Active Listings
470
⇧ 12.2% vs 419 last year
Population: 86,530 · Density: 173.7/mi² · Median household income: $52,432
Typical home value: $246,218 · Homeownership: 37.4%
Data as of January 2026. Source: Realtor.com.
The SAN MARCOS, TX real estate market (78666) currently shows 470 active listings, with 107 pending sales. Homes are averaging 124 days on the market before going under contract.
Inventory has increased compared to last year, with 51 more homes available — giving buyers more choice.
Homes are taking longer to sell, averaging 124 days on market compared to 83 days last year.
The median listing price has fallen 5.2% year-over-year, from $390,401 to $370,000.
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.
| Zip | City / State | Distance | Listings | Market Value | Median $ | Average $ |
|---|---|---|---|---|---|---|
| 78666 | San Marcos, TX 78666 | 0.0 mi | 470 | $222,369,220 | $370,000 | $473,126 |
| 78656 | Maxwell, TX 78656 | 10.3 mi | 104 | $37,177,816 | $283,990 | $357,479 |
| 78622 | Fentress, TX 78622 | 14.1 mi | 2 | $1,549,000 | $774,500 | $774,500 |
| 78676 | Wimberley, TX 78676 | 15.0 mi | 169 | $178,063,301 | $674,900 | $1,053,629 |
| 78623 | Fischer, TX 78623 | 15.3 mi | 41 | $28,719,270 | $514,900 | $700,470 |
| 78133 | Canyon Lake, TX 78133 | 16.0 mi | 425 | $251,401,950 | $459,000 | $591,534 |
| 78661 | Prairie Lea, TX 78661 | 17.8 mi | 2 | $560,000 | $280,000 | $280,000 |
| 78652 | Manchaca, TX 78652 | 18.8 mi | 25 | $14,899,225 | $550,000 | $595,969 |
| 78123 | McQueeney, TX 78123 | 19.8 mi | 14 | $16,672,432 | $787,000 | $1,190,888 |
| 78737 | Austin, TX 78737 | 21.2 mi | 94 | $117,120,992 | $870,950 | $1,245,968 |
| 78747 | Austin, TX 78747 | 22.0 mi | 105 | $42,541,590 | $366,000 | $405,158 |
| 78648 | Luling, TX 78648 | 24.2 mi | 41 | $15,733,258 | $275,000 | $383,738 |
| 78124 | Marion, TX 78124 | 24.7 mi | 124 | $54,606,128 | $334,500 | $440,372 |
As of January 2026, there are 470 active listings in SAN MARCOS, TX (zip code 78666), compared to 419 the prior year.
The median listing price in SAN MARCOS, TX 78666 is $370,000 as of January 2026, a 5.2% decrease from $390,401 the prior year.
Homes in SAN MARCOS, TX 78666 spend an average of 124 days on the market before going under contract, compared to 83 days the prior year.
Based on current inventory and days-on-market data as of January 2026, SAN MARCOS, TX 78666 is currently a Buyer's Market. Inventory has increased compared to last year, with 51 more homes available — giving buyers more choice. Homes are taking longer to sell, averaging 124 days on market compared to 83 days last year.
With SELL123.com's maximum 3% commission, sellers in SAN MARCOS, TX 78666 save an estimated $7,400 compared to a typical 5% commission on the median listing price of $370,000. 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.