Power Outages in Union County, SD
As of the latest utility report, no major power outages are reported in Union County, SD. In 2025, the average customer here lost power for about 7.3 hours.
Union County, SD is served by 1 tracked utility.
No active power outages are currently reported in Union County.
No active NWS alerts for Union County right now.
Union County has been under 2 National Weather Service alerts recently — most recently a Heat Advisory on July 17, 2026.
- Heat Advisory ×2
Hardest-hit cities in Union County
Where this event is concentrated across the county's towns and townships.
Historical reliability
In 2025, the average customer in Union County went about 7.3 hours without power. Peak simultaneous outage on record reached 3,566 customers.
Worst year here was 2016 (peak 3,566 customers out) · decade average 3.3 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2015 | 35 | 218 | 0.3 |
| 2016 | 98 | 3,566 | 8.6 |
| 2017 | 72 | 594 | 1.4 |
| 2019 | 14 | 314 | 0.2 |
| 2020 | 109 | 226 | 1.7 |
| 2021 | 137 | 1,843 | 2.6 |
| 2022 | 153 | 2,144 | 3.5 |
| 2023 | 152 | 1,082 | 2.3 |
| 2024 | 156 | 1,806 | 5.5 |
| 2025 | 172 | 650 | 7.3 |
Relatively Moderate ice storms exposure · 3.3 hrs/yr of outages over the last decade.
Power outages in Union County: FAQ
- How often does Union County, SD lose power?
- Based on EAGLE-I records, Union County, SD logged 172 distinct outage events in 2025, averaging about 7.3 hours without power per customer over the year.
- What was the worst power outage in Union County, SD?
- The largest tracked outage peaked at 3,566 customers without power, beginning September 6, 2016 and lasting about 2h 30m.
- Is there a power outage in Union County, SD right now?
- No major outage is currently reported for Union County, SD. Live coverage depends on whether local utilities report to ODIN.
- Which utilities serve Union County, SD?
- Tracked electric providers include MIDAMERICAN ENERGY CO.
Outages are tracked at the county level; these ZIP codes fall within Union County.
57001, 57025, 57038, 57049
Electric providers serving this county
From EIA-861 service territory, with official reliability where reported.
| Provider | Official SAIDI (EIA) | Live | Report outage |
|---|---|---|---|
| MIDAMERICAN ENERGY CO | — | ODIN ✓ | — |
Machine-readable data: /api/v1/counties/46127 and /api/v1/counties/46127/history. Historical figures derive from the DOE/ORNL EAGLE-I dataset (EAGLE-I tracked roughly 0% of South Dakota customers).