County annual report · FIPS 19095
2021 Iowa County, IA Power Outage Report
In 2021, customers in Iowa County, IA went without power for an average of 8.5 hours, a total of 60K customer-hours (Iowa average 2.7 hours). That ranks 14th worst of 99 Iowa counties and 888th 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 Iowa 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 02:15 | December 20, 2021 19:00 | 4d 16h | 6,623 | 29K |
| 2 | May 3, 2021 23:00 | May 4, 2021 02:15 | 3h 15m | 4,896 | 3,241 |
| 3 | March 23, 2021 18:45 | March 24, 2021 01:30 | 6h 45m | 751 | 2,300 |
| 4 | October 25, 2021 06:45 | October 25, 2021 10:45 | 4h | 701 | 1,729 |
| 5 | March 19, 2021 23:45 | March 20, 2021 01:45 | 2h | 700 | 1,400 |
| 6 | March 24, 2021 20:30 | March 24, 2021 21:45 | 1h 15m | 698 | 356 |
| 7 | August 12, 2021 08:45 | August 12, 2021 19:45 | 11h | 679 | 5,038 |
| 8 | April 10, 2021 14:15 | April 10, 2021 19:45 | 5h 30m | 461 | 2,523 |
| 9 | October 23, 2021 12:15 | October 23, 2021 16:30 | 4h 15m | 460 | 1,944 |
| 10 | January 31, 2021 12:30 | January 31, 2021 14:15 | 1h 45m | 405 | 670 |
Outage episodes by size in 2021: 23 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 Iowa 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 |
|---|---|---|---|---|---|
| East-Central Iowa Rural Elec Coop | 2021 | 1.7 hrs | 1.30 | 88 min | 1.10 |
| T I P Rural Electric Coop | 2018 | 2.5 hrs | 1.33 | 2.5 hrs | 1.33 |
| Linn County REC | 2021 | 2.3 hrs | 1.59 | 2.3 hrs | 1.59 |
| Farmers Electric Coop - (IA) | 2018 | 77 min | 2.30 | 77 min | 2.30 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Amana Society Service Co | - | - | - | - | - |
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 ÷ 6,965 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. Iowa County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Iowa 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/iowa-county