Datacenter Sites in Montana
Montana has 2,542 scored datacenter candidate sites averaging 54.3/100 DC Readiness. Substation-Adjacent parcels lead the inventory (815 sites). Most sites interconnect through WECC. The state's candidate sites carry a catalogued aggregate of 72.9k MW and average a 1.1 yrs interconnection-queue wait.
At a glance
Montana has 2,542 scored datacenter candidate sites, the 24th-most of the 50 states, DC and Puerto Rico, averaging 54.3/100 DC Readiness against a national average of 53.0. Its average score ranks 21st among states. The state also has 9 operating datacenters and 10 internet exchange facilities on record.
How does Montana compare with other states for datacenter sites?
By number of scored candidate sites, Montana ranks 24th of the 50 states, DC and Puerto Rico (2,542 of 147,272 nationally, 1.7%). Its average DC Readiness of 54.3/100 ranks 21st and is roughly in line with the national average of 53.0. The average interconnection-queue wait at its sites, 1.1-year, is the shortest of the group (national 4.2-year).
Across the five headline sub-scores, Montana is strongest relative to the nation on natural hazard (87.7 vs 66.8 nationally) and weakest on water (56.1 vs 72.3). Power and speed to power carry 20% of the score each, fiber 12%, water 7% and hazard 6%.
Which counties in Montana have the most datacenter sites?
Broadwater County (144 sites, average 52.1), Yellowstone County (140 sites, average 59.2), and Flathead County (121 sites, average 52.4) hold the largest inventories. Together the top 3 account for 16% of the state's scored sites. Yellowstone County has the highest average score among counties with at least 10 sites (59.2/100). 55 counties have five or more scored sites and their own county page.
What kinds of sites and grid regions are in Montana?
Substation-Adjacent parcels are the largest category (815, 32%), followed by federal excess (723) and industrial (561). Sites span 2 grid regions; WECC covers 77% of them.
By site type
Average sub-score profile
How Montana's candidate sites score on each DC Readiness dimension (0–100 average).
Top 25 datacenter sites in Montana
Ranked by DC Readiness.
| Site | Type | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|
| COLSTRIP | Substation-Adjacent | Rosebud County | 500 kV | 1,000 MW | 1.1 yrs | 75.8 |
| BROADVIEW | Substation-Adjacent | Golden Valley County | 500 kV | 1,000 MW | 1.1 yrs | 70.1 |
| RATTLESNAKE | Substation-Adjacent | Missoula County | 230 kV | 300 MW | 1.1 yrs | 67.4 |
| BILLINGS | Substation-Adjacent | Yellowstone County | 230 kV | 300 MW | 1.1 yrs | 67.4 |
| ALKALI CREEK | Substation-Adjacent | Yellowstone County | 230 kV | 300 MW | 1.1 yrs | 67.2 |
| SHOREY ROAD | Substation-Adjacent | Yellowstone County | 230 kV | 300 MW | 1.1 yrs | 67.1 |
| TAFT | Substation-Adjacent | Shoshone County | 500 kV | 1,000 MW | 1.1 yrs | 67.0 |
| EC Coal Yellowstone County | Greenfield | Yellowstone County | — | — | 1.1 yrs | 66.9 |
| GARRISON | Substation-Adjacent | Powell County | 500 kV | 1,000 MW | 1.1 yrs | 66.9 |
| UNKNOWN202569 | Substation-Adjacent | Yellowstone County | 230 kV | 300 MW | 1.1 yrs | 66.8 |
| EC Near J E Corette Plant | Greenfield | Yellowstone | — | — | 1.1 yrs | 66.7 |
| EC Near J E Corette Plant | Greenfield | Yellowstone | — | — | 1.1 yrs | 66.0 |
| HOT SPRINGS | Substation-Adjacent | Lake County | 500 kV | 1,000 MW | 1.1 yrs | 65.8 |
| EC Coal Rosebud County | Greenfield | Rosebud County | — | — | 1.1 yrs | 65.7 |
| EC Near Colstrip | Greenfield | Rosebud | — | — | 1.1 yrs | 65.7 |
| OZ Gallatin | Greenfield | Gallatin | — | — | 1.1 yrs | 65.3 |
| ROSEBUD CREEK | Substation-Adjacent | Rosebud County | 230 kV | 300 MW | 1.1 yrs | 65.2 |
| EC Near J E Corette Plant | Greenfield | Yellowstone | — | — | 1.1 yrs | 65.2 |
| DECKER | Substation-Adjacent | Sheridan County | 230 kV | 300 MW | 1.1 yrs | 65.2 |
| EC Coal Yellowstone County | Greenfield | Yellowstone County | — | — | 1.1 yrs | 65.2 |
| UNKNOWN205088 | Substation-Adjacent | Yellowstone County | 275 kV | 300 MW | 1.1 yrs | 65.1 |
| UNKNOWN202694 | Substation-Adjacent | Yellowstone County | 230 kV | 300 MW | 1.1 yrs | 65.0 |
| TAP205587 | Substation-Adjacent | Yellowstone County | 275 kV | 300 MW | 1.1 yrs | 65.0 |
| EC Near Colstrip | Greenfield | Rosebud | — | — | 1.1 yrs | 64.9 |
| EC Near Colstrip | Greenfield | Rosebud | — | — | 1.1 yrs | 64.9 |
Counties in Montana
55 counties with five or more scored sites.
Sites in Montana counties with fewer than five sites
3 scored sites sit in counties too small for a county page of their own.
- JORDAN · Garfield County · 52.1
- Jordan High School Dormitory · Garfield County · 47.3
- MONTANA - LEASE · Garfield County · 46.9
Operating datacenters in Montana
9 operating datacenter facilities in Montana are on record, the 39th-most of any state. Billings has the largest cluster (3 facilities). The operators with the most facilities here are iConnect Montana (2), Advanced Communications Technology (1), Parsec Data Management, Inc (1). Footprints are recorded for 2 of them, totalling about 0 million square feet.
Billings (3)
- Cogent Billings · Cogent Communications, Inc.
- iConnect Billings Fiber Hotel · iConnect Montana
- Parsec Data Management · Parsec Data Management, Inc
Bozeman (2)
- JSLLC Bozeman · Johnson Services, LLC.
- Montana Opticom · Montana Opticom LLC
Colstrip (1)
- ACT Colstrip · Advanced Communications Technology
Missoula (1)
- iConnect Missoula · iConnect Montana
City not recorded (2)
- State of Montana Data Center · State of Montana
- Datacenter 00758426349
Internet exchange and peering facilities in Montana
10 peering and colocation facilities in Montana are listed in PeeringDB. Billings has the most (4). The best-connected facility hosts 7 networks; the median facility in the state hosts 1 networks.
Billings (4)
- iConnect Billings Fiber Hotel · 7 networks
- Cogent Billings · 1 networks
- Parsec · 1 networks
- YRIX · 0 networks
Bozeman (2)
- Montana Opticom · 1 networks
- JSLLC Bozeman · 0 networks
Colstrip (1)
- ACT Colstrip · 1 networks
Great Falls (1)
- North Data Center, LLC · 1 networks
Helena (1)
- iConnect Helena · 5 networks
Missoula (1)
- iConnect Missoula · 7 networks
Montana datacenter site selection FAQ
How many datacenter sites are in Montana?
GridCensus catalogs 2,542 scored datacenter candidate sites in Montana, with an average DC Readiness score of 54.3/100. That is the 24th-largest inventory of the 50 states, DC and Puerto Rico.
How many operating datacenters are in Montana?
9 operating datacenter facilities in Montana are on record, the 39th-most of any state. Billings has the most (3). iConnect Montana operates the most facilities in the state (2).
What is the average interconnection-queue wait in Montana?
Candidate sites in Montana average a 1.1-year interconnection-queue wait, with an average queue depth of 41 projects. The national average across all scored sites is 4.2-year, and Montana has the shortest average wait of the 50 states, DC and Puerto Rico.
Which county in Montana has the most datacenter sites?
Broadwater County has the most scored candidate sites in Montana (144), followed by Yellowstone County (140) and Flathead County (121). Among counties with at least 10 sites, Yellowstone County has the highest average DC Readiness (59.2/100).
What kind of datacenter sites are most common in Montana?
Substation-Adjacent sites are the most common category in Montana (815 sites, 32% of the inventory), and most sites fall within the WECC grid region.
How many internet exchange facilities are in Montana?
10 peering and colocation facilities listed in PeeringDB are in Montana. Billings has the most (4). The best-connected one hosts 7 networks.
Looking for a specific record? The directory lists every scored datacenter site in Montana, A to Z.
More Montana infrastructure
- Electric substations in Montana
- Brownfield and retired power plant sites in Montana
- WECC grid region· 1,963 sites here
- SPP grid region· 577 sites here
- Substation-Adjacent sites in Montana· 815
- Federal Excess sites in Montana· 723
- Industrial sites in Montana· 561
- Former Mine sites in Montana· 377
- States ranked by datacenter readiness
About this data
Source: GridCensus composite of HIFLD transmission and substation data, EIA, FEMA National Risk Index, FCC broadband data, PeeringDB and ISO interconnection queues, as published November 12, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “Datacenter candidate sites in Montana”, https://gridcensus.com/datacenter-sites/montana (data as of November 12, 2026).
Dataset updated . Screening estimates derived from public data sources.
Go deeper than the public screen
Every site and score for Montana 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.