Datacenter Sites in Custer County, Idaho
Custer County has 29 scored datacenter candidate sites averaging 47.4/100 DC Readiness, with a catalogued aggregate of 3,700 MW. FEMA rates local natural-hazard risk as "Relatively Low". The county has a datacenter tax incentive on record.
29
Candidate sites
47.4/100
Avg DC Readiness
3,700 MW
Catalogued capacity
theoretical aggregate
Relatively Low
Hazard rating
Site-selection context for Custer County
Yesproperty_tax_exemption
Datacenter tax incentive
8.29¢/kWh
Commercial electricity
6.70¢/kWh
Industrial electricity
3
Fiber providers
Medium-High
Water stress
$3,588
Land price / acre
500
Cooling degree days
6,400
Heating degree days
44°F
Mean annual temp
Incentive detail: Personal property tax exemption on computer equipment.
By site type
Top datacenter sites in Custer County
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| ROUND VALLEY | Substation-Adjacent | 230 kV | 300 MW | 1.1 yrs | 68.0 |
| SPAR CANYON | Substation-Adjacent | 230 kV | 300 MW | 2.0 yrs | 63.7 |
| Greenfield (SPAR CANYON - ROUND VALLEY) | Greenfield | 230 kV | 300 MW | 1.1 yrs | 62.2 |
| UNKNOWN201563 | Substation-Adjacent | 230 kV | 300 MW | 2.0 yrs | 62.0 |
| Greenfield (TAP207694 - TAP207695) | Greenfield | 115 kV | 100 MW | 1.1 yrs | 58.0 |
| Greenfield (LOST RIVER - SPAR CANYON) | Greenfield | 230 kV | 300 MW | 2.0 yrs | 58.0 |
| Greenfield (TAP207694 - TAP207695) | Greenfield | 115 kV | 100 MW | 1.1 yrs | 57.9 |
| Greenfield (LOST RIVER - SPAR CANYON) | Greenfield | 230 kV | 300 MW | 2.0 yrs | 57.9 |
| Greenfield (TAP207694 - TAP207695) | Greenfield | 115 kV | 100 MW | 1.1 yrs | 57.5 |
| Greenfield (TAP207694 - TAP207695) | Greenfield | 115 kV | 100 MW | 1.1 yrs | 57.3 |
| Greenfield (SPAR CANYON - UNKNOWN201563) | Greenfield | 230 kV | 300 MW | 2.0 yrs | 57.2 |
| Greenfield (LOST RIVER - SPAR CANYON) | Greenfield | 230 kV | 300 MW | 2.0 yrs | 57.2 |
| Greenfield (SPAR CANYON - UNKNOWN201563) | Greenfield | 230 kV | 300 MW | 2.0 yrs | 57.1 |
| Greenfield (SPAR CANYON - UNKNOWN201563) | Greenfield | 230 kV | 300 MW | 2.0 yrs | 55.9 |
| Greenfield (LOST RIVER - SPAR CANYON) | Greenfield | 230 kV | 300 MW | 2.0 yrs | 55.5 |
| Guffy | Industrial | — | — | — | 36.5 |
| Mine Site | Former Mine | — | — | — | 35.9 |
| SAWTOOTH NATIONAL FISH HATCHERY | Federal Excess | — | — | — | 35.9 |
| Mine Site | Former Mine | — | — | — | 35.6 |
| Mine Site | Former Mine | — | — | — | 34.9 |
| Mine Site | Former Mine | — | — | — | 34.9 |
| Mine Site | Former Mine | — | — | — | 34.6 |
| Bayhorse Mining District - South Parcel | Industrial | — | — | — | 34.6 |
| Mine Site | Former Mine | — | — | — | 34.6 |
| Bayhorse Mining District - Beardsley Mine | Industrial | — | — | — | 34.4 |
Custer County datacenter FAQ
- How many datacenter sites are in Custer County?
- 29 scored datacenter candidate sites, averaging 47.4/100 DC Readiness.
- Does Custer County offer datacenter tax incentives?
- Personal property tax exemption on computer equipment.
- What is the natural-hazard risk in Custer County?
- FEMA's National Risk Index rates Custer County as "Relatively Low" (score 15).
- What are industrial electricity rates in Custer County?
- Average industrial electricity is 6.70¢/kWh and commercial is 8.29¢/kWh in Custer County.
Dataset updated . Screening estimates derived from public data sources.
Go deeper than the public screen
This page shows a public slice of the GridCensus dataset for Custer County, Idaho. Pro and Enterprise plans unlock the full 164,098-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.