Active Listings
540
⇧ 2.3% vs 528 last year
Data as of September 2026. Source: Realtor.com.
The SAN MARCOS, TX real estate market (78666) currently shows 540 active listings, with 111 pending sales. Homes are averaging 88 days on the market before going under contract.
Inventory has increased compared to last year, with 12 more homes available — giving buyers more choice.
Homes are selling faster, averaging 88 days on market compared to 96 days last year.
The median listing price has fallen 4.4% year-over-year, from $370,539 to $354,358.
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 September 2026, there are 540 active listings in SAN MARCOS, TX (zip code 78666), compared to 528 the prior year.
The median listing price in SAN MARCOS, TX 78666 is $354,358 as of September 2026, a 4.4% decrease from $370,539 the prior year.
Homes in SAN MARCOS, TX 78666 spend an average of 88 days on the market before going under contract, compared to 96 days the prior year.
Based on current inventory and days-on-market data as of September 2026, SAN MARCOS, TX 78666 is currently a Balanced Market. Inventory has increased compared to last year, with 12 more homes available — giving buyers more choice. Homes are selling faster, averaging 88 days on market compared to 96 days last year.
With SELL123.com's maximum 3% commission, sellers in SAN MARCOS, TX 78666 save an estimated $7,087 compared to a typical 5% commission on the median listing price of $354,358. 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.