Active Listings
540
⇩ 5.9% vs 574 last year
Data as of July 2026. Source: Realtor.com.
The SAN MARCOS, TX real estate market (78666) currently shows 540 active listings, with 125 pending sales. Homes are averaging 69 days on the market before going under contract.
Inventory has tightened compared to last year, with 34 fewer active listings — creating more competition among buyers.
Homes are taking longer to sell, averaging 69 days on market compared to 68 days last year.
The median listing price has fallen 4.4% year-over-year, from $379,225 to $362,450.
Whether you are buying or selling in SAN MARCOS, TX, SELL123.com can help you save significantly on commission — typically 2% compared to traditional 5% broker fees. Call (240) SELL-123 for a free consultation.
Population: 86,530 · Density: 173.7/mi² · Median household income: $52,432
Typical home value: $246,218 · Homeownership: 37.4%
| Zip | City / State | Distance | Listings | Market Value | Median $ | Average $ |
|---|---|---|---|---|---|---|
| 78666 | San Marcos, TX 78666 | 0.0 mi | 533 | $240,604,195 | $350,000 | $451,415 |
| 78656 | Maxwell, TX 78656 | 10.3 mi | 99 | $33,837,012 | $273,271 | $341,788 |
| 78622 | Fentress, TX 78622 | 14.1 mi | 2 | $1,549,000 | $774,500 | $774,500 |
| 78676 | Wimberley, TX 78676 | 15.0 mi | 181 | $185,527,715 | $655,475 | $1,025,015 |
| 78623 | Fischer, TX 78623 | 15.3 mi | 47 | $32,119,095 | $514,900 | $683,385 |
| 78133 | Canyon Lake, TX 78133 | 16.0 mi | 451 | $277,052,006 | $462,300 | $614,306 |
| 78661 | Prairie Lea, TX 78661 | 17.8 mi | 2 | $560,000 | $280,000 | $280,000 |
| 78652 | Manchaca, TX 78652 | 18.8 mi | 34 | $19,613,580 | $542,500 | $576,870 |
| 78123 | McQueeney, TX 78123 | 19.8 mi | 14 | $16,608,774 | $675,000 | $1,186,341 |
| 78737 | Austin, TX 78737 | 21.2 mi | 104 | $136,423,976 | $941,000 | $1,311,769 |
| 78747 | Austin, TX 78747 | 22.0 mi | 118 | $47,607,572 | $365,000 | $403,454 |
| 78648 | Luling, TX 78648 | 24.2 mi | 40 | $14,959,960 | $269,375 | $373,999 |
| 78124 | Marion, TX 78124 | 24.7 mi | 135 | $56,229,120 | $320,500 | $416,512 |
As of July 2026, there are 540 active listings in SAN MARCOS, TX (zip code 78666), compared to 574 the prior year.
The median listing price in SAN MARCOS, TX 78666 is $362,450 as of July 2026, a 4.4% decrease from $379,225 the prior year.
Homes in SAN MARCOS, TX 78666 spend an average of 69 days on the market before going under contract, compared to 68 days the prior year.
Based on current inventory and days-on-market data as of July 2026, SAN MARCOS, TX 78666 is currently a Balanced Market. Inventory has tightened compared to last year, with 34 fewer active listings — creating more competition among buyers. Homes are taking longer to sell, averaging 69 days on market compared to 68 days last year.
With SELL123.com's maximum 3% commission, sellers in SAN MARCOS, TX 78666 save an estimated $7,249 compared to a typical 5% commission on the median listing price of $362,450. Our fee structure: 1% listing + 2% selling broker — no additional buyer or seller fees. Call (240) SELL-123 or email info@SELL123.com for a free consultation.