65-84.
This region has the highest regional percentage of persons age 85+ at 2.2% of the subregion population.

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Income Distribution

A quick point of reference to determine the distribution of income is to utilize a line chart in order to divide the five income scales into the percentage of regional population that falls into each category. A snapshot of the 2008 household income levels shows that the higher percentages of low income are concentrated in Seattle followed by South King County. In contrast, over 1/3 of East King County's population falls in the income category $100,000+. At the same time 15.4% of this region's population still reports incomes of $34,999 or less.

Download Data | Source: Claritas 2008 Update (Census Tract Level)

Poverty Status

Download Data | Source: Claritas 2008 Update (Census Tract Level)

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Ethnicity

Hispanic/Latino is tracked as the sole ethnicity published by the US Census. Per Federal guidelines the US Census survey forms first ask each participant to indicate if they are Hispanic/Latino. This ethnicity question is then followed by asking which Race each participant self identifies as. Here, we publish the Hispanic/Latino Results followed by all Race categories acknowledging that a person of Hispanic/Latino Ethnicity is included in the Race charts.

Download Data | Source: Claritas 2008 Update (Census Tract Level)

Race

The US Census Bureau publishes 5 Race categories (African American/Black, American Indian/Native Alaskan, Asian, Native Hawaiian/Other Pacific Islander and White). Additionally, all persons who self-identify with multiple race categories are assigned to a category titled "Two or More Races" and those who do not identify a Race or the Race is not on the given inventory are reclassified to "Other Race."

The below pie charts include a designation of White Race and Non White on the left pie chart. Due to scaling and presenting data when one category, in this case, White Race represents a large portion of the population, this begs to show the mix of White and Non White on a single chart then further expanding on the proportionality of the Non White Population in a separate chart, in this case on the right hand side.