Electric Substations in Minnesota
208 named substations in Minnesota, with the highest-voltage facilities listed first. Each substation profile shows voltage class, connected transmission lines, and the datacenter candidate sites closest to it.
At a glance
How is Minnesota's substation network split by voltage?
By maximum voltage, the named substations break down as 3 at 500 kV and above; 27 at 345–499 kV; 20 at 230–344 kV; 104 at 115–229 kV; 46 at 69–114 kV; 8 withvoltage not recorded. 14% of Minnesota's named substations operate at 345 kV or above, against 8% across all 16,654 named US substations. The state median of 115 kV is level with the national median of 115 kV.
How does Minnesota compare with other states?
Minnesota ranks 22nd of 50 states and DC by number of named substations and 17th by named substations at 345 kV or above. It also has 3,216 scored datacenter candidate sites with an average DC Readiness score of 56 (national average 53), and an average power sub-score of 39.3 against 37.4 nationally. Most of those sites (3,100) are in the MISO market.
Which substations in Minnesota have the highest voltage?
| Substation | Max voltage | Connected lines | Line owner |
|---|---|---|---|
| CHISAGO | 500 kV | 5 | NORTHERN STATES POWER CO - MINNESOTA |
| FORBES | 500 kV | 10 | ALLETE, INC. |
| ROSEAU COUNTY | 500 kV | 2 | OTTER TAIL POWER CO |
| DICKINSON | 400 kV | 8 | DELANO MUNICIPAL UTILITIES |
| ADAMS | 345 kV | 11 | — |
| ALEXANDRIA | 345 kV | 5 | NORTHERN STATES POWER CO - MINNESOTA |
| ARROWHEAD | 345 kV | 12 | ALLETE, INC. |
| BENTON | 345 kV | 8 | NORTHERN STATES POWER CO - MINNESOTA |
| BLUE LAKE | 345 kV | 10 | NORTHERN STATES POWER CO - MINNESOTA |
| BUNKER LAKE | 345 kV | 9 | NORTHERN STATES POWER CO - MINNESOTA |
| BYRON | 345 kV | 6 | NORTHERN STATES POWER CO - MINNESOTA |
| CEDAR MOUNTAIN | 345 kV | 5 | OTTER TAIL POWER CO |
| CHUB LAKE | 345 kV | 6 | NORTHERN STATES POWER CO - MINNESOTA |
| EDEN PRAIRIE | 345 kV | 4 | NORTHERN STATES POWER CO - MINNESOTA |
| HAMPTON | 345 kV | 4 | NORTHERN STATES POWER CO - MINNESOTA |
| HELENA | 345 kV | 5 | NORTHERN STATES POWER CO - MINNESOTA |
| KING PLANT | 345 kV | 7 | NORTHERN STATES POWER CO - MINNESOTA |
| KOHLMAN LAKE | 345 kV | 8 | NORTHERN STATES POWER CO - MINNESOTA |
| LAKEFIELD JUNCTION | 345 kV | 10 | NORTHERN STATES POWER CO - MINNESOTA |
| LYON COUNTY | 345 kV | 11 | OTTER TAIL POWER CO |
| MAXWELL | 345 kV | 12 | NORTHERN STATES POWER CO - MINNESOTA |
| MINN VALLEY | 345 kV | 9 | WAPA-- WESTERN AREA POWER ADMINISTRATION |
| MONTICELLO | 345 kV | 9 | NORTHERN STATES POWER CO - MINNESOTA |
| NORTH ROCHESTER | 345 kV | 6 | NORTHERN STATES POWER CO - MINNESOTA |
| PARKERS LAKE | 345 kV | 8 | NORTHERN STATES POWER CO - MINNESOTA |
| QUARRY | 345 kV | 6 | NORTHERN STATES POWER CO - MINNESOTA |
| SCOTT CO | 345 kV | 9 | NORTHERN STATES POWER CO - MINNESOTA |
| SHERBURNE COUNTY | 345 kV | 12 | NORTHERN STATES POWER CO - MINNESOTA |
| TERMINAL | 345 kV | 7 | NORTHERN STATES POWER CO - MINNESOTA |
| WILMARTH | 345 kV | 8 | NORTHERN STATES POWER CO - MINNESOTA |
| AUDOBON 230KV | 230 kV | 6 | OTTER TAIL POWER CO |
| BADOURA 230/115 KV | 230 kV | 2 | ALLETE, INC. |
| BLACKBERRY | 230 kV | 10 | MINNESOTA POWER INC |
| BLAINE | 230 kV | 6 | NORTHERN STATES POWER CO - MINNESOTA |
| ELK RIVER | 230 kV | 7 | NORTHERN STATES POWER CO - MINNESOTA |
| GRANITE FALLS | 230 kV | 12 | WAPA-- WESTERN AREA POWER ADMINISTRATION |
| HILLTOP 230/115KV | 230 kV | 6 | ALLETE, INC. |
| HUBBARD | 230 kV | 4 | ALLETE, INC. |
| LITTLEFORK | 230 kV | 3 | MINNESOTA POWER INC |
| MOORHEAD | 230 kV | 3 | — |
| MORRIS | 230 kV | 5 | OTTER TAIL POWER CO |
| MUD LAKE | 230 kV | 5 | MINNESOTA POWER INC |
| PANTHER | 230 kV | 4 | NORTHERN STATES POWER CO - MINNESOTA |
| RIVERTON 230/115 KV | 230 kV | 7 | MINNESOTA POWER INC |
| RUSH CITY/CAPS | 230 kV | 6 | NORTHERN STATES POWER CO - MINNESOTA |
| SHANNON | 230 kV | 5 | ALLETE, INC. |
| WILLMAR | 230 kV | 6 | WAPA-- WESTERN AREA POWER ADMINISTRATION |
| WILTON | 230 kV | 7 | OTTER TAIL POWER CO |
| WING RIVER | 230 kV | 4 | ALLETE, INC. |
| WINGER | 230 kV | 10 | WAPA-- WESTERN AREA POWER ADMINISTRATION |
| BAMBER VALLEY | 161 kV | 2 | ROCHESTER PUBLIC UTILITIES |
| CASCADE CREEK | 161 kV | 5 | ROCHESTER PUBLIC UTILITIES |
| CHESTER | 161 kV | 8 | ROCHESTER PUBLIC UTILITIES |
| CROSSTOWN CASCADE | 161 kV | 2 | ROCHESTER PUBLIC UTILITIES |
| FARIBAULT | 161 kV | 2 | — |
| FREEBORN | 161 kV | 3 | NORTHERN STATES POWER CO - MINNESOTA |
| HUNTLEY | 161 kV | 8 | BLUE EARTH LIGHT & WATER |
| IBM | 161 kV | 2 | ROCHESTER PUBLIC UTILITIES |
| MAPLE LEAF | 161 kV | 4 | NORTHERN STATES POWER CO - MINNESOTA |
| NORTHERN HILLS | 161 kV | 3 | ROCHESTER PUBLIC UTILITIES |
Every named substation in Minnesota
All 208 named substations, grouped by voltage band.
500 kV and above · 3
345–499 kV · 27
230–344 kV · 20
115–229 kV · 104
- BAMBER VALLEY
- CASCADE CREEK
- CHESTER
- CROSSTOWN CASCADE
- FARIBAULT
- FREEBORN
- HUNTLEY
- IBM
- MAPLE LEAF
- NORTHERN HILLS
- SPRING CREEK
- ZUMBRO RIVER
- AFTON
- AIRPORT
- ALDRICH
- APACHE
- APPLE VALLEY
- ARDEN HILLS
- BADOURA 115/34 KV
- BAGLEY
- BASSETT CREEK
- BATTLE CREEK
- BAXTER
- BEMIDJI 115KV
- BIG SWAN
- BLACK DOG
- BLANCHARD
- BLUFF CREEK
- BRAINERD
- BRANDON MRES
- BURNETT 115/14 KV
- BURNSVILLE
- CANNON FALLS TRANS
- CEDARVALE
- CHASKA SW STATION
- CHEMOLITE
- CLOQUET 115/14 KV
- COTTAGE GROVE
- CROOKSTON
- CROW RIVER
- DAYTON'S BLUFF
- DEWING
- EDINA
- ELLIOT PARK
- EMPIRE
- FISCHER
- FOND-DU-LAC HYDRO ELECTRIC STATION
- GLEASON LAKE
- HASTINGS
- HASTINGS
- HIAWATHA
- HUDSON
- I-94
- INDIANA
- JOHNNYCAKE
- LAKE PULASKI
- LAKE SUPERIOR PAPER
- LAKEHEAD PIPELINE
- LAPORTE SWITCH &
- LEXINGTON
- LITTLE FALLS
- LONE OAK
- LONG LAKE
- M.L. HIBBARD S.E. STATION
- MAIN ST
- MEDICINE LAKE
- MEDINA
- MERRIAM PARK
- MERRIFIELD
- MIDTOWN
- MIDWAY
- MRES ALEXANDRIA
- MRES ELBOW LAKE
- NINE MILE CREEK
- NORTHWOODS
- NSP
- PAYNESVILLE
- PEQUOT LAKES
- PINE BEND
- POTLATCH 115KV
- PRIOR
- RAMSEY
- RED ROCK
- RIVERSIDE
- RIVERTON 115/34 KV
- ROGERS LAKE
- ROSE PLACE
- SHEPARD
- SOUTHTOWN
- ST. CLOUD
- ST. LOUIS PARK
- SUMMIT AVE
- TANNERS LAKE
- VERNDALE
- WEST HASTINGS
- WEST RIVER ROAD
- WESTERN
- WESTGATE
- WILLIAMS BROS
- WILSON
- WOODBURY
- WRENSHALL
- WYOMING
- YANKEE DOODLE
69–114 kV · 46
- ANOKA
- BECKER
- BIG FISH
- BLUE EARTH
- BUNKER LAKE
- BYLLESBY
- CANNON FALLS DIST
- CASTLE ROCK
- CHRISTENSON
- CLEVELAND
- COLONIAL HILLS
- COUNTY LINE SUBSTATION #19
- EAST WINONA
- EMILY 3
- FARMINGTON
- FOREST LAKE
- FOSSTON MUNICIPAL
- FRANKLIN
- GOODVIEW
- HASLERUD
- HOLLYDALE
- ISANTI
- JOHNSVILLE
- LEMAY LAKE
- LEXINGTON
- MARSHAN
- MILACA
- MORRISTOWN
- NORTHFIELD
- OAK LAWN
- OTSEGO
- PLYMOUTH
- PRIOR LAKE
- RED WING
- RINDAL
- SAND HILL
- SOUTH BROADWAY
- SOUTH CANNON FALLS
- SPRING VALLEY
- WASECA
- WASECA
- WAVERLY
- WILLMAR MUNICIPAL SOUTH
- WILLMAR MUNICIPAL SOUTHWEST
- WINTHROP
- ZUMBRO FALLS
voltage not recorded · 8
Frequently asked questions
How many electric substations are in Minnesota?
HIFLD records 2,357 substations in Minnesota, of which 208 carry a station name. That is the 22nd-most named substations of any state in the dataset.
What is the highest-voltage substation in Minnesota?
3 named substations in Minnesota share the top voltage of 500 kV, including CHISAGO, FORBES, ROSEAU COUNTY.
Which substation in Minnesota connects the most transmission lines?
BLACK DOG has the most connected transmission lines of the named substations listed here, with 13 at up to 115 kV.
How many substations in Minnesota are 345 kV or higher?
30 of 208 named substations (14%) operate at 345 kV or above, compared with 8% nationally. Minnesota ranks 17th of 50 states and DC for named substations at that level.
How many datacenter candidate sites in Minnesota are at substations?
1,270 of the 3,216 scored candidate sites in Minnesota are substation sites — locations generated at an existing substation. Scored sites across Minnesota average 56 on the 0–100 DC Readiness scale, against 53 nationally.
Looking for a specific record? The directory lists every substation in Minnesota, A to Z.
More on Minnesota, and states with similar counts
About this data
Source: HIFLD Electric Substations and Transmission Lines (U.S. Department of Homeland Security), as published June 29, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “Electric substations in Minnesota”, https://gridcensus.com/substations/minnesota (data as of June 29, 2026).
Dataset updated . Screening estimates derived from public data sources.
Go deeper than the public screen
Every site and score for substations in Minnesota is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.