Median home value in zip code 78666 (San Marcos, TX) is $314,156, down 4.3% year over year. Part of the Austin-Round Rock-Georgetown, TX metropolitan area.

Home Value$314,156

YoY Change

-4.3%

Prices falling — better for buyers.

Affordability

Enter your income for 78666 (San Marcos).

Income (annual)

Down Payment

$62,831 on $314,156

Example: $75,000 household income. Change it above to see your own.

Out of reach37% of income

Need $99,214/yr to afford.

PITI$2,315

P/I37%

Afford$237K

Gap-$77K

P&I $1,589Tax $476Ins $250

6.50% 30yr, 20% down, county tax + TX ins. 28% per HUD.

Home Buying Kit For Dummies (2025)Financing, negotiation, closing

Metro Analysis

78666 is part of the Austin-Round Rock-Georgetown, TX metropolitan area. See full stress scores, crash risk, early warning signals, and 12-month price forecast for the metro.

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