County annual report · FIPS 17077
2021 Jackson County, IL Power Outage Report
In 2021, customers in Jackson County, IL went without power for an average of 3.3 hours, a total of 88K customer-hours (Illinois average 2.3 hours). That ranks 42nd worst of 102 Illinois counties and 1746th of 2,974 nationally.
Compared with IL, the US and 2020
Coverage line is EAGLE-I's share of Illinois customers tracked each year.
Biggest outages in Jackson 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 | June 2, 2021 02:00 | June 2, 2021 15:45 | 13h 45m | 2,789 | 32K |
| 2 | July 10, 2021 21:30 | July 11, 2021 19:15 | 21h 45m | 1,633 | 5,347 |
| 3 | December 10, 2021 16:45 | December 11, 2021 19:45 | 1d 3h | 1,558 | 5,353 |
| 4 | August 14, 2021 00:15 | August 14, 2021 18:15 | 18h | 1,237 | 6,128 |
| 5 | February 14, 2021 07:15 | February 14, 2021 15:00 | 7h 45m | 889 | 2,950 |
| 6 | July 9, 2021 13:15 | July 9, 2021 18:15 | 5h | 884 | 748 |
| 7 | September 11, 2021 12:15 | September 11, 2021 20:15 | 8h | 766 | 4,020 |
| 8 | July 8, 2021 12:45 | July 8, 2021 13:00 | 15m | 765 | 191 |
| 9 | June 5, 2021 23:30 | June 6, 2021 02:45 | 3h 15m | 726 | 1,488 |
| 10 | August 12, 2021 10:45 | August 12, 2021 13:45 | 3h | 632 | 1,110 |
Outage episodes by size in 2021: 39 reached 100+ customers, 4 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 Jackson 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 |
|---|---|---|---|---|---|
| Ameren Illinois Company | 2021 | 3.2 hrs | 1.11 | 2.0 hrs | 0.88 |
| Ameren | - | - | - | - | - |
| Egyptian Electric Coop Assn | - | - | - | - | - |
| Southern Illinois Elec Coop | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 98% of Illinois's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 26,616 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. Jackson County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Jackson County, IL 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/illinois/jackson-county