Marshall County, Minnesota: Power, Data Centers and the Local Economy
Home to Warren
Marshall 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. Marshall County is home to Warren, Stephen and Argyle. Construction employs 176, up 28.5% since 2019, and construction is 1.4 times as concentrated here as in the U.S. economy. Next door, Grand Forks County, North Dakota, has 3 data centers. Employers here counted 2,430 jobs in 2025, up 8.7% from 2019 (the 8th fastest growth of 87 Minnesota counties). Otter Tail Power Co is the largest utility serving Marshall County, one of 8 with territory here. Its residential customers paid an average 11.33¢/kWh in 2024, below the 14.36¢ median for Minnesota utilities.
Cities and towns in Marshall County
Marshall County is home to Warren, Stephen and Argyle.
And 16 smaller places.
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 Marshall County
1st = the most. Ranks cover counties with a value on record.
| Measure | Then | Now | Change | Rank in Minnesota |
|---|---|---|---|---|
| Population (2020 → 2025) | 9,025 | 8,798 | ▼ 2.5% | 73rd of 87 by size |
| Total jobs (2019 → 2025) | 2,235 | 2,430 | ▲ 8.7% | 8th of 87 by growth |
| Average annual pay (2019 → 2025) | $44,398 | $57,774 | ▲ 30.1% | — |
| Construction jobs (2019 → 2025) | 137 | 176 | ▲ 28.5% | 12th of 72 by growth |
| Unemployment rate (2019 → August 2026) | 6.4% | 6.0% | ▼ 0.4pts | — |
Unemployment was 6.0% in August 2026, against 6.4% in 2019. 8,798 people live here, down 2.5% since 2020.
Who powers Marshall County
Utilities with service territory in Marshall County
| Utility | Ownership | Service | Residential customers (systemwide) | Residential price, 2024 | Commercial share of sales |
|---|---|---|---|---|---|
| Otter Tail Power Co | Investor Owned | Bundled | 50,118 | 11.33¢ | 37% |
| City of Alvarado - (MN) | — | — | — | — | — |
| City of Newfolden - (MN) | — | — | — | — | — |
| P K M Electric Coop, Inc | — | — | — | — | — |
| Roseau Electric Coop, Inc | — | — | — | — | — |
| City of Stephen - (MN) | — | — | — | — | — |
| City of Warren - (MN) | — | — | — | — | — |
| Red Lake 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.
No operating power plant is located in Marshall County in the EIA-860M inventory. Its power comes over the grid from plants elsewhere.
The Marshall County labor market
| Industry (2025) | Jobs | Average pay | Concentration vs U.S. |
|---|---|---|---|
| All industries | 2,430 | $57,774 | 1.00 |
| Construction | 176 | $88,814 | 1.37 |
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 Marshall County
No data center, local measure or delayed project is on record in Marshall County. Minnesota has 25 local measures on record statewide.
Marshall County and its neighbors
Of the 8 counties that border Marshall County, Grand Forks 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 |
|---|---|---|---|---|---|---|
| Marshall County | 8,798 | ▲ 8.7% | — | — | — | — |
| Beltrami County | 47,055 | ▲ 2.5% | 51 MW | 50 MW | — | — |
| Grand Forks County ND | 74,501 | ▲ 3.1% | — | — | 3 | — |
| Kittson County | 4,031 | ▼ 1.1% | — | — | — | — |
| Pembina County ND | 6,568 | ▼ 4.7% | 6 MW | — | — | — |
| Pennington County | 13,686 | ▼ 7.9% | 6 MW | — | — | — |
| Polk County | 30,545 | ▼ 1.2% | 14 MW | — | 1 | — |
| Roseau County | 15,246 | ▼ 1.8% | 11 MW | — | — | — |
| Walsh County ND | 10,179 | ▼ 2.9% | 4 MW | — | — | — |
More of Minnesota
Marshall County, answered from the record
Who provides electricity in Marshall County, Minnesota?
8 utilities have service territory in Marshall County in the EIA-861 2024 report: Otter Tail Power Co, City of Alvarado - (MN), City of Newfolden - (MN), P K M Electric Coop, Inc. The largest, Otter Tail Power Co, charged residential customers 11.33¢/kWh on average in 2024.
Are there data centers in Marshall County?
The SAVRN Data Center Map has no data center in Marshall County. The nearest activity on record is next door in Grand Forks County.
Is Marshall County adding jobs?
Employers counted 2,430 jobs in 2025 against 2,235 in 2019 (+8.7%, BLS QCEW). Construction went from 137 to 176.
Does Marshall County have a data center moratorium?
No county-level measure is on record for Marshall County. Minnesota has 25 local measures statewide, listed on the state page.