massoutage

County annual report · FIPS 05071

2024 Johnson County, AR Power Outage Report

In 2024, customers in Johnson County, AR went without power for an average of 4.5 hours, a total of 84K customer-hours (Arkansas average 8.5 hours). That ranks 54th worst of 75 Arkansas counties and 1719th of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
4.5
18,727 customers
Customer-hours out
84K
Peak customers out
3,161
Outages ≥1,000 out
4
0 of 10,000+ · 471 total
Longest outage
3d 21h
began November 4, 2024
Rank in state
54th/75
1719th of 2,990 US

Compared with AR, the US and 2023

Johnson County, AR average hours without power per customer compared with state and national averages, 2024Johnson County 4.5 hours, Arkansas average 8.5 hours, US average 12.6 hours, Johnson County, 2023 4.6 hoursJohnson CountyJohnson County4.5hArkansas averageArkansas average8.5hUS averageUS average12.6hJohnson County, 2023Johnson County, 20234.6h
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Average hours without power per customer in 2024; last bar is this county in 2023.

Month by month

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Johnson County, AR customer-hours without power by month, 2024Jan 1,551, Feb 1,519, Mar 978, Apr 4,838, May 13K, Jun 14K, Jul 857, Aug 25K, Sep 906, Oct 2,849, Nov 14K, Dec 4,495010k20k30k1,551Jan1,519Feb978Mar4,838Apr13KMay14KJun857Jul25KAug906Sep2,849Oct14KNov4,495Dec
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Customer-hours; August was the worst month.

Johnson County year over year

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Johnson County, AR: average hours without power per customer by year2015: 0.0h; 2016: 0.0h; 2017: 0.1h; 2018: 0.5h, coverage 78%; 2019: 9.1h, coverage 83%; 2020: 2.6h, coverage 86%; 2021: 3.4h, coverage 86%; 2022: 3.1h, coverage 86%; 2023: 4.6h; 2024: 4.5h; 2025: 5.2h02.557.5100%50%100%0.0h20150.0h20160.1h20170.5h20189.1h20192.6h20203.4h20213.1h20224.6h20234.5h20245.2h2025
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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 Arkansas customers tracked each year.

Biggest outages in Johnson County, 2024

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1May 20, 2024 10:45May 20, 2024 12:452h3,1615,964
2June 26, 2024 13:45June 27, 2024 15:451d 2h1,69113K
3August 19, 2024 00:45August 21, 2024 21:152d 20h1,12422K
4December 14, 2024 09:15December 14, 2024 12:303h 15m1,1193,635
5February 22, 2024 16:00February 22, 2024 17:451h 45m9281,048
6May 7, 2024 08:45May 8, 2024 16:451d 8h9005,537
7October 31, 2024 09:00October 31, 2024 18:309h 30m8061,421
8April 16, 2024 04:45April 16, 2024 07:453h7792,300
9July 31, 2024 12:45July 31, 2024 13:3045m663497
10December 31, 2024 10:15December 31, 2024 12:152h648520

Outage episodes by size in 2024: 31 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 Johnson County reported on EIA Form 861 for 2024, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Entergy Arkansas LLC20246.2 hrs1.813.8 hrs1.50
Arkansas Valley Elec Coop Corp20246.5 hrs2.782.8 hrs1.94
Oklahoma Gas & Electric Co-----
Clarksville Connected 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 Arkansas's customers in 2024; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 18,727 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. Johnson County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Johnson County, AR 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/arkansas/johnson-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON