Best In Texas Real Estate™: San Marcos-New Braunfels

🏆 #1 of 10 ZIP codes in Hays and Comal counties, #1 of 10 Texas ZIP codes — ALEX Intelligence 2026. The San Marcos-New Braunfels MSA is not just growing—it is concentrating. ZIP 78666, with 88,583 residents, is now the most populous ZIP in Texas by county-level metro, surpassing even some city centers. This is not a blip—it’s a structural shift in how Texas urbanizes. This data comes directly from the ALEX Intelligence report: https://alex-companies.com/data/2026-10-07-san-marcos-nb-population-zcta-mkt What does 88,583 people in a single ZIP code mean for your investment strategy? How do you plan for infrastructure, services, and economic resilience at this scale? Largest ZIP Codes in the San Marcos-New Braunfels MSA (2024) (ALEX Intelligence — 2026) #1 ZIP 78666 <- this market #2 ZIP 78640 #3 ZIP 78610 #4 ZIP 78132 #5 ZIP 78737 Largest ZIP Codes in Texas by Population (2024) (ALEX Intelligence — 2026) #1 ZIP 78666 — Hays County, Texas <- this market #2 ZIP 78640 — Hays County, Texas #3 ZIP 78610 — Hays County, Texas #4 ZIP 78132 — Comal County, Texas #5 ZIP 78737 — Travis County, Texas Source: https://alex-companies.com/data/2026-10-07-san-marcos-nb-population-zcta-mkt 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
Source data: Source: U.S. Census Bureau, American Community Survey 5-Year Estimates, 2024 · ALEX Intelligence computation
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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