Department of Equalization | Buffalo County
112 Osman Avenue, Gann Valley, SD 57341
Eligibility
Open to all
Hours
9:00am - 5:00pm (CT), Monday - Friday
605-293-3286
Voice·
Main Phone
Application process
Call for information
Fees
Vary; call for information.
Service area
Buffalo County, SD
Other Information
Age Group
- Adults (25-64)
- Young Adults (18-24)
- Children (0-17)
- Older Adults (65+)
Purpose is to locate, identify, and appraise all taxable property, in accordance with state laws and administrative procedures, while maintaining current information on the ownership and characteristics of property.
Also, this office prepares and certifies the assessment roll and individual property assessments in accordance with state law.
Last Assured
11/21/2025
Providing organization
Buffalo County
Serving the citizens of Buffalo County.