Real Estate Data API

78203 San Antonio

237 active listings out of 3.1K total properties we track in ZIP 78203 (San Antonio, TX) — listings, off-market homes, rentals, and full sales/tax history. Refreshed nightly.

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Active
237
Median
$275K
±0%
Sold Sep
3
-40.0%
Tracked
3.1K
Zoomed out

While you're here, take in the bigger picture — maps below show San Antonio metro, not just 78203. Same company, same dataset, different resolution.

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Over the past 12 months, ZIP 78203 has recorded 40 home sales. In September 2026 there were3 sales (-40.0% vs the prior month).

Key Numbers
Tracked
3.1K
Active
237
Median list
$275K
Sales (12mo)
40
Get this data →

Right now, 237 homes are actively for sale in ZIP 78203. Median list price is $275K at $200/sqft. Hover each hex for micro-neighborhood stats (median price, $/sqft, top property type).

Key Numbers
Tracked
3.1K
Active
237
Median list
$275K
Sales (12mo)
40
Get this data →
Key Numbers
Tracked
3.1K
Active
237
Median list
$275K
Sales (12mo)
40
Get this data →
Key Numbers
Tracked
3.1K
Active
237
Median list
$275K
Sales (12mo)
40
Get this data →
Key Numbers
Tracked
3.1K
Active
237
Median list
$275K
Sales (12mo)
40
Get this data →
Key Numbers
Tracked
3.1K
Active
237
Median list
$275K
Sales (12mo)
40

Inventory breakdown

Distribution of the 237 currently-active listings in ZIP 78203. Full dataset covers 3.1K properties — listings, off-market homes, rentals, and full history.

Active by price range
Under $300K 139 (59.1%)
$300K–$500K 72 (30.6%)
$500K–$750K 18 (7.7%)
$750K–$1M 5 (2.1%)
$1M–$2M 1 (0.4%)
$2M+ 0 (0%)
Active by bedroom count
Studio/1 bd 3
2 bd 35
3 bd 100
4 bd 30
5+ bd 20
Active by property type
Single Family 116 (48.9%)
Lot 53 (22.4%)
Multi Family 36 (15.2%)
Condo 20 (8.4%)
Townhouse 11 (4.6%)
Other 1 (0.4%)
For Developers

Get San Antonio 78203 data in your app

curl
request
GET https://api.straply.com/v1/markets/zip/78203
Authorization: Bearer $STRAPLY_KEY
200 OK response
{
  "zip": "78203",
  "total_tracked": 3056,
  "active": 237,
  "median_list": 274999
}

ZIP 78203 · San Antonio, TX real estate: market summary

As of November 2026, Straply tracks 3,056 homes in ZIP 78203 (San Antonio, TX), with 237 active for sale at a median list price of $274,999 (~$200/sq ft). Notably, it has notably historic housing — 44% of homes predate 1940.

Median list price
$274,999
Median $/sq ft
$200
Active listings
237
Properties tracked
3,056

Frequently asked: ZIP 78203 · San Antonio, TX real estate

What is the median home price in ZIP 78203?

The median list price in ZIP 78203 (San Antonio, TX) is $274,999 (about $200 per square foot), based on 237 active listings tracked by Straply as of November 2026.

What price range are homes in ZIP 78203?

Active listings in ZIP 78203 (San Antonio, TX) concentrate in: 59% under $300k and 31% $300k–$500k.

How many homes are for sale in ZIP 78203?

Straply is tracking 237 active listings in ZIP 78203 (San Antonio, TX) out of 3,056 properties on record as of November 2026.

How old are the homes in ZIP 78203?

Most homes in ZIP 78203 (San Antonio, TX) were built in the 1920s. About 33% were built after 1980, while 44% predate 1940. The newest tracked home dates to 2026.

What types of homes are in ZIP 78203?

ZIP 78203 (San Antonio, TX) is mostly single-family homes (49% of listings). Also common: lots / land 22%, multi-family homes 15%.

How many bedrooms do homes in ZIP 78203 typically have?

The most common size in ZIP 78203 (San Antonio, TX) is 3 bd.

What areas are near ZIP 78203?

Nearby markets Straply also tracks include San Antonio 78202, San Antonio 78210, San Antonio 78205, San Antonio 78215.

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