County annual report · FIPS 19091
2021 Humboldt County, IA Power Outage Report
In 2021, customers in Humboldt County, IA went without power for an average of 6.0 hours, a total of 21K customer-hours (Iowa average 2.7 hours). That ranks 24th worst of 99 Iowa counties and 1149th of 2,974 nationally.
Compared with IA, the US and 2020
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Humboldt County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 16, 2021 00:15 | December 17, 2021 20:45 | 1d 20h | 2,848 | 13K |
| 2 | June 24, 2021 11:30 | June 24, 2021 12:45 | 1h 15m | 2,167 | 543 |
| 3 | February 26, 2021 21:30 | February 26, 2021 22:45 | 1h 15m | 958 | 480 |
| 4 | June 21, 2021 02:30 | June 21, 2021 03:15 | 45m | 659 | 494 |
| 5 | May 31, 2021 09:00 | May 31, 2021 12:45 | 3h 45m | 394 | 854 |
| 6 | June 10, 2021 12:15 | June 10, 2021 13:15 | 1h | 323 | 164 |
| 7 | December 10, 2021 22:00 | December 11, 2021 18:15 | 20h 15m | 229 | 2,272 |
| 8 | February 16, 2021 14:00 | February 16, 2021 16:45 | 2h 45m | 228 | 300 |
| 9 | October 11, 2021 19:15 | October 11, 2021 20:45 | 1h 30m | 197 | 294 |
| 10 | December 17, 2021 22:15 | December 18, 2021 02:45 | 4h 30m | 196 | 382 |
Outage episodes by size in 2021: 13 reached 100+ customers, 2 reached 1,000+ customers, 0 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 Humboldt County reported on EIA Form 861 for 2021, 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 | 2021 | 1.9 hrs | 1.04 | 75 min | 0.74 |
| Midland Power Coop | - | - | - | - | - |
| Prairie Energy Coop | - | - | - | - | - |
| Boone Valley Electric Coop | - | - | - | - | - |
| City of West Bend | - | - | - | - | - |
| City of Livermore- (IA) | - | - | - | - | - |
| City of Renwick - (IA) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 91% of Iowa's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 3,507 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. Humboldt County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Humboldt County, IA annual power outage report, 2021, 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/2021/iowa/humboldt-county