78666 Homes for Sale — San Marcos, TX

646
Active listings
$332,544.5
Median list price
$114,999–$4,250,000
Price range

78666 is a ZIP code in San Marcos, Texas. This page shows the current homes for sale in 78666 — 646 active listings right now, priced from $114,999–$4,250,000 with a median list price of $332,544.5 — built from live MLS data rather than a dated report, alongside the neighborhoods that make up the ZIP. Through HomeLocating, you can turn these numbers into a plan for a specific home in 78666 or a nearby ZIP in San Marcos.

Approximate 78666 boundary (U.S. Census ZCTA) — not an exact or official ZIP line.

Homes for Sale in 78666

Showing 25 of 405 active homes in 78666.

331 Navidad River DR
Motivated SellerEstimated by HomeLocatingNew Construction
$226,999

331 Navidad River DR, San Marcos TX 78666

MLS #246414665 · Keller Williams City-View · Christopher Marti

4 bd·2 ba·1,859 sqft
136 Little Prairie VLY
Motivated SellerEstimated by HomeLocatingNew Construction
$305,999

136 Little Prairie VLY, San Marcos TX 78666

MLS #246398684 · Keller Williams City-View · Christopher Marti

4 bd·3 ba·2,669 sqft
328 Trinity River HOLW
Motivated SellerEstimated by HomeLocatingNew Construction
$223,999

328 Trinity River HOLW, San Marcos TX 78666

MLS #246398685 · Keller Williams City-View · Christopher Marti

3 bd·2 ba·1,484 sqft
253 Elk Ave
New Construction
$281,464

253 Elk Ave, San Marcos TX 78666

MLS #246390221 · ERA Experts · Matt Menard

3 bd·2 ba·1,454 sqft
1136 Rusty Blackhaw TRL
Price CutEstimated by HomeLocatingNew Construction
$524,900

1136 Rusty Blackhaw TRL, San Marcos TX 78666

MLS #246337701 · David Weekley Homes · Jimmy Rado

4 bd·3 ba·2,751 sqft
1116 Rusty Blackhaw TRL
Price CutEstimated by HomeLocatingNew Construction
$549,900

1116 Rusty Blackhaw TRL, San Marcos TX 78666

MLS #246345297 · David Weekley Homes · Jimmy Rado

4 bd·3 ba·2,802 sqft
104 Ladolia LN
Price CutEstimated by HomeLocating
$310,000

104 Ladolia LN, San Marcos TX 78666

MLS #246321370 · Berkshire Hathaway Premier · Kaleb Yates

3 bd·2 ba·1,821 sqft
606 Harmons WAY
$249,000

606 Harmons WAY, San Marcos TX 78666

MLS #246309961 · The Damron Group REALTORS · Jodi Adams

3 bd·2 ba·1,874 sqft
134 E Hillcrest DR
$335,000

134 E Hillcrest DR, San Marcos TX 78666

MLS #246298287 · Clear River Real Estate Sales · Stephen Jones

3 bd·2 ba·1,526 sqft
816 Teakmill TRL
Price CutEstimated by HomeLocatingNew Construction
$499,900

816 Teakmill TRL, San Marcos TX 78666

MLS #246299148 · David Weekley Homes · Jimmy Rado

3 bd·2 ba·2,370 sqft
104 Cypress Hills RD
Motivated SellerEstimated by HomeLocating
$305,000

104 Cypress Hills RD, San Marcos TX 78666

MLS #246301380 · eXp Realty LLC · Dayton Schrader

4 bd·3 ba·1,963 sqft
820 Cardenas ST
Price CutEstimated by HomeLocatingNew Construction
$268,310

820 Cardenas ST, San Marcos TX 78666

MLS #246223798 · ERA Experts · Matt Menard

3 bd·2 ba·1,644 sqft
246 Trestle Tree
Motivated SellerEstimated by HomeLocating
$150,000

246 Trestle Tree, San Marcos TX 78666

MLS #246232485 · Stoker Realty · Scott Stoker

2 bd·2.5 ba·1,266 sqft
252 Elk Ave
New Construction
$301,153

252 Elk Ave, San Marcos TX 78666

MLS #246234123 · ERA Experts · Matt Menard

3 bd·2 ba·1,734 sqft
112 Bouldin Acres PASS
Price CutEstimated by HomeLocating
$349,990

112 Bouldin Acres PASS, San Marcos TX 78666

MLS #246199329 · DRB Group Realty, LLC · Chaquia Thomas

5 bd·3 ba·2,009 sqft
133 Navidad River DR
Motivated SellerEstimated by HomeLocatingNew Construction
$238,999

133 Navidad River DR, San Marcos TX 78666

MLS #241151110 · Keller Williams City-View · Christopher Marti

4 bd·2 ba·2,193 sqft
140 Bouldin Acres PASS
Price CutEstimated by HomeLocating
$319,990

140 Bouldin Acres PASS, San Marcos TX 78666

MLS #246177434 · DRB Group Realty, LLC · Chaquia Thomas

3 bd·2 ba·1,690 sqft
134 Cogitare LN
New Construction
$365,986

134 Cogitare LN, San Marcos TX 78666

MLS #246180552 · ERA Experts · Matt Menard

4 bd·2.5 ba·2,285 sqft
115 Blackfoot Daisy PATH
New Construction
$374,708

115 Blackfoot Daisy PATH, San Marcos TX 78666

MLS #246185109 · ERA Experts · Matt Menard

4 bd·2.5 ba·2,408 sqft
141 Cogitare LN
New Construction
$348,151

141 Cogitare LN, San Marcos TX 78666

MLS #246185121 · ERA Experts · Matt Menard

4 bd·2 ba·1,977 sqft
805 Cardenas ST
Price CutEstimated by HomeLocatingNew Construction
$274,370

805 Cardenas ST, San Marcos TX 78666

MLS #246186381 · ERA Experts · Matt Menard

3 bd·2 ba·1,726 sqft
103 Sierra Ridge DR
Price CutEstimated by HomeLocating
$539,000

103 Sierra Ridge DR, San Marcos TX 78666

MLS #246144681 · Real Broker, LLC · Natalie Butler-Megerson

5 bd·3 ba·2,892 sqft
229 Majestic Sage TRL
Price CutEstimated by HomeLocating
$564,900

229 Majestic Sage TRL, San Marcos TX 78666

MLS #246143162 · Real Broker, LLC · Natalie Butler-Megerson

4 bd·3 ba·3,258 sqft
137 Sowing Oak DR
$1,099,353

137 Sowing Oak DR, San Marcos TX 78666

MLS #246092759 · Kuper Sotheby's Int'l Realty N · Amy Knight Black

2 bd·2.5 ba·2,330 sqft
144 Bouldin Acres PASS
Price CutEstimated by HomeLocating
$339,990

144 Bouldin Acres PASS, San Marcos TX 78666

MLS #246089620 · DRB Group Realty, LLC · Chaquia Thomas

4 bd·2 ba·2,009 sqft

78666 Market Trends — July 2026

Market data: Unlock MLS — Central Texas ZIP Code Scorecard, July 2026. Closed-sale figures — distinct from the live-listing numbers above.

Median sale price
$277,990-15% YoY
Sales — July 2026
87-4.4% YoY
Dominant price band
$250,000-$299,999
21 sales · avg 75 days on market
Share of sales $500K+
12.6%

Communities & Neighborhoods in 78666

78666 sits within San Marcos, Texas. Based on our real listing history, its neighborhoods and communities include Kissing Tree, River Bridge Ranch, La Cima, Blanco Vista, Cottonwood Creek, La Cima Ph 3 Sec A. The mix of neighborhoods inside a single ZIP can vary a lot in price and home type, so the median and range above are a starting point — the individual listings show what's actually available today.

  • Kissing Tree
  • River Bridge Ranch
  • La Cima
  • Blanco Vista
  • Cottonwood Creek
  • La Cima Ph 3 Sec A
  • WHISPER SOUTH
  • Whisper South
  • Thunder Rock
  • Alto
  • Castle Forest
  • Village At Springtown Condos
  • Vantage
  • Whisper Mixed Use Sub Ph 1A
  • High Branch
  • Trace
  • La Cima Ph 2 Sec A
  • Westover
  • Valley View Sub
  • La Cima Ph 2 Sec B
  • Bent Tree Condos
  • Sky Ridge
  • Millbrook Park Ph 2
  • Trace Sub Sec A Pa 1A Ph A-2
  • Summer Mountain Ranch Sec 2
  • Hills Of Hays Ph 1
  • La Cima Ph I Sec 1
  • Pecan Creek Condo
  • El Camino Real Ph 1 Sec 2
  • WHISPER

Schools

Homes in 78666 are served by SanMarcosCONSISD, HaysCONSISD, Marble Falls ISD, Navarro ISD and Wimberley ISD, based on our real listing data.

Frequently Asked Questions

What's the median home price in 78666?

The current median list price in 78666 is $332,544.5, drawn from live MLS listings — half the active homes are priced above it and half below. It reflects what's on the market now; the figure updates as listings change.

How many homes are for sale in 78666?

There are currently 646 active homes for sale in 78666, from live MLS data — priced from $114,999–$4,250,000. Inventory updates as new homes list and others go under contract.

Is 78666 a good market right now?

That depends on the signals rather than a single label: 646 homes are currently for sale in 78666, and 49% of them have cut their price — a higher price-reduction share generally points to more buyer-friendly conditions, while a lower one points to a tighter market. This page shows the current indicators so you can judge for yourself; it isn't a forecast.

What neighborhoods are in 78666?

Based on our real listing history, 78666's neighborhoods include Kissing Tree, River Bridge Ranch, La Cima, Blanco Vista, Cottonwood Creek, La Cima Ph 3 Sec A. Neighborhood boundaries can extend across ZIP lines, so this reflects what's actually listed here rather than an exhaustive map.

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