Williamson County TX
2026-10-22
13.3% of Williamson County’s ZIP codes now exceed $500,000 in median home value—what does that mean for the next wave of buyers?
This isn’t just about price; it’s about the new geography of access. ALEX Intelligence’s latest analysis reveals that Round Rock and Hutto now rank as the top two ZIP codes in the Austin metro and Texas for homes above $500K. This shift is not a national trend—it’s a hyper-local evolution. As affordability fractures by ZIP code, the next generation of buyers faces a new reality: growth zones are no longer accessible to all. The real story is not how much homes cost, but where they are—and who can afford to stay.
Photos via Wikimedia Commons: Slide 1: Larry D. Moore (CC BY 4.0) https://commons.wikimedia.org/?curid=123607220; Slide 2: plutonature333 (CC BY-SA 3.0) https://commons.wikimedia.org/?curid=45374221; Slide 3: James Howard (CC BY-SA 3.0) https://commons.wikimedia.org/?curid=21270025; Slide 4: plutonature333 (CC BY-SA 3.0) https://commons.wikimedia.org/?curid=45374252
Share of Zip Codes With Median Home Value Above $500,000, top 10 (ALEX Intelligence — U.S. Census Bureau 2024)
#1 ZIP 78717 — $652,200
#2 ZIP 78642 — $506,600
#3 ZIP 78681 — $497,300
#4 ZIP 78628 — $496,600
#5 ZIP 78613 — $496,200
#6 ZIP 78729 — $476,200
#7 ZIP 78665 — $474,100
#8 ZIP 78633 — $464,600
#9 ZIP 78626 — $387,700
#10 ZIP 78634 — $375,200
Source: https://alex-companies.com/data/2026-10-22-williamson-threshold-home-value-500000-zcta
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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
Source data: Source: U.S. Census Bureau, American Community Survey 5-Year Estimates, 2024 · ALEX Intelligence computation
Licensed by the Texas Real Estate Commission. Broker: Alexander Tiffany Southwest, LLC · License #565194-BB.
Diane Hart Alexander, Chair & CEO, ALEX Companies · Designated Broker · #574877-B · George Arnold Alexander III, Director, ALEX Companies · Associate Broker · #574878-B
Texas Real Estate Commission Information About Brokerage Services · TREC Consumer Protection Notice · trec.texas.gov
Diane Hart Alexander, Chair & CEO, ALEX Companies · Designated Broker · #574877-B · George Arnold Alexander III, Director, ALEX Companies · Associate Broker · #574878-B
Texas Real Estate Commission Information About Brokerage Services · TREC Consumer Protection Notice · trec.texas.gov