Cavalier County, North Dakota: Power, Data Centers and the Local Economy
Home to Langdon
No data center or power plant project is on record in Cavalier County, but the national build-out still reaches it through its utility bill, its labor market and the projects next door. Cavalier County is home to Langdon. Employers here counted 1,264 jobs in 2025, down 6.1% from 2019. Unemployment was 2.0% in August 2026, against 2.8% in 2019. Its power plants have 200 MW of capacity, 100% of it wind. Otter Tail Power Co is the largest utility serving Cavalier County, one of 3 with territory here. Its residential customers paid an average 11.38¢/kWh in 2024.
Cities and towns in Cavalier County
Cavalier County is home to Langdon.
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 Cavalier County
1st = the most. Ranks cover counties with a value on record.
| Measure | Then | Now | Change | Rank in North Dakota |
|---|---|---|---|---|
| Population (2020 → 2025) | 3,697 | 3,497 | ▼ 5.4% | 31st of 53 by size |
| Total jobs (2019 → 2025) | 1,346 | 1,264 | ▼ 6.1% | 40th of 53 by growth |
| Average annual pay (2019 → 2025) | $42,716 | $57,194 | ▲ 33.9% | — |
| Unemployment rate (2019 → August 2026) | 2.8% | 2.0% | ▼ 0.8pts | — |
| Generating capacity added since 2019 | — | 0 MW | — | |
| Generating capacity retired since 2019 | — | 0 MW | — |
3,497 people live here, down 5.4% since 2020.
Who powers Cavalier County
Utilities with service territory in Cavalier County
| Utility | Ownership | Service | Residential customers (systemwide) | Residential price, 2024 | Commercial share of sales |
|---|---|---|---|---|---|
| Otter Tail Power Co | Investor Owned | Bundled | 45,467 | 11.38¢ | 77% |
| Nodak Electric Coop Inc | Cooperative | Bundled | 20,803 | 12.08¢ | 42% |
| Cavalier Rural Elec 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 3
| Technology | Capacity | Share |
|---|---|---|
| Wind | 200 MW | 100% |
| Largest plants | Owner | Technology | MW | Since |
|---|---|---|---|---|
| Langdon Renewables, LLC | FPL Energy Langdon Wind LLC | Wind | 118 MW | 2007 |
| Langdon Wind Energy Center | Otter Tail Power Co | Wind | 40 MW | 2007 |
| Langdon Wind II LLC | FPL Energy Langdon Wind LLC | Wind | 40 MW | 2008 |
The Cavalier County labor market
| Industry (2025) | Jobs | Average pay | Concentration vs U.S. |
|---|---|---|---|
| All industries | 1,264 | $57,194 | 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 Cavalier County
No data center, local measure or delayed project is on record in Cavalier County. North Dakota has 5 local measures on record statewide.
Cavalier County and its neighbors
Of the 4 counties that border Cavalier County, Pembina 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 |
|---|---|---|---|---|---|---|
| Cavalier County | 3,497 | ▼ 6.1% | 200 MW | — | — | — |
| Pembina County | 6,568 | ▼ 4.7% | 6 MW | — | — | — |
| Ramsey County | 11,530 | ▼ 2.5% | — | — | — | — |
| Towner County | 2,040 | ▼ 10.3% | — | — | — | — |
| Walsh County | 10,179 | ▼ 2.9% | 4 MW | — | — | — |
More of North Dakota
Cavalier County, answered from the record
Who provides electricity in Cavalier County, North Dakota?
3 utilities have service territory in Cavalier County in the EIA-861 2024 report: Otter Tail Power Co, Nodak Electric Coop Inc, Cavalier Rural Elec Coop, Inc. The largest, Otter Tail Power Co, charged residential customers 11.38¢/kWh on average in 2024.
What power plants are in Cavalier County?
3 operating plants with 200 MW of capacity. The largest is Langdon Renewables, LLC (118 MW, wind).
Are there data centers in Cavalier County?
The SAVRN Data Center Map has no data center in Cavalier County.
Is Cavalier County adding jobs?
Employers counted 1,264 jobs in 2025 against 1,346 in 2019 (-6.1%, BLS QCEW).
Does Cavalier County have a data center moratorium?
No county-level measure is on record for Cavalier County. North Dakota has 5 local measures statewide, listed on the state page.