Is San Marcos, TX 78666 a buyer’s or seller’s market?

The San Marcos housing market right now

In the three months ending August 31, 2026, 2% of homes in San Marcos, TX 78666 sold above their list price, the typical home went under contract in 92 days and there were 6.7 months of supply. More than six months of supply favors buyers, who usually have more time and more room to negotiate. That’s based on 237 home sales.

Compared with the same period a year earlier, the share selling over asking fell from 6%, homes sold more slowly (90 days then) and the median sale price fell 13% to $298,371. Overall, San Marcos is less competitive than a year ago, which gives buyers more room.

Within Hays County, homes here sell more slowly than in 83% of the county’s ZIP codes, and sell less often over asking than in 83%. On our competition score, San Marcos ranks #816 of 868 TX ZIP codes with enough sales (score 7 out of 100).

Nearby, Austin 78737 (14% sold over asking) and Buda 78610 (8% sold over asking) are even more competitive.