Harris County Assessor Office

Find Harris County Texas assessor, assessment, auditor's, and appraiser's offices, revenue commissions, GIS, and tax equalization departments. Assessors provide information on property and land tax assessment, property listings, values, valuations, property search, and records.


Harris County Assessor 701 West Baker Road Baytown TX 77521 713-368-2000


Harris County Assessor 101 Main Street Pasadena TX 77506 713-368-2000

Harris County Assessor 101 Walnut Street Tomball TX 77375 713-368-2000

Harris County Assessor's Office 1001 Preston Street Houston TX 77002 713-274-8002

La Porte City Assessor 604 West Fairmont Parkway La Porte TX 77571 281-471-5020

Montgomery County Assessor 1520 Lake Front Cir Spring TX 77380 281-292-3325

About Assessor Offices

What if I disagree with an assessment?

Most jurisdictions have an appeal process for contesting an assessment. While the specific rules vary from one locality to the next, the process typically involves a hearing before an assessment appeal board. Taxpayers who have concerns about their assessment should visit their local Assessor's Office or its website to learn about the appeal process and what information is required in order to appeal a property tax assessment.

How does my assessment affect the taxes I owe?

The formula used to calculate property taxes varies by location. Your assessment is one part of your property tax calculation. Your property tax payment is calculated by multiplying your property's assessed value, or in some cases half of the assessed value, by the tax rate for your location.

What is the difference between assessed value and market value?

Market value is the likely selling price of a property based on current market conditions. In some jurisdictions, the Assessor calculates an assessed value by applying a factor, for example 70%, to the market value. The assessed value is then used to calculate the taxes for that property.