Power Outages in Yankton County, SD
Bon Homme Yankton El Assn, Inc, Clay-Union Electric Corp, NorthWestern Energy - (SD) and Southeastern Electric Coop Inc - (SD) 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 2.3 hours.
Yankton County, SD is served by 5 tracked utilities.
Cite this data
- URL
- https://massoutage.com/south-dakota/yankton-county
- As of
- Not available
- Publisher
- MassOutage
MassOutage, "Power Outages in Yankton County, SD". https://massoutage.com/south-dakota/yankton-county
Bon Homme Yankton El Assn, Inc, Clay-Union Electric Corp, NorthWestern Energy - (SD) and Southeastern Electric Coop Inc - (SD) 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 ~15,464 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: Bon Homme Yankton El Assn, Inc, Clay-Union Electric Corp, NorthWestern Energy - (SD), Southeastern Electric Coop Inc - (SD).
| Utility | Feed | Out | Served | % out | Small outages | Incidents | Utility ETR | As of |
|---|---|---|---|---|---|---|---|---|
| Bon Homme Yankton El Assn, Inc | Live · total only | not by county | - | - | - | - | - | - |
| Clay-Union Electric Corp | Live · total only | not by county | - | - | - | - | - | - |
| NorthWestern Energy - (SD) | Live · total only | not by county | - | - | - | - | - | - |
| Southeastern Electric Coop Inc - (SD) | 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 Yankton 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 (7)
| ZIP | Power-dependent | Ventilators | O2 concentrators | Home dialysis |
|---|---|---|---|---|
| 57078 | 222 | 21 | 177 | 0 |
| 57072 | ≤11 | 0 | ≤11 | 0 |
| 57067 | ≤11 | ≤11 | ≤11 | 0 |
| 57046 | ≤11 | ≤11 | ≤11 | 0 |
| 57040 | ≤11 | 0 | ≤11 | 0 |
| 57037 | ≤11 | ≤11 | ≤11 | 0 |
| 57031 | ≤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 Yankton County or any town and utility in it.
No active NWS alerts for Yankton County right now.
Yankton County has been under 7 National Weather Service alerts recently, most recently a Dense Fog Advisory on September 30, 2026.
- Dense Fog Advisory ×7
Hardest-hit cities in Yankton County
Where this event is concentrated across the county's towns and townships.
Historical reliability
In 2025, the average customer in Yankton County went about 2.3 hours without power. Peak simultaneous outage on record reached 5,835 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 2.3 hrs.
Worst year here was 2020 (peak 1,406 customers out) · decade average 5.5 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2019 | 21 | 68 | 0.1 |
| 2020 | 184 | 1,406 | 29.5 |
| 2021 | 151 | 1,795 | 1.4 |
| 2022 | 197 | 3,235 | 1.6 |
| 2023 | 182 | 5,835 | 3.1 |
| 2024 | 151 | 1,500 | 0.8 |
| 2025 | 185 | 1,953 | 2.3 |
Cost of power in Yankton County
ENERGY & AI DEMAND →Estimated residential electricity price for Yankton 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
- Southeastern Electric Coop Inc - (SD)13.0¢20,959 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 ice storms exposure · 5.5 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 Yankton County: FAQ
- How often does Yankton County, SD lose power?
- Based on EAGLE-I records, Yankton County, SD logged 185 distinct outage events in 2025, averaging about 2.3 hours without power per customer over the year.
- What was the worst power outage in Yankton County, SD?
- The largest tracked outage peaked at 5,835 customers without power, beginning July 18, 2023 and lasting about 4h.
- Is there a power outage in Yankton County, SD right now?
- No major outage is currently reported for Yankton County, SD. Live coverage depends on whether local utilities report to ODIN.
- Which utilities serve Yankton County, SD?
- Tracked electric providers include Bon Homme Yankton El Assn, Inc, NorthWestern Energy - (SD).
Outages are tracked at the county level; these ZIP codes fall within Yankton County.
57031, 57037, 57040, 57046, 57067, 57072, 57078
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 | - |
| WAPA-- Western Area Power Administration | - | No live feed | - |
| Southeastern Electric Coop Inc - (SD) | - | Live · total only | - |
| Clay-Union Electric Corp | - | Live · total only | - |
| Bon Homme Yankton El Assn, 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/46135 and /api/v1/counties/46135/history.