Power Outages in Clark County, SD
Codington-Clark Elec Coop, Inc, H-D Electric Coop Inc, Kingsbury Electric Coop, Inc, NorthWestern Energy - (SD) and Northern Electric Coop, 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 7.7 hours.
Clark County, SD is served by 6 tracked utilities.
Cite this data
- URL
- https://massoutage.com/south-dakota/clark-county
- As of
- Not available
- Publisher
- MassOutage
MassOutage, "Power Outages in Clark County, SD". https://massoutage.com/south-dakota/clark-county
Codington-Clark Elec Coop, Inc, H-D Electric Coop Inc, Kingsbury Electric Coop, Inc, NorthWestern Energy - (SD) and Northern Electric Coop, 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 ~2,338 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: Codington-Clark Elec Coop, Inc, H-D Electric Coop Inc, Kingsbury Electric Coop, Inc, NorthWestern Energy - (SD), Northern Electric Coop, Inc.
| Utility | Feed | Out | Served | % out | Small outages | Incidents | Utility ETR | As of |
|---|---|---|---|---|---|---|---|---|
| Codington-Clark Elec Coop, Inc | Live · total only | not by county | - | - | - | - | - | - |
| H-D Electric Coop Inc | Live · total only | not by county | - | - | - | - | - | - |
| Kingsbury Electric Coop, Inc | Live · total only | not by county | - | - | - | - | - | - |
| NorthWestern Energy - (SD) | Live · total only | not by county | - | - | - | - | - | - |
| Northern Electric Coop, 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 Clark 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 (6)
| ZIP | Power-dependent | Ventilators | O2 concentrators | Home dialysis |
|---|---|---|---|---|
| 57225 | 15 | 0 | 12 | 0 |
| 57278 | ≤11 | 0 | ≤11 | 0 |
| 57271 | ≤11 | 0 | ≤11 | 0 |
| 57258 | ≤11 | 0 | ≤11 | 0 |
| 57236 | ≤11 | 0 | ≤11 | 0 |
| 57217 | ≤11 | ≤11 | ≤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 Clark County or any town and utility in it.
No active NWS alerts for Clark County right now.
Clark County has been under 10 National Weather Service alerts recently, most recently a Dense Fog Advisory on October 12, 2026.
- Dense Fog Advisory ×7
- Special Weather Statement ×3
Hardest-hit cities in Clark County
Where this event is concentrated across the county's towns and townships.
Historical reliability
In 2025, the average customer in Clark County went about 7.7 hours without power. Peak simultaneous outage on record reached 1,587 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 7.7 hrs.
Worst year here was 2020 (peak 563 customers out) · decade average 5.5 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2019 | 2 | 2 | 0.0 |
| 2020 | 56 | 563 | 12.1 |
| 2021 | 43 | 385 | 3.1 |
| 2022 | 47 | 831 | 10.8 |
| 2023 | 51 | 461 | 3.5 |
| 2024 | 39 | 317 | 1.0 |
| 2025 | 79 | 1,587 | 7.7 |
Cost of power in Clark County
ENERGY & AI DEMAND →Estimated residential electricity price for Clark 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.
- NorthWestern Energy - (SD)13.4¢51,787 cust
- Northern Electric Coop, Inc11.4¢5,823 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 Low ice storms exposure · 5.5 hrs/yr of outages over the last decade.
Power outages in Clark County: FAQ
- How often does Clark County, SD lose power?
- Based on EAGLE-I records, Clark County, SD logged 79 distinct outage events in 2025, averaging about 7.7 hours without power per customer over the year.
- What was the worst power outage in Clark County, SD?
- The largest tracked outage peaked at 1,587 customers without power, beginning June 11, 2025 and lasting about 2h 30m.
- Is there a power outage in Clark County, SD right now?
- No major outage is currently reported for Clark County, SD. Live coverage depends on whether local utilities report to ODIN.
- Which utilities serve Clark County, SD?
- Tracked electric providers include Codington-Clark Elec Coop, Inc, NorthWestern Energy - (SD).
Outages are tracked at the county level; these ZIP codes fall within Clark County.
57217, 57225, 57236, 57258, 57271, 57278
Electric providers serving this county
From EIA-861 service territory, with official reliability where reported.
| Provider | Official SAIDI (EIA) | Live | Report outage |
|---|---|---|---|
| NorthWestern Energy - (SD) | 2.0 hrs | Live · total only | - |
| Northern Electric Coop, Inc | 1.2 hrs | Live · total only | - |
| WAPA-- Western Area Power Administration | - | No live feed | - |
| Codington-Clark Elec Coop, Inc | - | Live · total only | - |
| H-D Electric Coop Inc | - | Live · total only | - |
| Kingsbury Electric Coop, Inc | - | Live · total only | - |
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/46025 and /api/v1/counties/46025/history.