Ada County Seal
Ada County Assessor's Office
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Contact Our Office

Located in the Complex East of the Courthouse building:

190 E Front Street, Suite 107

Boise, ID  83702

Main Phone:  (208) 287-7200

Fax:  (208) 287-7209

Building Doors With Ada County Sign Above It

Departments

Please select from the links below to email
your question to the appropriate department.

Department Phone Email Address
Ownership (208) 287-7200 [email protected]
Tax Payments & Billing (208) 287-6800 [email protected]
Homestead Property Tax Exemption (208) 287-7200 [email protected]
Motor Vehicles (208) 577-3135 [email protected]
Deeds, Legal Descriptions, Surveys and Mapping (208) 287-7262 [email protected]
Circuit Breaker – Property Tax Reduction Program (208) 287-7200 [email protected]
Specific Questions Related to Your Parcel (208) 287-7200 [email protected]
General Questions (208) 287-7200 [email protected]
G.I.S / Online Property Information Systems (208) 287-7262 [email protected]
Business Personal Property (208) 287-7247 [email protected]
Feedback – Send an Electronic Comment Card
Contact the Assessor (208) 287-7200 [email protected]

Department Phone and Fax Numbers

Department Phone Fax
 Administration (208) 287-7200 (208) 287-7209
 Appraisal (208) 287-7200 (208) 287-7229
 Land Records (208) 287-7262 (208) 287-7219
Motor Vehicles (208) 577-3135