San Antonio MSA

San Antonio’s new housing growth is not spread — it’s hyper-localized. 29.9% of all post-2020 homes are in just three ZIP codes: 78130, 78245, and 78253. This is not a sign of broad market expansion, but of extreme development concentration. The data comes from ALEX Intelligence’s latest analysis of the 2024 American Community Survey 5-Year Estimates. This level of spatial imbalance reveals that developers are betting on future infrastructure, not current demand. The result? A market where new supply is not easing affordability, but deepening geographic inequality. What does this mean for long-term value retention? How should buyers and investors adjust? Discuss. Share of the Market's Post-2020 Homes in Its Top Three Zip Codes, top 10 (ALEX Intelligence — U.S. Census Bureau 2024) #1 ZIP 78130 — 4,967 #2 ZIP 78245 — 4,804 #3 ZIP 78253 — 4,287 #4 ZIP 78109 — 3,268 #5 ZIP 78254 — 3,239 #6 ZIP 78252 — 2,501 #7 ZIP 78155 — 1,644 #8 ZIP 78223 — 1,128 #9 ZIP 78108 — 1,126 #10 ZIP 78244 — 1,060 Photos via Wikimedia Commons: Slide 1: Mr.Z-man (CC BY-SA 3.0) https://commons.wikimedia.org/?curid=9116233; Slide 2: Wkstormwater (CC BY-SA 4.0) https://commons.wikimedia.org/?curid=149538531; Slide 3: organic_veggie (CC BY-SA 3.0) https://commons.wikimedia.org/?curid=56040116; Slide 4: organic_veggie (CC BY-SA 3.0) https://commons.wikimedia.org/?curid=56040129 Source: https://alex-companies.com/data/2026-10-29-sa-msa-concentration-new-homes-zcta 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