County annual report · FIPS 19061
2019 Dubuque County, IA Power Outage Report
In 2019, customers in Dubuque County, IA went without power for an average of 1.8 hours, a total of 83K customer-hours (Iowa average 2.2 hours). That ranks 67th worst of 99 Iowa counties and 2144th of 2,945 nationally.
Compared with IA, the US and 2018
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Dubuque County, 2019
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 30, 2019 22:30 | July 8, 2019 02:15 | 7d 3h | 8,367 | 53K |
| 2 | August 15, 2019 21:45 | August 16, 2019 02:00 | 4h 15m | 1,846 | 597 |
| 3 | June 19, 2019 14:45 | June 19, 2019 17:30 | 2h 45m | 1,347 | 1,355 |
| 4 | June 4, 2019 10:45 | June 4, 2019 12:15 | 1h 30m | 1,298 | 1,623 |
| 5 | September 12, 2019 06:30 | September 12, 2019 08:00 | 1h 30m | 1,289 | 1,934 |
| 6 | April 9, 2019 00:00 | April 9, 2019 13:00 | 13h | 1,243 | 339 |
| 7 | June 26, 2019 21:00 | June 26, 2019 23:30 | 2h 30m | 1,175 | 351 |
| 8 | July 8, 2019 04:00 | July 9, 2019 20:45 | 1d 16h | 942 | 633 |
| 9 | September 7, 2019 14:45 | September 11, 2019 18:30 | 4d 3h | 815 | 1,198 |
| 10 | May 3, 2019 15:15 | May 3, 2019 19:15 | 4h | 803 | 273 |
Outage episodes by size in 2019: 45 reached 100+ customers, 7 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 Dubuque County reported on EIA Form 861 for 2019, 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 |
|---|---|---|---|---|---|
| Maquoketa Valley Rrl Elec Coop | 2018 | 52 min | 0.96 | 50 min | 0.93 |
| Allamakee-Clayton El Coop, Inc | 2018 | 1.5 hrs | 0.73 | 1.5 hrs | 0.73 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Cascade Municipal Utilities | - | - | - | - | - |
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 2019; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 46,546 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. Dubuque County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Dubuque County, IA annual power outage report, 2019, 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/2019/iowa/dubuque-county