Williamson County TX

Williamson County is attracting the highest-earning domestic migrants in the U.S. — not from Texas, but from King County, WA, where average incoming household income is $305,532. This data comes from ALEX Intelligence’s latest migration analysis, published October 12, 2026. The findings show that affluent professionals are choosing Williamson County for its quality of life, safety, and long-term growth potential — not just affordability. This is not a trend driven by local demand alone, but by a deliberate migration of wealth. How does this shift affect development, school funding, and land use planning in Round Rock, Leander, Cedar Park, Hutto, and Taylor? The source is directly available at https://alex-companies.com/data/2026-10-12-williamson-mig-in-agi. Average Income of Arriving Households, top 10 (ALEX Intelligence — U.S. Internal Revenue Service 2023) #1 King County, WA — $305,532 #2 Santa Clara County, CA — $253,603 #3 Alameda County, CA — $242,088 #4 Contra Costa County, CA — $210,157 #5 Washington County, OR — $209,549 #6 Middlesex County, MA — $207,182 #7 Snohomish County, WA — $205,690 #8 Hennepin County, MN — $197,061 #9 San Mateo County, CA — $176,071 #10 Hudson County, NJ — $174,863 Photos via Wikimedia Commons: Slide 1: James Howard (CC BY-SA 3.0) https://commons.wikimedia.org/?curid=21270025; Slide 2: Guard Shield (CC BY-SA 4.0) https://commons.wikimedia.org/?curid=176869696; Slide 3: Larry D. Moore (CC BY 4.0) https://commons.wikimedia.org/?curid=72081245; Slide 4: plutonature333 (CC BY-SA 3.0) https://commons.wikimedia.org/?curid=45374221 Source: https://alex-companies.com/data/2026-10-12-williamson-mig-in-agi View and join any or all of our communities — AI, quantum, and real estate: https://alex-companies.com/reports/linkedin-groups If there's an AI, quantum, or real estate community you'd like to see us convene, tell us — this portfolio grows by request. Real Estate Strategy & Intelligence Leader. Democratized Blue Ocean Strategist & Operator. Diane Hart Alexander, MBA, MHA Chair & CEO, ALEX Companies Designated Broker, Alexander Tiffany Southwest, LLC dba ALEX.realestate, et.al. Texas License #574877-B · Broker License #565194-BB [email protected] · +1 713.591.9902