
331 Navidad River DR, San Marcos TX 78666
MLS #246414665 · Keller Williams City-View · Christopher Marti
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.
Showing 25 of 405 active homes in 78666.

331 Navidad River DR, San Marcos TX 78666
MLS #246414665 · Keller Williams City-View · Christopher Marti

136 Little Prairie VLY, San Marcos TX 78666
MLS #246398684 · Keller Williams City-View · Christopher Marti

328 Trinity River HOLW, San Marcos TX 78666
MLS #246398685 · Keller Williams City-View · Christopher Marti

253 Elk Ave, San Marcos TX 78666
MLS #246390221 · ERA Experts · Matt Menard

1136 Rusty Blackhaw TRL, San Marcos TX 78666
MLS #246337701 · David Weekley Homes · Jimmy Rado

1116 Rusty Blackhaw TRL, San Marcos TX 78666
MLS #246345297 · David Weekley Homes · Jimmy Rado

104 Ladolia LN, San Marcos TX 78666
MLS #246321370 · Berkshire Hathaway Premier · Kaleb Yates

606 Harmons WAY, San Marcos TX 78666
MLS #246309961 · The Damron Group REALTORS · Jodi Adams

134 E Hillcrest DR, San Marcos TX 78666
MLS #246298287 · Clear River Real Estate Sales · Stephen Jones

816 Teakmill TRL, San Marcos TX 78666
MLS #246299148 · David Weekley Homes · Jimmy Rado

104 Cypress Hills RD, San Marcos TX 78666
MLS #246301380 · eXp Realty LLC · Dayton Schrader

820 Cardenas ST, San Marcos TX 78666
MLS #246223798 · ERA Experts · Matt Menard

246 Trestle Tree, San Marcos TX 78666
MLS #246232485 · Stoker Realty · Scott Stoker

252 Elk Ave, San Marcos TX 78666
MLS #246234123 · ERA Experts · Matt Menard

112 Bouldin Acres PASS, San Marcos TX 78666
MLS #246199329 · DRB Group Realty, LLC · Chaquia Thomas

133 Navidad River DR, San Marcos TX 78666
MLS #241151110 · Keller Williams City-View · Christopher Marti

140 Bouldin Acres PASS, San Marcos TX 78666
MLS #246177434 · DRB Group Realty, LLC · Chaquia Thomas

134 Cogitare LN, San Marcos TX 78666
MLS #246180552 · ERA Experts · Matt Menard

115 Blackfoot Daisy PATH, San Marcos TX 78666
MLS #246185109 · ERA Experts · Matt Menard

141 Cogitare LN, San Marcos TX 78666
MLS #246185121 · ERA Experts · Matt Menard

805 Cardenas ST, San Marcos TX 78666
MLS #246186381 · ERA Experts · Matt Menard

103 Sierra Ridge DR, San Marcos TX 78666
MLS #246144681 · Real Broker, LLC · Natalie Butler-Megerson

229 Majestic Sage TRL, San Marcos TX 78666
MLS #246143162 · Real Broker, LLC · Natalie Butler-Megerson

137 Sowing Oak DR, San Marcos TX 78666
MLS #246092759 · Kuper Sotheby's Int'l Realty N · Amy Knight Black

144 Bouldin Acres PASS, San Marcos TX 78666
MLS #246089620 · DRB Group Realty, LLC · Chaquia Thomas
Market data: Unlock MLS — Central Texas ZIP Code Scorecard, July 2026. Closed-sale figures — distinct from the live-listing numbers above.
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.
Homes in 78666 are served by SanMarcosCONSISD, HaysCONSISD, Marble Falls ISD, Navarro ISD and Wimberley ISD, based on our real listing data.
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.
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.
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.
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.
Tell us what you're looking for in 78666 and get matched with new listings as they hit the market.