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The Most Expensive ZIP Codes in San Antonio

Ranked from observed Zillow data as of June 2026 — not a forecast. 105 ZIP codes in the San Antonio-New Braunfels, TX area. See the San Antonio forecast →

Cheaper
More expensive· dot size = population

10 most expensive ZIP codes in San Antonio are ringed on the map; all 115 ZIPs shown, colored by typical home value and sized by population. Hover any dot for its ZIP and value.

Which are the best ZIP codes to buy in San Antonio?

There is no single answer, because "best" depends on what a buyer is optimizing for. The three tables below rank the same 105 ZIP codes three different ways: by typical home value, by how much prices have actually moved over the past year, and by how far a home's price stretches against observed rent. A ZIP code that leads one list rarely leads all three.

Most expensive — June 2026

Ranked by typical home value (Zillow ZHVI), highest first.

#ZIPCityPopulationTypical value
178257San Antonio10.4K$939,713
278004Bergheim541$677,742
378205San Antonio1.7K$607,936
478015Fair Oaks Ranch23.5K$603,980
578256San Antonio12.0K$601,475
678006Boerne42.2K$595,837
778266San Antonio7.3K$577,084
878070Spring Branch19.8K$576,476
978132New Braunfels40.4K$564,416
1078255San Antonio18.1K$554,113

Fastest-appreciating — past 12 months

Ranked by observed price change over the trailing year, not a forecast.

#ZIPCityPopulationTypical value1-yr change
178113Pleasanton3.3K$436,783+6.9%
278052Lytle6.2K$290,666+5.9%
378002Atascosa7.5K$299,323+3.7%
478069Somerset6.9K$241,813+3.2%
578257San Antonio10.4K$939,713+3%
678065Poteet11.8K$237,138+2.3%
778638Kingsbury2.1K$383,983+2.2%
878064Pleasanton16.4K$264,170+1.4%
978237San Antonio36.9K$130,639+1.4%
1078160Stockdale4.7K$357,222+1.1%

Best rental value — past 12 months

Ranked by price-to-rent (typical value ÷ observed annual rent), lowest first — the ZIP codes where buying looks cheapest relative to renting.

#ZIPCityPopulationTypical valuePrice ÷ annual rent
178207San Antonio54.1K$112,3447.3×
278211San Antonio30.6K$133,9017.9×
378237San Antonio36.9K$130,6398.5×
478208San Antonio3.9K$178,9389.1×
578219San Antonio16.9K$169,9099.1×
678220San Antonio18.5K$153,8969.2×
778242San Antonio36.0K$156,6809.5×
878202San Antonio10.0K$164,8019.9×
978227San Antonio44.1K$165,93010.1×
1078222San Antonio25.0K$211,66410.4×

Frequently asked questions

What is the most expensive ZIP code in the San Antonio area?

78257 (San Antonio), with a typical home value of $939,713 as of June 2026, the latest month Zillow has published.

Which are the best ZIP codes to buy in San Antonio?

It depends on the goal. This page ranks three separately: the most expensive ZIP codes (highest typical value), the fastest-appreciating (largest observed price gain over the past year), and the best rental value (lowest price relative to observed rent). The three lists often name different ZIP codes.

Is this page showing forecasts?

No. Every number on this page is observed Zillow data as of June 2026, not a forecast. Sialim's forecasts, at the metro level, are on the linked metro forecast page.

ZIP-level values shown here are observed Zillow data, not forecasts. Sialim's forecasting engine works at the metro level today; ZIP-level forecasts are planned for Sialim Pro. Data © Zillow, via Zillow Research.