Power Outages in Grundy County, IA
As of the latest utility report, no major power outages are reported in Grundy County, IA. In 2025, the average customer here lost power for about 4.3 hours.
Grundy County, IA is served by 2 tracked utilities.
No active power outages are currently reported in Grundy County.
No active NWS alerts for Grundy County right now.
Grundy County has been under 62 National Weather Service alerts recently — most recently a Dense Fog Advisory on September 1, 2026.
- Extreme Heat Warning ×13
- Extreme Heat Watch ×11
- Severe Thunderstorm Warning ×10
- Dense Fog Advisory ×7
- Flood Watch ×5
- Heat Advisory ×4
Latest Grundy County, IA outage updates
A running log of how this outage has changed — updated automatically as utilities report in.
- RESOLVED
Power restored after 8m
- OUTAGE BEGAN
Outage began — 647 customers out (12% of the county)
- RESOLVED
Power restored after 12m
- OUTAGE BEGAN
Outage began — 658 customers out (12% of the county)
Hardest-hit cities in Grundy County
Where this event is concentrated across the county's towns and townships.
Historical reliability
In 2025, the average customer in Grundy County went about 4.3 hours without power. Peak simultaneous outage on record reached 2,341 customers.
Worst year here was 2020 (peak 2,341 customers out) · decade average 5.1 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2015 | 106 | 1,543 | 0.6 |
| 2016 | 130 | 1,056 | 3.2 |
| 2017 | 141 | 867 | 3.9 |
| 2018 | 85 | 1,288 | 1.6 |
| 2019 | 125 | 1,537 | 1.2 |
| 2020 | 115 | 2,341 | 24.5 |
| 2021 | 208 | 1,846 | 3.8 |
| 2022 | 206 | 1,300 | 3.8 |
| 2023 | 178 | 1,671 | 3.6 |
| 2024 | 180 | 650 | 5.6 |
| 2025 | 192 | 613 | 4.3 |
Relatively Low high winds exposure · 5.1 hrs/yr of outages over the last decade.
Power outages in Grundy County: FAQ
- How often does Grundy County, IA lose power?
- Based on EAGLE-I records, Grundy County, IA logged 192 distinct outage events in 2025, averaging about 4.3 hours without power per customer over the year.
- What was the worst power outage in Grundy County, IA?
- The largest tracked outage peaked at 2,341 customers without power, beginning August 10, 2020 and lasting about 12d 4h.
- Is there a power outage in Grundy County, IA right now?
- No major outage is currently reported for Grundy County, IA. Live coverage depends on whether local utilities report to ODIN.
- Which utilities serve Grundy County, IA?
- Tracked electric providers include Alliant Energy (Interstate Power & Light), MIDAMERICAN ENERGY CO.
Outages are tracked at the county level; these ZIP codes fall within Grundy County.
50609, 50621, 50624, 50638, 50642, 50657, 50669, 50673, 50680
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 ✓ | — |
| MIDAMERICAN ENERGY CO | — | ODIN ✓ | — |
Machine-readable data: /api/v1/counties/19075 and /api/v1/counties/19075/history. Historical figures derive from the DOE/ORNL EAGLE-I dataset (EAGLE-I tracked roughly 0% of Iowa customers).