Real Estate Data API

78666 San Marcos

2.4K active listings out of 32K 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
2.4K
Median
$345K
±0%
Sold Sep
26
±0%
Tracked
32K
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
32K
Active
2.4K
Median list
$345K
Sales (12mo)
426
Get this data →
Key Numbers
Tracked
32K
Active
2.4K
Median list
$345K
Sales (12mo)
426
Get this data →
Key Numbers
Tracked
32K
Active
2.4K
Median list
$345K
Sales (12mo)
426
Get this data →
Key Numbers
Tracked
32K
Active
2.4K
Median list
$345K
Sales (12mo)
426
Get this data →
Key Numbers
Tracked
32K
Active
2.4K
Median list
$345K
Sales (12mo)
426

Inventory breakdown

Distribution of the 2.4K currently-active listings in ZIP 78666. Full dataset covers 32K properties — listings, off-market homes, rentals, and full history.

Active by price range
Under $300K 855 (35.8%)
$300K–$500K 1,009 (42.3%)
$500K–$750K 321 (13.5%)
$750K–$1M 99 (4.1%)
$1M–$2M 57 (2.4%)
$2M+ 45 (1.9%)
Active by bedroom count
Studio/1 bd 96
2 bd 313
3 bd 901
4 bd 841
5+ bd 169
Active by property type
Single Family 1,925 (80.2%)
Condo 168 (7%)
Lot 100 (4.2%)
Manufactured 69 (2.9%)
Multi Family 61 (2.5%)
Other 44 (1.8%)
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": 32359,
  "active": 2401,
  "median_list": 344994
}
Get an API key Read the docs

Nearby ZIP codes

Other Texas ZIPs within a short drive of 78666.

78655
→
Martindale 78655
6.3 mi away 84 active
78656
→
Maxwell 78656
7.2 mi away 527 active
78640
→
Kyle 78640
10.3 mi away 3.7K active
78622
→
Fentress 78622
12.2 mi away 9 active
78661
→
Prairie Lea 78661
14.1 mi away 3 active
78676
→
Wimberley 78676
14.7 mi away 953 active
78130
→
New Braunfels 78130
15.4 mi away 3.3K active
78610
→
Buda 78610
15.6 mi away 2.5K active
Looking for more? Explore San Marcos

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

As of November 2026, Straply tracks 32,359 homes in ZIP 78666 (San Marcos, TX), with 2,401 active for sale at a median list price of $344,994 (~$189/sq ft). Notably, it skews heavily toward new construction — 90% of homes were built after 1980, and 7,605 since 2020.

Median list price
$344,994
Median $/sq ft
$189
Active listings
2,401
Properties tracked
32,359

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 $344,994 (about $189 per square foot), based on 2,401 active listings tracked by Straply as of November 2026.

What price range are homes in ZIP 78666?

Active listings in ZIP 78666 (San Marcos, TX) concentrate in: 42% $300k–$500k and 36% under $300k.

How many homes are for sale in ZIP 78666?

Straply is tracking 2,401 active listings in ZIP 78666 (San Marcos, TX) out of 32,359 properties on record as of November 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 (80% of listings). Also common: condos 7%.

How many bedrooms do homes in ZIP 78666 typically have?

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

What areas are near ZIP 78666?

Nearby markets Straply also tracks include Martindale 78655, Maxwell 78656, Kyle 78640, Fentress 78622.

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