Real Estate Data API

78666 San Marcos

1.5K active listings out of 31K total properties we track in ZIP 78666 (San Marcos, TX) — listings, off-market homes, rentals, and full sales/tax history. Refreshed nightly.

Get this data → API docs
Active
1.5K
Median
$341K
±0%
Sold/mo
1
-96.0%
Tracked
31K
Zoomed out

While you're here, take in the bigger picture — maps below show Texas (statewide), not just 78666. Same company, same dataset, different resolution.

Get this data →
Key Numbers
Tracked
31K
Active
1.5K
Median list
$341K
Sales (12mo)
509
Get this data →
Key Numbers
Tracked
31K
Active
1.5K
Median list
$341K
Sales (12mo)
509
Get this data →
Key Numbers
Tracked
31K
Active
1.5K
Median list
$341K
Sales (12mo)
509
Get this data →
Key Numbers
Tracked
31K
Active
1.5K
Median list
$341K
Sales (12mo)
509
Get this data →
Key Numbers
Tracked
31K
Active
1.5K
Median list
$341K
Sales (12mo)
509

Inventory breakdown

Distribution of the 1.5K currently-active listings in ZIP 78666. Full dataset covers 31K properties — listings, off-market homes, rentals, and full history.

Active by price range
Under $300K 532 (36.3%)
$300K–$500K 636 (43.4%)
$500K–$750K 182 (12.4%)
$750K–$1M 61 (4.2%)
$1M–$2M 28 (1.9%)
$2M+ 26 (1.8%)
Active by bedroom count
Studio/1 bd 24
2 bd 176
3 bd 584
4 bd 537
5+ bd 128
Active by property type
Single Family 1,200 (81.4%)
Condo 125 (8.5%)
Manufactured 70 (4.7%)
Multi Family 48 (3.3%)
Townhouse 20 (1.4%)
Lot 11 (0.7%)
For Developers

Get San Marcos 78666 data in your app

curl
request 
GET https://api.straply.com/v1/markets/zip/78666
Authorization: Bearer $STRAPLY_KEY
200 OK response 
{
  "zip": "78666",
  "total_tracked": 30715,
  "active": 1474,
  "median_list": 340900
}
Get an API key Read the docs

ZIP 78666 · San Marcos, TX real estate: market summary

As of June 2026, Straply tracks 30,715 homes in ZIP 78666 (San Marcos, TX), with 1,474 active for sale at a median list price of $340,900 (~$190/sq ft). Notably, it skews heavily toward new construction — 90% of homes were built after 1980, and 6,263 since 2020.

Median list price
$340,900
Median $/sq ft
$190
Active listings
1,474
Properties tracked
30,715

Frequently asked: ZIP 78666 · San Marcos, TX real estate

What is the median home price in ZIP 78666?

The median list price in ZIP 78666 (San Marcos, TX) is $340,900 (about $190 per square foot), based on 1,474 active listings tracked by Straply as of June 2026.

What price range are homes in ZIP 78666?

Active listings in ZIP 78666 (San Marcos, TX) concentrate in: 43% $300k–$500k and 36% under $300k.

How many homes are for sale in ZIP 78666?

Straply is tracking 1,474 active listings in ZIP 78666 (San Marcos, TX) out of 30,715 properties on record as of June 2026.

How old are the homes in ZIP 78666?

Most homes in ZIP 78666 (San Marcos, TX) were built in the 2020s. About 90% were built after 1980. The newest tracked home dates to 2026.

What types of homes are in ZIP 78666?

ZIP 78666 (San Marcos, TX) is mostly single-family homes (81% of listings). Also common: condos 8%.

How many bedrooms do homes in ZIP 78666 typically have?

The most common size in ZIP 78666 (San Marcos, TX) is 3 bd.

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