County annual report · FIPS 19153
2024 Polk County, IA Power Outage Report
In 2024, customers in Polk County, IA went without power for an average of 2.9 hours, a total of 830K customer-hours (Iowa average 3.2 hours). That ranks 55th worst of 99 Iowa counties and 2135th of 2,990 nationally.
Compared with IA, the US and 2023
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Polk County, 2024
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 20, 2024 23:30 | May 24, 2024 00:15 | 3d | 26,999 | 220K |
| 2 | May 24, 2024 10:15 | May 26, 2024 00:45 | 1d 14h | 26,759 | 92K |
| 3 | July 31, 2024 07:15 | August 2, 2024 06:00 | 1d 22h | 15,730 | 85K |
| 4 | July 15, 2024 11:30 | July 18, 2024 01:30 | 2d 14h | 11,726 | 102K |
| 5 | April 26, 2024 21:45 | April 30, 2024 08:00 | 3d 10h | 11,614 | 37K |
| 6 | July 12, 2024 15:00 | July 12, 2024 21:15 | 6h 15m | 10,851 | 2,751 |
| 7 | July 30, 2024 04:45 | July 31, 2024 03:30 | 22h 45m | 9,659 | 40K |
| 8 | April 16, 2024 12:15 | April 17, 2024 21:45 | 1d 9h | 5,850 | 8,036 |
| 9 | January 3, 2024 14:30 | January 4, 2024 01:00 | 10h 30m | 5,709 | 4,071 |
| 10 | December 28, 2024 07:30 | December 28, 2024 10:00 | 2h 30m | 4,630 | 3,484 |
Outage episodes by size in 2024: 132 reached 100+ customers, 56 reached 1,000+ customers, 6 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Polk County reported on EIA Form 861 for 2024, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| MidAmerican Energy Co | 2024 | 5.5 hrs | 1.42 | 1.7 hrs | 0.94 |
| Consumers Energy Coop - (IA) | 2024 | 8.2 hrs | 1.54 | 1.6 hrs | 1.00 |
| Interstate Power and Light Co | - | - | - | - | - |
| Midland Power Coop | - | - | - | - | - |
| Waverly Municipal Elec Utility | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Iowa's customers in 2024; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 287,095 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. Polk County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Polk County, IA annual power outage report, 2024, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2024/iowa/polk-county