County annual report · FIPS 19061
2024 Dubuque County, IA Power Outage Report
In 2024, customers in Dubuque County, IA went without power for an average of 2.4 hours, a total of 111K customer-hours (Iowa average 3.2 hours). That ranks 64th worst of 99 Iowa counties and 2306th 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 Dubuque 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 | June 26, 2024 18:30 | July 30, 2024 23:15 | 34d 4h | 7,974 | 63K |
| 2 | June 18, 2024 22:15 | June 19, 2024 15:15 | 17h | 2,186 | 3,419 |
| 3 | April 16, 2024 18:30 | April 17, 2024 07:45 | 13h 15m | 1,821 | 1,841 |
| 4 | June 14, 2024 13:30 | June 14, 2024 20:00 | 6h 30m | 1,743 | 453 |
| 5 | July 31, 2024 00:15 | August 27, 2024 19:15 | 27d 19h | 1,520 | 4,519 |
| 6 | November 26, 2024 15:00 | November 27, 2024 00:00 | 9h | 1,448 | 736 |
| 7 | May 21, 2024 23:45 | May 22, 2024 23:15 | 23h 30m | 1,444 | 4,134 |
| 8 | September 30, 2024 17:00 | September 30, 2024 19:30 | 2h 30m | 1,311 | 1,314 |
| 9 | January 9, 2024 17:15 | January 10, 2024 05:45 | 12h 30m | 1,239 | 2,908 |
| 10 | January 25, 2024 18:00 | January 25, 2024 18:15 | 15m | 821 | 205 |
Outage episodes by size in 2024: 37 reached 100+ customers, 9 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 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 |
|---|---|---|---|---|---|
| Maquoketa Valley Rrl Elec Coop | 2024 | 2.2 hrs | 1.20 | 71 min | 0.82 |
| 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 n/a of Iowa's customers in 2024; 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, 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/dubuque-county