Columbia County, GA Data Centers & Crypto Mining: Data Center Zoning & Siting (2026)

Section 90-101 establishes the D-C data center district for computing and networking facilities, research and development operations, and the substations that power them; lot, structure, and accessory-use standards for the district are set out in section 90-147(h)(6). A data center is defined as a facility housing computing and networking equipment, storage and management systems, and the cooling and power-backup infrastructure needed to keep them running; server rooms accessory to some other primary use do not count. Permitted accessory uses are limited to office and storage space, off-street parking and garages, security facilities, an employee gym or daycare, a staff cafeteria, solar arrays, transit facilities, temporary construction yards, minor utilities under section 90-147(f)(4), and substations.

Noise from the site may not exceed 70 decibels measured at the exterior property line; a rezoning application must include a sound study of ambient levels, and if the threshold is exceeded the developer must add mitigation such as acoustically treated generator and cooling enclosures, with a follow-up sound study required before a certificate of occupancy issues. Backup generators must sit toward the interior of the site, away from any residential or agricultural property, and may run only for emergencies or scheduled testing. Wells are barred outright; a data center must draw water from the county utility. Perimeter fencing tops out at 12 feet with no barbed or razor wire.

The buffer requirement drives the district's footprint: a 250-foot natural buffer runs the full perimeter of the site, narrowing to 50 feet along interstate frontage, but widening to 500 feet anywhere the property adjoins residential, agricultural, or ground-floor residential use. A planted berm that blocks the sight line to the tallest proposed structure can earn a reduction to 250 feet (residential/agricultural) or 125 feet (other frontage), subject to a visual survey the county's planning services director reviews before a land disturbance permit issues; no berm reduction is allowed along the interstate.