78666 Property Tax Rate

Property owners in ZIP code 78666 (San Marcos, Texas) pay a median of $4,089/year in property taxes on homes valued at $271,900. This translates to an effective tax rate of 1.50%, which is 11% above the Texas state average of 1.35%.

The monthly property tax burden for a median-valued home in 78666 is approximately $341, which factors into escrow payments on mortgages. This ZIP code is located within Hays County. This is $958 more than the Texas average of $3,131/year.

Compared to similar ZIP codes in Texas, 78666 has lower property taxes. ZIP codes with similar effective rates include 76259 (1.50%) and 75102 (1.50%).

In San Marcos, property taxes represent approximately 7.4% of the median household income of $55,478, providing context for the relative tax burden on homeowners in this area.

Texas caps homestead assessed value increases at 10% annually, providing essential protection in Hays County where the effective rate (1.91%) is among the state's highest—potentially saving you $800–$1,500 per year on your $379,300 home. File your Homestead Exemption application with the Hays County Appraisal District by April 30 of the year following purchase to activate this protection immediately. Review your Notice of Appraised Value in May and file a protest by May 15 if the assessed value exceeds 110% of the prior year's appraised amount.