Power Outages in Custer County, SD
Black Hills Electric Coop, Inc and Black Hills Power, Inc. publish only a system-wide total, not county figures. There is no live feed for WAPA-- Western Area Power Administration. In 2025, the average customer here lost power for about 64.8 hours.
Custer County, SD is served by 3 tracked utilities.
Cite this data
- URL
- https://massoutage.com/south-dakota/custer-county
- As of
- Not available
- Publisher
- MassOutage
MassOutage, "Power Outages in Custer County, SD". https://massoutage.com/south-dakota/custer-county
Black Hills Electric Coop, Inc and Black Hills Power, Inc. publish no county-level figures.
No live feed for WAPA-- Western Area Power Administration: outages in itsservice area won't show here.
0.0%of this county's ~6,148 customers are served by utilities with a county-level live feed.
We can't see outages for: WAPA-- Western Area Power Administration. Their customers are not in any number on this page; check their own outage maps.
System-wide total only, no county split: Black Hills Electric Coop, Inc, Black Hills Power, Inc..
| Utility | Feed | Out | Served | % out | Small outages | Incidents | Utility ETR | As of |
|---|---|---|---|---|---|---|---|---|
| Black Hills Electric Coop, Inc | Live · total only | not by county | - | - | - | - | - | - |
| Black Hills Power, Inc. | Live · total only | not by county | - | - | - | - | - | - |
| 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 (5)
| ZIP | Power-dependent | Ventilators | O2 concentrators | Home dialysis |
|---|---|---|---|---|
| 57730 | 166 | ≤11 | 148 | 0 |
| 57744 | 46 | 0 | 37 | 0 |
| 57773 | ≤11 | 0 | ≤11 | 0 |
| 57738 | ≤11 | 0 | ≤11 | 0 |
| 57722 | ≤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 7 National Weather Service alerts recently, most recently a Freeze Warning on October 16, 2026.
- Freeze Warning ×3
- Wind Advisory ×2
- Fire Weather Watch ×1
- Red Flag Warning ×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 64.8 hours without power. Peak simultaneous outage on record reached 4,481 customers.
The US EIA reports South Dakota utilities averaged 4.7 hrs without power per customer (SAIDI) in 2025, a cross-check on our county estimate of 64.8 hrs.
Worst year here was 2025 (peak 4,481 customers out) · decade average 9.5 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2016 | 80 | 694 | 1.5 |
| 2017 | 51 | 779 | 2.8 |
| 2018 | 70 | 67 | 0.2 |
| 2019 | 95 | 1,649 | 5.2 |
| 2020 | 171 | 704 | 5.5 |
| 2021 | 169 | 1,564 | 6.1 |
| 2022 | 190 | 861 | 3.4 |
| 2023 | 161 | 1,386 | 3.5 |
| 2024 | 184 | 714 | 2.2 |
| 2025 | 170 | 4,481 | 64.8 |
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.
- Black Hills Power, Inc.15.1¢67,608 cust
- Black Hills Electric Coop, Inc14.8¢9,415 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 Moderate wildfire exposure · 9.5 hrs/yr of outages over the last decade.
Power outages in Custer County: FAQ
- How often does Custer County, SD lose power?
- Based on EAGLE-I records, Custer County, SD logged 170 distinct outage events in 2025, averaging about 64.8 hours without power per customer over the year.
- What was the worst power outage in Custer County, SD?
- The largest tracked outage peaked at 4,481 customers without power, beginning November 13, 2025 and lasting about 10h.
- Is there a power outage in Custer County, SD right now?
- No major outage is currently reported for Custer County, SD. Live coverage depends on whether local utilities report to ODIN.
- Which utilities serve Custer County, SD?
- Tracked electric providers include Black Hills Electric Coop, Inc, Black Hills Power, Inc..
Outages are tracked at the county level; these ZIP codes fall within Custer County.
57730, 57738, 57744, 57773
Electric providers serving this county
From EIA-861 service territory, with official reliability where reported.
| Provider | Official SAIDI (EIA) | Live | Report outage |
|---|---|---|---|
| Black Hills Power, Inc. | 8.8 hrs | Live · total only | - |
| Black Hills Electric Coop, Inc | 41.4 hrs | Live · total only | - |
| WAPA-- Western Area Power Administration | - | 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 South Dakota customers). Machine-readable data: /api/v1/counties/46033 and /api/v1/counties/46033/history.