Appraisal IQ should be Your Williamson County Property Appraiser (updated March 29th, 2011) Please note: we are NOT the Williamson County Appraisal District (WCAD)! We are a locally-owned, full-service real estate appraisal company that appraises property in Central Texas, including property in Williamson County. We use the Mercury Network to stay compliant with the many [...]