Cost of Living in SeaTac, WA - Updated Prices & Insights
Solo nomad: Estimated monthly costs are $1,338 (excluding rent), and $3,116 including rent.
Family of 3: Estimated monthly costs are $3,153 (excluding rent), and $5,656 including rent.
CityCost data is based on AI and user input – minor inaccuracies may occur.
Last update: January 12, 2026
SeaTac, WA Median Internet Speeds (Updated December 2025)
The chart highlights the Precision Threshold for mobile and fixed broadband internet speeds, updated quarterly.