Local supply and market context for residential assisted living in Seatac.
Updated July 2026
Seatac, WA has 65 licensed assisted living homes (426 beds, averaging 6.6 per home). It sits in King County, a strong RAL market scoring 7.4/10, with 129,465 seniors 75+ growing 13.8%.
Licensed homes
65
Seatac
Licensed beds
426
total
Avg home size
6.6 beds
per home
County opportunity
7.4/10
Strong
The Seatac assisted living market
Seatac has 65 licensed assisted living homes totaling 426 beds — an average of 6.6 beds per home, skewing toward small residential (RAL-style) homes. As part of King County, it draws on a 75+ population of 129,465 growing 13.8%, with a senior median income of $76,893. See the full King County market or all Washington top markets.
Frequently asked questions
How many assisted living homes are in Seatac, WA?
Seatac has 65 licensed assisted living homes with about 426 total beds.
Is Seatac a good place to open an assisted living home?
Seatac is in King County, which scores 7.4/10 (Strong) on RAL Market Scout; its 75+ population is growing 13.8%. Current local supply is 65 homes.
What county is Seatac in?
Seatac is in King County, Washington.
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Sources: Home and bed counts from the Washington licensing roster (RAL Market Scout pipeline). County demand, growth, and income from U.S. Census ACS. Snapshot: 2026-07. Informational only — not legal, financial, or investment advice.