Living in South King County

South King County runs on a genuinely different economic foundation than the tech-campus Eastside just to its north -- warehousing, logistics, and manufacturing dominate the Green River Valley's land use, anchored by REI's Kent corporate headquarters, a dense concentration of Amazon fulfillment infrastructure, and Boeing's major assembly plants in both Renton (737 final assembly, roughly 12,000 employees) and Auburn (fabrication). Federal Way carries real, if now-diminished, corporate history as Weyerhaeuser's headquarters for decades before the timber giant's 2016 move to Seattle. This industrial base keeps housing genuinely more affordable here than the Eastside at similar distances from downtown Seattle, spanning Kent's roughly $680K down to Federal Way's roughly $615K. Burien and Des Moines add a distinct Puget Sound waterfront and marina identity that the more inland Kent, Auburn, and Federal Way don't share, both sitting just south of Sea-Tac Airport. This region is also among Washington's most ethnically and linguistically diverse, shaped by decades of immigrant and refugee resettlement, giving its restaurant scenes and retail corridors a genuinely international character distinct from several Eastside suburbs.

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Last reviewed: 2026-09-05. Independent research; see individual place pages for metric-level source attribution. This is not financial, tax, or legal advice -- confirm current figures with a local professional before making a decision.