massoutage

County annual report · FIPS 17039

2021 De Witt County, IL Power Outage Report

In 2021, customers in De Witt County, IL went without power for an average of 13.4 hours, a total of 89K customer-hours (Illinois average 2.3 hours). That ranks 2nd worst of 102 Illinois counties and 623rd of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
13.4
6,665 customers
Customer-hours out
89K
Peak customers out
3,006
Outages ≥1,000 out
4
0 of 10,000+ · 362 total
Longest outage
7d 6h
began May 13, 2021
Rank in state
2nd/102
623rd of 2,974 US

Compared with IL, the US and 2020

De Witt County, IL average hours without power per customer compared with state and national averages, 2021De Witt County 13.4 hours, Illinois average 2.3 hours, US average 8.9 hours, De Witt County, 2020 4.3 hoursDe Witt CountyDe Witt County13.4hIllinois averageIllinois average2.3hUS averageUS average8.9hDe Witt County, 2020De Witt County, 20204.3h
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Average hours without power per customer in 2021; last bar is this county in 2020.

Month by month

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De Witt County, IL customer-hours without power by month, 2021Jan 50K, Feb 511, Mar 11K, Apr 1,855, May 3,296, Jun 3,346, Jul 787, Aug 1,990, Sep 1,679, Oct 2,910, Nov 4,068, Dec 7,872020k40k60k50KJan511Feb11KMar1,855Apr3,296May3,346Jun787Jul1,990Aug1,679Sep2,910Oct4,068Nov7,872Dec
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Customer-hours; January was the worst month.

De Witt County year over year

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De Witt County, IL: average hours without power per customer by year2015: 2.3h; 2016: 2.4h; 2017: 6.0h; 2018: 3.1h, coverage 92%; 2019: 3.5h, coverage 99%; 2020: 4.3h, coverage 94%; 2021: 13.4h, coverage 98%; 2022: 5.9h, coverage 98%; 2023: 39.1h; 2024: 5.4h; 2025: 11.6h0102030400%50%100%2.3h20152.4h20166.0h20173.1h20183.5h20194.3h202013.4h20215.9h202239.1h20235.4h202411.6h2025
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Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Coverage line is EAGLE-I's share of Illinois customers tracked each year.

Biggest outages in De Witt County, 2021

The 10 outage episodes with the most customers out at once. Times are UTC.

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#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1January 1, 2021 15:15January 7, 2021 18:156d 3h3,00647K
2December 11, 2021 03:00December 12, 2021 20:451d 17h1,4766,136
3March 18, 2021 14:15March 19, 2021 04:4514h 30m1,2829,252
4January 25, 2021 22:45January 26, 2021 05:006h 15m1,0522,765
5October 1, 2021 19:30October 1, 2021 21:001h 30m936703
6May 9, 2021 11:15May 9, 2021 18:157h9292,186
7August 2, 2021 05:15August 2, 2021 06:0045m926695
8November 15, 2021 08:00November 15, 2021 11:153h 15m9222,996
9April 30, 2021 17:00April 30, 2021 19:452h 45m8801,350
10September 8, 2021 13:45September 8, 2021 14:1530m800221

Outage episodes by size in 2021: 30 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 De Witt County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Ameren Illinois Company20213.2 hrs1.112.0 hrs0.88
Corn Belt Energy Corporation202112.3 hrs6.643.7 hrs4.71
Ameren-----
City of Farmer City - (IL)-----

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 ÷ 6,665 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. De Witt County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), De Witt 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/de-witt-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON
De Witt County by year:2025202420232022202020192018201720162015
Live outages in De Witt County2021 Illinois report2021 US report