Real Estate Data API

78203 San Antonio

141 active listings out of 2.9K 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
141
Median
$335K
±0%
Sales (12mo)
44
Tracked
2.9K
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 44 home sales.

Key Numbers
Tracked
2.9K
Active
141
Median list
$335K
Sales (12mo)
44
Get this data →

Right now, 141 homes are actively for sale in ZIP 78203. Median list price is $335K at $222/sqft. Hover each hex for micro-neighborhood stats (median price, $/sqft, top property type).

Key Numbers
Tracked
2.9K
Active
141
Median list
$335K
Sales (12mo)
44
Get this data →
Key Numbers
Tracked
2.9K
Active
141
Median list
$335K
Sales (12mo)
44
Get this data →
Key Numbers
Tracked
2.9K
Active
141
Median list
$335K
Sales (12mo)
44
Get this data →
Key Numbers
Tracked
2.9K
Active
141
Median list
$335K
Sales (12mo)
44
Get this data →
Key Numbers
Tracked
2.9K
Active
141
Median list
$335K
Sales (12mo)
44

Inventory breakdown

Distribution of the 141 currently-active listings in ZIP 78203. Full dataset covers 2.9K properties — listings, off-market homes, rentals, and full history.

Active by price range
Under $300K 62 (44.3%)
$300K–$500K 52 (37.1%)
$500K–$750K 21 (15%)
$750K–$1M 2 (1.4%)
$1M–$2M 3 (2.1%)
$2M+ 0 (0%)
Active by bedroom count
Studio/1 bd 2
2 bd 29
3 bd 73
4 bd 19
5+ bd 16
Active by property type
Single Family 82 (58.2%)
Multi Family 27 (19.1%)
Condo 17 (12.1%)
Townhouse 13 (9.2%)
Lot 2 (1.4%)
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": 2883,
  "active": 141,
  "median_list": 334500
}
Get an API key Read the docs

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

As of June 2026, Straply tracks 2,883 homes in ZIP 78203 (San Antonio, TX), with 141 active for sale at a median list price of $334,500 (~$222/sq ft). Notably, it has notably historic housing — 45% of homes predate 1940.

Median list price
$334,500
Median $/sq ft
$222
Active listings
141
Properties tracked
2,883

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 $334,500 (about $222 per square foot), based on 141 active listings tracked by Straply as of June 2026.

What price range are homes in ZIP 78203?

Active listings in ZIP 78203 (San Antonio, TX) concentrate in: 44% under $300k and 37% $300k–$500k.

How many homes are for sale in ZIP 78203?

Straply is tracking 141 active listings in ZIP 78203 (San Antonio, TX) out of 2,883 properties on record as of June 2026.

How old are the homes in ZIP 78203?

Most homes in ZIP 78203 (San Antonio, TX) were built in the 1920s. About 32% were built after 1980, while 45% 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 (58% of listings). Also common: multi-family homes 19%, condos 12%.

How many bedrooms do homes in ZIP 78203 typically have?

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

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