The Assessor's Office is composed of six divisions:

• The Administrative Division of the Assessors Office provides the leadership and strategic vision to support the employees of the department so they can achieve their departmental missions. This includes human resource activity, litigation, procurement, budget and legislative tracking and intergovernmental communication. The newest development in this area is the formation of the internal audit group that provides the County Assessor with an independent consulting and investigative function to examine, evaluate, inspect, critique and report assessor activities.
• The GIS/Mapping Division provides spatial data for the Assessors Office and for other County agencies so they can analyze geographic information.
• The Information Services Division in cooperation with the Office of Enterprise Technology, manager all aspects of the computing environment for the Assessor's office including data center operations, end-user support, web presence and applications/database maintenance.
• The Personal Property Division establishes and maintains accurate data on each account for the tax rolls. This includes mobile home valuations.
• The Real Property/CAMA Division with staff in six locations throughout the County, is responsible for assessing and valuing residential and commercial real estate as well as vacant land within the County. The valuation process includes mass appraisal methodology to create valuation models for various property types. These valuation models are then used to accurately and efficiently determine property values throughout the County. They provide property characteristics and valuation information to external and internal customers, ensuring compliance with Arizona State laws. The Real Property Division also handles administrative appeal regarding assessments.
• The Support Services Division is the public face of the agency and provides important administrative and coordination functions for the county government and citizens. These include records management, processing requests, deeds processing, tax roll corrections and registrations. The public service counter and information resource functions provide reliable data to the public, government agencies and internal customers.