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King County is proud to be both part of the community and a representative to people who live and work there. Here's an outline of our services.

Transportation services

King County International Airport/Boeing Field

King County International Airport/Boeing Field

King County International Airport—also known as Boeing Field—is one of the busiest primary non-hub airports in the nation. Located just five miles south of downtown Seattle, it averages more than 300,000 takeoffs and landings each year. In 2001, the National Air Transportation Association selected it as one of the “100 Most Needed Airports” in the United States. It is financed by airport tenants’ and customers’ fees, and receives no general tax revenues. The airport’s economic impact is $3.2 billion in business sales that support 12,618 jobs. It creates $804 million in labor income. The airport’s 150 tenant businesses also directly support 4,900 jobs.

King County Executive Dow Constantine

King County Aerospace Alliance

The King County Aerospace Alliance was launched by Executive Dow Constantine in October 2011 to unite local jurisdictions, public sector groups, business, labor and schools toward one goal - fostering the long-term economic vitality, growth and global competitiveness of the local aerospace industry.

New South Park Bridge (under construction)

South Park Bridge

The South Park Bridge, which began operating in 1931, is one of only a few crucial connections to the Lower Duwamish industrial area. In August 2011, King County broke ground on a new bridge to replace the old deteriorating structure closed in 2010. In addition to a new, state-of-the art replacement bridge, King County is building intersection improvements, new rain gardens, riverbank enhancements, and street and drainage improvements.

Accessible bus and van services

Accessible transportation options are available for people who may need additional assistance getting to work, medical appointments or other services.

Bike trails

Major bike trails along East Marginal Way and West Marginal Way provide South Park with environmentally-friendly commute options as well as recreation opportunities.


Environmental services

Wastewater treatment

South Treatment Plant near Renton, Washington King County’s Wastewater Treatment Division. Formerly known as Metro, the clean-water utility now operated by King County has made remarkable progress improving regional water quality and the health of the Lower Duwamish.

From building treatment plants to cleaning up contaminated sedimentcontrolling combined sewer overflows and inspecting and regulating businesses to keep new and ongoing sources of pollution out of the waterway, our work continues into the 21st century.

Planning and conservation

Map of Green-Duwamish Watershed Protecting water quality in the Lower Duwamish actually starts in the Green/Duwamish River Watershed. King County’s Department of Natural Resources and Parks staff develop analytical tools for evaluating current and future water quality issues in the Green-Duwamish River watershed, and provide water quality information to a variety of programs, such as wastewater capital planning (including the Combined Sewer Overflow (CSO) program and habitat conservation planning), WRIA 9 salmon conservation planning, stormwater management efforts, and the Department of Ecology's TMDL (Total Maximum Daily Load).

Health services

White Center Public Health Center

Public Health Centers

Public Health Seattle-King County operates the White Center Public Health Center. There are other Community Health Centers nearby not affiliated with Public Health Seattle-King County.