Power Outages in Custer County, MT
Montana-Dakota Utilities Co has not reported outages here, but it only publishesactive outages, so that isn't a confirmed all-clear. There is no live feed for McCone Electric Coop Inc, Mid-Yellowstone Elec Coop, Inc, Southeast Electric Coop, Inc, Tongue River Electric Coop Inc and WAPA-- Western Area Power Administration. In 2025, the average customer here lost power for about 0.4 hours.
Custer County, MT is served by 6 tracked utilities.
Cite this data
- URL
- https://massoutage.com/montana/custer-county
- As of
- Not available
- Publisher
- MassOutage
MassOutage, "Power Outages in Custer County, MT". https://massoutage.com/montana/custer-county
Montana-Dakota Utilities Co only appearsin feeds while reporting outages, so no report isn't a confirmed all-clear.
No live feed for McCone Electric Coop Inc, Mid-Yellowstone Elec Coop, Inc, Southeast Electric Coop, Inc, Tongue River Electric Coop Inc and WAPA-- Western Area Power Administration: outages in theirservice area won't show here.
0.0%of this county's ~6,988 customers are served by utilities with a county-level live feed.
We can't see outages for: McCone Electric Coop Inc, Mid-Yellowstone Elec Coop, Inc, Southeast Electric Coop, Inc, Tongue River Electric Coop Inc, WAPA-- Western Area Power Administration. Their customers are not in any number on this page; check their own outage maps.
Only visible while reporting outages: Montana-Dakota Utilities Co. Zero here is not a confirmed all-clear.
| Utility | Feed | Out | Served | % out | Small outages | Incidents | Utility ETR | As of |
|---|---|---|---|---|---|---|---|---|
| Montana-Dakota Utilities Co | Outages only | none reported | - | - | - | - | - | - |
| McCone Electric Coop Inc | No live feed | can't see | - | - | - | - | - | - |
| Mid-Yellowstone Elec Coop, Inc | No live feed | can't see | - | - | - | - | - | - |
| Southeast Electric Coop, Inc | No live feed | can't see | - | - | - | - | - | - |
| Tongue River Electric Coop Inc | No live feed | can't see | - | - | - | - | - | - |
| WAPA-- Western Area Power Administration | No live feed | can't see | - | - | - | - | - | - |
Electricity-dependent residents
HHS emPOWER · data October 7, 2026Medicare beneficiaries in Custer Countywho rely on electricity-dependent medical equipment (ventilators, oxygen concentrators, home dialysis, powered wheelchairs, and more). HHS reports counts of 1–10 as “≤11”. Medicare only, so the full at-risk population is larger.
By ZIP code (4)
| ZIP | Power-dependent | Ventilators | O2 concentrators | Home dialysis |
|---|---|---|---|---|
| 59301 | 164 | ≤11 | 152 | ≤11 |
| 59351 | ≤11 | 0 | ≤11 | 0 |
| 59338 | ≤11 | 0 | ≤11 | 0 |
| 59336 | ≤11 | 0 | ≤11 | 0 |
Emergency managers can request identified beneficiary lists through their state health department via the HHS emPOWER program.
Outage began, grew, restoration estimate changed, restored: by email, Slack, Teams, Discord or signed webhook, for Custer County or any town and utility in it.
No active NWS alerts for Custer County right now.
Custer County has been under 12 National Weather Service alerts recently, most recently a Flood Watch on September 20, 2026.
- Flood Watch ×8
- High Wind Warning ×3
- Special Weather Statement ×1
Hardest-hit cities in Custer County
Where this event is concentrated across the county's towns and townships.
Historical reliability
In 2025, the average customer in Custer County went about 0.4 hours without power. Peak simultaneous outage on record reached 4,487 customers.
The US EIA reports Montana utilities averaged 4.8 hrs without power per customer (SAIDI) in 2025, a cross-check on our county estimate of 0.4 hrs.
Worst year here was 2024 (peak 2,045 customers out) · decade average 1.5 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2017 | 107 | 4,342 | 1.7 |
| 2018 | 39 | 969 | 0.4 |
| 2019 | 41 | 892 | 0.7 |
| 2020 | 67 | 4,487 | 2.2 |
| 2021 | 76 | 676 | 0.6 |
| 2022 | 55 | 4,016 | 1.1 |
| 2023 | 68 | 2,691 | 0.6 |
| 2024 | 53 | 2,045 | 5.5 |
| 2025 | 60 | 1,486 | 0.4 |
Cost of power in Custer County
ENERGY & AI DEMAND →Estimated residential electricity price for Custer County, customer-weighted across the utilities serving it (US EIA, 2025). Retail prices aren't published at the county level; this is a derived estimate.
- Montana-Dakota Utilities Co12.3¢19,626 cust
Weighted by each utility's residential customer count (utilities report customers at the state level; a per-county share isn't published). Rising retail prices track a national demand surge; see energy & the data-center boom.
Relatively High winter weather exposure · 1.5 hrs/yr of outages over the last decade.
FEMA rates this county’s social vulnerability relatively high: outages hit harder where communities are less able to respond and recover.
All hazard rankings →Power outages in Custer County: FAQ
- How often does Custer County, MT lose power?
- Based on EAGLE-I records, Custer County, MT logged 60 distinct outage events in 2025, averaging about 0.4 hours without power per customer over the year.
- What was the worst power outage in Custer County, MT?
- The largest tracked outage peaked at 4,487 customers without power, beginning December 3, 2020 and lasting about 3h 45m.
- Is there a power outage in Custer County, MT right now?
- No major outage is currently reported for Custer County, MT. Live coverage depends on whether local utilities report to ODIN.
- Which utilities serve Custer County, MT?
- Tracked electric providers include Montana-Dakota Utilities Co.
Outages are tracked at the county level; these ZIP codes fall within Custer County.
59301, 59336, 59338, 59345
Electric providers serving this county
From EIA-861 service territory, with official reliability where reported.
| Provider | Official SAIDI (EIA) | Live | Report outage |
|---|---|---|---|
| Montana-Dakota Utilities Co | 2.4 hrs | Outages only | - |
| WAPA-- Western Area Power Administration | - | No live feed | - |
| McCone Electric Coop Inc | - | No live feed | - |
| Tongue River Electric Coop Inc | - | No live feed | - |
| Southeast Electric Coop, Inc | - | No live feed | - |
| Mid-Yellowstone Elec Coop, Inc | - | No live feed | - |
Data from DOE/ORNL ODIN, DOE EAGLE-I, EIA Form 861 (utility reliability), EIA electricity retail prices and FEMA National Risk Index, every source we read. Historical figures derive from the DOE/ORNL EAGLE-I dataset (EAGLE-I tracked roughly 0% of Montana customers). Machine-readable data: /api/v1/counties/30017 and /api/v1/counties/30017/history.