Siskiyou County, California: Power, Data Centers and the Local Economy
Home to Yreka, Mount Shasta and Weed
No data center or power plant project is on record in Siskiyou County, but the national build-out still reaches it through its utility bill, its labor market and the projects next door. Siskiyou County is home to Yreka, Mount Shasta, Weed and Dunsmuir. Construction employs 570, up 24.5% since 2019. Next door, Jackson County, Oregon, has 3 data centers. 65 MW has retired here since 2019, including Copco 2 (hydro, 27 MW, 2023). Its power plants have 20 MW of capacity, 65% of it other technologies.
Cities and towns in Siskiyou County
Siskiyou County is home to Yreka, Mount Shasta, Weed and Dunsmuir.
Unincorporated communities (governed by the county): Carrick, Edgewood, Gazelle, Greenview, Grenada, Happy Camp, Hornbrook, Lake Shastina, Macdoel, McCloud, Mount Hebron, Tennant.
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 Siskiyou County
1st = the most. Ranks cover counties with a value on record.
| Measure | Then | Now | Change | Rank in California |
|---|---|---|---|---|
| Population (2020 → 2025) | 43,983 | 42,013 | ▼ 4.5% | 45th of 58 by size |
| Total jobs (2019 → 2025) | 13,916 | 13,862 | ▼ 0.4% | 45th of 58 by growth |
| Average annual pay (2019 → 2025) | $41,932 | $56,171 | ▲ 34.0% | — |
| Construction jobs (2019 → 2025) | 458 | 570 | ▲ 24.5% | 8th of 51 by growth |
| Unemployment rate (2019 → August 2026) | 6.9% | 7.3% | ▲ 0.4pts | — |
| Generating capacity added since 2019 | — | 0 MW | — | |
| Generating capacity retired since 2019 | — | 65 MW | — |
Pacific Gas & Electric Co. is the largest utility serving Siskiyou County, one of 4 with territory here. Its residential customers paid an average 39.62¢/kWh in 2024, above the 20.66¢ median for California utilities. Unemployment was 7.3% in August 2026, against 6.9% in 2019. Employers here counted 13,862 jobs in 2025, down 0.4% from 2019. 42,013 people live here, down 4.5% since 2020.
Who powers Siskiyou County
Net change in operating capacity since 2019: −65 MW. Colors follow the fuel legend above.
Utilities with service territory in Siskiyou County
| Utility | Ownership | Service | Residential customers (systemwide) | Residential price, 2024 | Commercial share of sales |
|---|---|---|---|---|---|
| Pacific Gas & Electric Co. | Investor Owned | Bundled | 5,047,461 | 39.62¢ | 30% |
| PacifiCorp | Investor Owned | Bundled | 36,273 | 20.64¢ | 32% |
| Bonneville Power Administration | — | — | — | — | — |
| WAPA-- Western Area Power Administration | Federal | Bundled | — | — | 48% |
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 3
| Technology | Capacity | Share |
|---|---|---|
| Other technologies | 13 MW | 65% |
| Hydro | 7 MW | 35% |
| Largest plants | Owner | Technology | MW | Since |
|---|---|---|---|---|
| Roseburg Forest Products Biomass | Roseburg Forest Products | Other technologies | 13 MW | 2010 |
| Box Canyon Dam | Siskiyou Power Authority | Hydro | 5 MW | 1986 |
| Fall Creek | PacifiCorp | Hydro | 2 MW | 1903 |
Retired since 2019
| Plant | Technology | MW | Year |
|---|---|---|---|
| Copco 2 | Hydro | 27 MW | 2023 |
| Copco 1 | Hydro | 20 MW | 2024 |
| Iron Gate | Hydro | 18 MW | 2024 |
The Siskiyou County labor market
| Industry (2025) | Jobs | Average pay | Concentration vs U.S. |
|---|---|---|---|
| All industries | 13,862 | $56,171 | 1.00 |
| Construction | 570 | $66,098 | 0.78 |
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 Siskiyou County
No data center, local measure or delayed project is on record in Siskiyou County. California has 48 local measures on record statewide, and 1 neighboring county has one: Humboldt County.
Siskiyou County and its neighbors
Of the 8 counties that border Siskiyou County, Shasta 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 |
|---|---|---|---|---|---|---|
| Siskiyou County | 42,013 | ▼ 0.4% | 20 MW | — | — | — |
| Del Norte County | 26,410 | ▲ 2.2% | — | — | — | — |
| Humboldt County | 131,647 | ▲ 2.5% | 234 MW | — | — | 2 |
| Jackson County OR | 221,795 | ▲ 1.8% | 185 MW | — | 3 | — |
| Josephine County OR | 87,867 | ▲ 7.4% | 5 MW | — | — | — |
| Klamath County OR | 70,274 | ▲ 2.7% | 762 MW | 2 MW | — | — |
| Modoc County | 8,426 | ▲ 3.7% | — | — | — | — |
| Shasta County | 181,648 | ▲ 6.1% | 2,427 MW | — | 1 | — |
| Trinity County | 15,720 | ▲ 4.3% | 153 MW | — | — | — |
More of California
Siskiyou County, answered from the record
Who provides electricity in Siskiyou County, California?
4 utilities have service territory in Siskiyou County in the EIA-861 2024 report: Pacific Gas & Electric Co., PacifiCorp, Bonneville Power Administration, WAPA-- Western Area Power Administration. The largest, Pacific Gas & Electric Co., charged residential customers 39.62¢/kWh on average in 2024.
What power plants are in Siskiyou County?
3 operating plants with 20 MW of capacity. The largest is Roseburg Forest Products Biomass (13 MW, other technologies).
Are there data centers in Siskiyou County?
The SAVRN Data Center Map has no data center in Siskiyou County. The nearest activity on record is next door in Jackson County.
Is Siskiyou County adding jobs?
Employers counted 13,862 jobs in 2025 against 13,916 in 2019 (-0.4%, BLS QCEW). Construction went from 458 to 570.
Does Siskiyou County have a data center moratorium?
No county-level measure is on record for Siskiyou County. California has 48 local measures statewide, listed on the state page.