Power Outages in Jefferson County, IA
As of the latest utility report, no major power outages are reported in Jefferson County, IA. In 2025, the average customer here lost power for about 2.6 hours.
Jefferson County, IA is served by 1 tracked utility.
No active power outages are currently reported in Jefferson County.
- Heat AdvisoryMODERATE
Jefferson County has been under 7 National Weather Service alerts recently — most recently a Heat Advisory on July 18, 2026.
- Heat Advisory ×4
- Special Weather Statement ×3
Hardest-hit cities in Jefferson County
Where this event is concentrated across the county's towns and townships.
Historical reliability
In 2025, the average customer in Jefferson County went about 2.6 hours without power. Peak simultaneous outage on record reached 5,442 customers.
Worst year here was 2020 (peak 4,656 customers out) · decade average 3.8 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2015 | 169 | 3,906 | 3.1 |
| 2016 | 203 | 4,479 | 3.9 |
| 2017 | 258 | 1,519 | 2.5 |
| 2018 | 365 | 2,899 | 6.2 |
| 2019 | 367 | 1,539 | 2.2 |
| 2020 | 421 | 4,656 | 6.6 |
| 2021 | 392 | 1,317 | 2.7 |
| 2022 | 369 | 1,345 | 1.6 |
| 2023 | 341 | 3,583 | 5.4 |
| 2024 | 468 | 5,442 | 5.6 |
| 2025 | 422 | 1,532 | 2.6 |
Relatively Moderate high winds exposure · 3.8 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 Jefferson County: FAQ
- How often does Jefferson County, IA lose power?
- Based on EAGLE-I records, Jefferson County, IA logged 422 distinct outage events in 2025, averaging about 2.6 hours without power per customer over the year.
- What was the worst power outage in Jefferson County, IA?
- The largest tracked outage peaked at 5,442 customers without power, beginning July 16, 2024 and lasting about 18h 45m.
- Is there a power outage in Jefferson County, IA right now?
- No major outage is currently reported for Jefferson County, IA. Live coverage depends on whether local utilities report to ODIN.
- Which utilities serve Jefferson County, IA?
- Tracked electric providers include Alliant Energy (Interstate Power & Light).
Outages are tracked at the county level; these ZIP codes fall within Jefferson County.
52533, 52540, 52556, 52557, 52567, 52580, 52635
Electric providers serving this county
From EIA-861 service territory, with official reliability where reported.
| Provider | Official SAIDI (EIA) | Live | Report outage |
|---|---|---|---|
| Alliant Energy (Interstate Power & Light) | — | ODIN ✓ | — |
Machine-readable data: /api/v1/counties/19101 and /api/v1/counties/19101/history. Historical figures derive from the DOE/ORNL EAGLE-I dataset (EAGLE-I tracked roughly 0% of Iowa customers).