Clark County, Idaho: Power, Data Centers and the Local Economy
No data center or power plant project is on record in Clark County, but the national build-out still reaches it through its utility bill, its labor market and the projects next door. Clark County is home to Dubois. Next door, Beaverhead County, Montana, has 400 MW of planned generation. Employers here counted 296 jobs in 2025, down 10.0% from 2019. Its power plants have 3 MW of capacity, 100% of it hydro. PacifiCorp is the largest utility serving Clark County, one of 3 with territory here. Its residential customers paid an average 12.11¢/kWh in 2024, above the 10.00¢ median for Idaho utilities.
Cities and towns in Clark County
Clark County is home to Dubois.
Residents are 2025 Census estimates for the part of each city, town or township inside this county. Census publishes no annual estimate for unincorporated communities.
What changed in Clark County
1st = the most. Ranks cover counties with a value on record.
| Measure | Then | Now | Change | Rank in Idaho |
|---|---|---|---|---|
| Population (2020 → 2025) | 791 | 783 | ▼ 1.0% | 44th of 44 by size |
| Total jobs (2019 → 2025) | 329 | 296 | ▼ 10.0% | 44th of 44 by growth |
| Average annual pay (2019 → 2025) | $41,215 | $67,233 | ▲ 63.1% | — |
| Unemployment rate (2019 → August 2026) | 3.6% | 3.2% | ▼ 0.4pts | — |
| Generating capacity added since 2019 | — | 0 MW | — | |
| Generating capacity retired since 2019 | — | 0 MW | — |
Unemployment was 3.2% in August 2026, against 3.6% in 2019. 783 people live here, down 1.0% since 2020.
Who powers Clark County
Utilities with service territory in Clark County
| Utility | Ownership | Service | Residential customers (systemwide) | Residential price, 2024 | Commercial share of sales |
|---|---|---|---|---|---|
| PacifiCorp | Investor Owned | Bundled | 74,170 | 12.11¢ | 16% |
| Fall River Rural Elec Coop Inc | Cooperative | Bundled | 15,433 | 11.11¢ | 36% |
| Vigilante Electric Coop, Inc | — | — | — | — | — |
Customer counts, prices and sales shares cover each utility's whole system in the state, not only this county. Commercial sales include data centers.
Operating power plants 1
| Technology | Capacity | Share |
|---|---|---|
| Hydro | 3 MW | 100% |
| Largest plants | Owner | Technology | MW | Since |
|---|---|---|---|---|
| Birch Creek Power | Birch Power Co | Hydro | 3 MW | 1986 |
The Clark County labor market
| Industry (2025) | Jobs | Average pay | Concentration vs U.S. |
|---|---|---|---|
| All industries | 296 | $67,233 | 1.00 |
Concentration is the BLS location quotient: 1.0 means the industry holds the same share of local jobs as it does nationally. Industry rows count private employers; cells BLS suppresses are left out.
Data centers and local rules in Clark County
No data center, local measure or delayed project is on record in Clark County. Idaho has 4 local measures on record statewide.
Clark County and its neighbors
Of the 5 counties that border Clark County, Beaverhead County carries the most build-out activity: data centers, planned generation and operating plants combined.
| County | Population | Jobs since 2019 | Operating MW | Planned MW | Data centers | Local measures |
|---|---|---|---|---|---|---|
| Clark County | 783 | ▼ 10.0% | 3 MW | — | — | — |
| Beaverhead County MT | 10,043 | ▲ 3.2% | 80 MW | 400 MW | — | — |
| Butte County | 2,783 | ▲ 23.1% | 4 MW | — | — | — |
| Fremont County | 14,208 | ▲ 21.2% | 24 MW | — | — | — |
| Jefferson County | 35,297 | ▲ 18.6% | 2 MW | — | — | — |
| Lemhi County | 8,474 | ▲ 8.7% | 5 MW | — | — | — |
More of Idaho
Clark County, answered from the record
Who provides electricity in Clark County, Idaho?
3 utilities have service territory in Clark County in the EIA-861 2024 report: PacifiCorp, Fall River Rural Elec Coop Inc, Vigilante Electric Coop, Inc. The largest, PacifiCorp, charged residential customers 12.11¢/kWh on average in 2024.
What power plants are in Clark County?
1 operating plant with 3 MW of capacity. The largest is Birch Creek Power (3 MW, hydro).
Are there data centers in Clark County?
The SAVRN Data Center Map has no data center in Clark County. The nearest activity on record is next door in Beaverhead County.
Is Clark County adding jobs?
Employers counted 296 jobs in 2025 against 329 in 2019 (-10.0%, BLS QCEW).
Does Clark County have a data center moratorium?
No county-level measure is on record for Clark County. Idaho has 4 local measures statewide, listed on the state page.