Twin Falls County, Idaho: Power, Data Centers and the Local Economy
Home to Twin Falls, Kimberly and Buhl
Twin Falls County is not a build-out site today. It feels the boom through the grid it shares, the utilities that serve it and the work nearby. Twin Falls County is home to Twin Falls, Kimberly, Buhl and Filer. Construction employs 2,233, up 35.9% since 2019. Next door, Elmore County has 200 MW of planned generation. 286 MW of that came online in 2019 or later, mostly solar. 6 MW has retired here since 2019, including Rock Creek Dairy (other technologies, 3 MW, 2022).
Cities and towns in Twin Falls County
Twin Falls County is home to Twin Falls, Kimberly, Buhl and Filer.
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 Twin Falls County
1st = the most. Ranks cover counties with a value on record.
| Measure | Then | Now | Change | Rank in Idaho |
|---|---|---|---|---|
| Population (2020 → 2025) | 90,365 | 97,539 | ▲ 7.9% | 5th of 44 by size |
| Total jobs (2019 → 2025) | 39,956 | 42,703 | ▲ 6.9% | 32nd of 44 by growth |
| Average annual pay (2019 → 2025) | $36,641 | $50,136 | ▲ 36.8% | — |
| Construction jobs (2019 → 2025) | 1,643 | 2,233 | ▲ 35.9% | 20th of 33 by growth |
| Unemployment rate (2019 → August 2026) | 2.7% | 3.5% | ▲ 0.8pts | — |
| Generating capacity added since 2019 | — | 286 MW | — | |
| Generating capacity retired since 2019 | — | 6 MW | — |
Employers here counted 42,703 jobs in 2025, up 6.9% from 2019. Its power plants have 598 MW of capacity, 37% of it solar, the 5th largest fleet in Idaho. Unemployment was 3.5% in August 2026, against 2.7% in 2019. Idaho Power Co is the largest utility serving Twin Falls County. Its residential customers paid an average 11.76¢/kWh in 2024, above the 10.00¢ median for Idaho utilities. 97,539 people live here, up 7.9% since 2020, 5th of 44 Idaho counties by population.
Who powers Twin Falls County
Net change in operating capacity since 2019: +280 MW. Colors follow the fuel legend above.
Utilities with service territory in Twin Falls County
| Utility | Ownership | Service | Residential customers (systemwide) | Residential price, 2024 | Commercial share of sales |
|---|---|---|---|---|---|
| Idaho Power Co | Investor Owned | Bundled | 525,751 | 11.76¢ | 27% |
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 27
| Technology | Capacity | Share |
|---|---|---|
| Solar | 222 MW | 37% |
| Wind | 194 MW | 32% |
| Hydro | 108 MW | 18% |
| Battery storage | 62 MW | 10% |
| Natural gas | 13 MW | 2% |
| Largest plants | Owner | Technology | MW | Since |
|---|---|---|---|---|
| Jackpot Solar, LLC | Deriva Energy | Solar | 120 MW | 2022 |
| Franklin Solar Hybrid | Franklin Solar Idaho | Solar | 100 MW | 2024 |
| Franklin Battery Storage | Idaho Power Co | Battery storage | 60 MW | 2025 |
| Twin Falls (ID) | Idaho Power Co | Hydro | 53 MW | 1935 |
| High Mesa | High Mesa Energy, LLC | Wind | 40 MW | 2012 |
| Yahoo Creek | Idaho Wind Partners 1 LLC | Wind | 21 MW | 2010 |
Retired since 2019
| Plant | Technology | MW | Year |
|---|---|---|---|
| Rock Creek Dairy | Other technologies | 3 MW | 2022 |
| Cargill Dry Creek Biofactory | Other technologies | 2 MW | 2020 |
The Twin Falls County labor market
| Industry (2025) | Jobs | Average pay | Concentration vs U.S. |
|---|---|---|---|
| All industries | 42,703 | $50,136 | 1.00 |
| Construction | 2,233 | $61,419 | 0.99 |
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 Twin Falls County
No data center, local measure or delayed project is on record in Twin Falls County. Idaho has 4 local measures on record statewide.
Twin Falls County and its neighbors
Of the 6 counties that border Twin Falls County, Elmore 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 |
|---|---|---|---|---|---|---|
| Twin Falls County | 97,539 | ▲ 6.9% | 598 MW | — | — | — |
| Cassia County | 26,397 | ▲ 8.2% | 132 MW | — | — | — |
| Elko County NV | 54,815 | ● 0.0% | 32 MW | — | — | — |
| Elmore County | 29,465 | ▲ 5.2% | 928 MW | 200 MW | — | — |
| Gooding County | 16,446 | ▲ 9.0% | 188 MW | — | — | — |
| Jerome County | 26,362 | ▲ 17.7% | 53 MW | — | — | — |
| Owyhee County | 12,661 | ▲ 8.5% | 269 MW | — | — | — |
More of Idaho
Twin Falls County, answered from the record
Who provides electricity in Twin Falls County, Idaho?
1 utility has service territory in Twin Falls County in the EIA-861 2024 report: Idaho Power Co. The largest, Idaho Power Co, charged residential customers 11.76¢/kWh on average in 2024.
What county is Twin Falls, ID in?
Twin Falls is in Twin Falls County, Idaho. About 56,216 people live there (2025 Census estimate).
What power plants are in Twin Falls County?
27 operating plants with 598 MW of capacity. The largest is Jackpot Solar, LLC (120 MW, solar).
Are there data centers in Twin Falls County?
The SAVRN Data Center Map has no data center in Twin Falls County. The nearest activity on record is next door in Elmore County.
Is Twin Falls County adding jobs?
Employers counted 42,703 jobs in 2025 against 39,956 in 2019 (+6.9%, BLS QCEW). Construction went from 1,643 to 2,233.
Does Twin Falls County have a data center moratorium?
No county-level measure is on record for Twin Falls County. Idaho has 4 local measures statewide, listed on the state page.