Real Estate Data API

78231 San Antonio

51 active listings out of 3.5K total properties we track in ZIP 78231 (San Antonio, TX) — listings, off-market homes, rentals, and full sales/tax history. Refreshed nightly.

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Active
51
Median
$530K
±0%
Sales (12mo)
100
Tracked
3.5K
Zoomed out

While you're here, take in the bigger picture — maps below show San Antonio metro, not just 78231. Same company, same dataset, different resolution.

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Over the past 12 months, ZIP 78231 has recorded 100 home sales.

Key Numbers
Tracked
3.5K
Active
51
Median list
$530K
Sales (12mo)
100
Get this data →

Right now, 51 homes are actively for sale in ZIP 78231. Median list price is $530K at $221/sqft. Hover each hex for micro-neighborhood stats (median price, $/sqft, top property type).

Key Numbers
Tracked
3.5K
Active
51
Median list
$530K
Sales (12mo)
100
Get this data →
Key Numbers
Tracked
3.5K
Active
51
Median list
$530K
Sales (12mo)
100
Get this data →
Key Numbers
Tracked
3.5K
Active
51
Median list
$530K
Sales (12mo)
100
Get this data →
Key Numbers
Tracked
3.5K
Active
51
Median list
$530K
Sales (12mo)
100
Get this data →
Key Numbers
Tracked
3.5K
Active
51
Median list
$530K
Sales (12mo)
100

Inventory breakdown

Distribution of the 51 currently-active listings in ZIP 78231. Full dataset covers 3.5K properties — listings, off-market homes, rentals, and full history.

Active by price range
Under $300K 1 (2%)
$300K–$500K 21 (41.2%)
$500K–$750K 17 (33.3%)
$750K–$1M 3 (5.9%)
$1M–$2M 2 (3.9%)
$2M+ 7 (13.7%)
Active by bedroom count
Studio/1 bd 0
2 bd 1
3 bd 21
4 bd 21
5+ bd 8
Active by property type
Single Family 51 (100%)
For Developers

Get San Antonio 78231 data in your app

curl
request 
GET https://api.straply.com/v1/markets/zip/78231
Authorization: Bearer $STRAPLY_KEY
200 OK response 
{
  "zip": "78231",
  "total_tracked": 3487,
  "active": 51,
  "median_list": 530000
}
Get an API key Read the docs

ZIP 78231 · San Antonio, TX real estate: market summary

As of June 2026, Straply tracks 3,487 homes in ZIP 78231 (San Antonio, TX), with 51 active for sale at a median list price of $530,000 (~$221/sq ft). Notably, most homes were built in the 1980s.

Median list price
$530,000
Median $/sq ft
$221
Active listings
51
Properties tracked
3,487

Frequently asked: ZIP 78231 · San Antonio, TX real estate

What is the median home price in ZIP 78231?

The median list price in ZIP 78231 (San Antonio, TX) is $530,000 (about $221 per square foot), based on 51 active listings tracked by Straply as of June 2026.

What price range are homes in ZIP 78231?

Active listings in ZIP 78231 (San Antonio, TX) concentrate in: 41% $300k–$500k and 33% $500k–$750k.

How many homes are for sale in ZIP 78231?

Straply is tracking 51 active listings in ZIP 78231 (San Antonio, TX) out of 3,487 properties on record as of June 2026.

How old are the homes in ZIP 78231?

Most homes in ZIP 78231 (San Antonio, TX) were built in the 1980s. About 66% were built after 1980. The newest tracked home dates to 2026.

What types of homes are in ZIP 78231?

ZIP 78231 (San Antonio, TX) is mostly single-family homes (100% of listings).

How many bedrooms do homes in ZIP 78231 typically have?

The most common size in ZIP 78231 (San Antonio, TX) is 3 bd.

Data as of June 2026. Source: Straply. For address-level history and programmatic access, use the Straply API.