County annual report · FIPS 19035
2018 Cherokee County, IA Power Outage Report
In 2018, customers in Cherokee County, IA went without power for an average of 1.7 hours, a total of 10K customer-hours (Iowa average 2.2 hours). That ranks 64th worst of 99 Iowa counties and 2003rd of 2,798 nationally.
Compared with IA, the US and 2017
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Cherokee County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 8, 2018 05:15 | June 8, 2018 06:30 | 1h 15m | 739 | 551 |
| 2 | October 8, 2018 21:15 | October 8, 2018 22:30 | 1h 15m | 577 | 577 |
| 3 | January 1, 2018 00:00 | January 1, 2018 03:00 | 3h | 436 | 659 |
| 4 | July 11, 2018 17:00 | July 11, 2018 21:30 | 4h 30m | 410 | 1,841 |
| 5 | June 8, 2018 16:15 | June 8, 2018 19:30 | 3h 15m | 409 | 1,329 |
| 6 | July 11, 2018 12:30 | July 11, 2018 14:30 | 2h | 409 | 818 |
| 7 | August 5, 2018 08:45 | August 5, 2018 12:00 | 3h 15m | 335 | 1,089 |
| 8 | October 2, 2018 18:45 | October 2, 2018 19:00 | 15m | 233 | 58 |
| 9 | May 25, 2018 20:45 | May 29, 2018 12:45 | 3d 16h | 221 | 539 |
| 10 | January 22, 2018 13:30 | January 22, 2018 14:15 | 45m | 122 | 92 |
Outage episodes by size in 2018: 10 reached 100+ customers, 0 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 Cherokee County reported on EIA Form 861 for 2018, 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 | 2018 | 1.9 hrs | 1.18 | 75 min | 0.96 |
| Iowa Lakes Electric Coop | 2018 | 1.8 hrs | 1.06 | 88 min | 0.98 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Interstate Power and Light Co | - | - | - | - | - |
| North West Rural Electric Coop | - | - | - | - | - |
| Woodbury County Rural E C A | - | - | - | - | - |
| City of Aurelia - (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 89% of Iowa's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 5,968 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. Cherokee County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Cherokee County, IA annual power outage report, 2018, 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/2018/iowa/cherokee-county