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Power Outages in Johnson County, IL

Ameren Illinois Company, Egyptian Electric Coop Assn and Southeastern IL Elec Coop, Inc publish only a system-wide total, not county figures. There is no live feed for Ameren and Southern Illinois Elec Coop. In 2025, the average customer here lost power for about 12.3 hours.

Johnson County, IL is served by 5 tracked utilities.

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https://massoutage.com/illinois/johnson-county
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Not available
Publisher
MassOutage

MassOutage, "Power Outages in Johnson County, IL". https://massoutage.com/illinois/johnson-county

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Johnson County, IL
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This county Loading live outagesout
No outages reported (partial view)

Ameren Illinois Company, Egyptian Electric Coop Assn and Southeastern IL Elec Coop, Inc publish no county-level figures.

No live feed for Ameren and Southern Illinois Elec Coop: outages in theirservice area won't show here.

Live status by utility · Johnson County

0.0%of this county's ~6,970 customers are served by utilities with a county-level live feed.

Blind spots

We can't see outages for: Ameren, Southern Illinois Elec Coop. Their customers are not in any number on this page; check their own outage maps.

System-wide total only, no county split: Ameren Illinois Company, Egyptian Electric Coop Assn, Southeastern IL Elec Coop, Inc.

UtilityFeedOutServed% outSmall outagesIncidentsUtility ETRAs of
Ameren Illinois CompanyLive · total onlynot by county------
Egyptian Electric Coop AssnLive · total onlynot by county------
Southeastern IL Elec Coop, IncLive · total onlynot by county------
AmerenNo live feedcan't see------
Southern Illinois Elec CoopNo live feedcan't see------

Electricity-dependent residents

HHS emPOWER · data October 7, 2026

Medicare beneficiaries in Johnson Countywho rely on electricity-dependent medical equipment (ventilators, oxygen concentrators, home dialysis, powered wheelchairs, and more). HHS reports counts of 1–10 as “≤11”. Medicare only, so the full at-risk population is larger.

Power-dependent
213
Oxygen service
90
Dialysis (facility)
55
Home health / hospice
55
By ZIP code (8)
ZIPPower-dependentVentilatorsO2 concentratorsHome dialysis
6299567≤11530
6293943≤1140≤11
6297220016≤11
6291217≤1113≤11
62943120≤110
62985≤110≤110
62967≤110≤110
62923≤11≤11≤110

Emergency managers can request identified beneficiary lists through their state health department via the HHS emPOWER program.

🔔 Alerts for Johnson County, IL

Outage began, grew, restoration estimate changed, restored: by email, Slack, Teams, Discord or signed webhook, for Johnson County or any town and utility in it.

Get alerts for Johnson CountySend updates to your dashboardRSS feed
◢ ACTIVE WEATHER ALERTS · NWS
  • Frost AdvisoryMINOR
Recent NWS alert activity · Johnson County

Johnson County has been under 16 National Weather Service alerts recently, most recently a Frost Advisory on October 18, 2026.

  • Heat Advisory ×12
  • Special Weather Statement ×2
  • Dense Fog Advisory ×1
  • Frost Advisory ×1

Latest Johnson County, IL outage updates

A running log of how this outage has changed, updated automatically as utilities report in.

  1. RESOLVED

    Power restored after 1h 33m

  2. IMPROVING

    Improving: down to 483 customers out

  3. OUTAGE BEGAN

    Outage began: 947 customers out (15% of the county)

Outage trend · Johnson County, IL
0customers out
Data as of Oct 15, 2026 00:30 UTC
Johnson County, IL: customers without power, last 24 hoursPeak 0 customers out; latest 0 as of Oct 15, 2026 00:30 UTC. Each point is the highest reading in its interval.00.30.50.81Oct 146 AM12 PM6 PM
Use the arrow keys to read values.
Times in EDT. Shaded stretches had no reading.

Hardest-hit cities in Johnson County

Where this event is concentrated across the county's towns and townships.

No cities on file for this county

Historical reliability

In 2025, the average customer in Johnson County went about 12.3 hours without power. Peak simultaneous outage on record reached 2,467 customers.

Official state benchmark (EIA 2025)Source: US EIA

The US EIA reports Illinois utilities averaged 2.4 hrs without power per customer (SAIDI) in 2025, a cross-check on our county estimate of 12.3 hrs.

A decade of outages (2015–2025)
avg hrs without power / customer
Johnson County average outage hours per customer by year2015–2025: 2015 0.9h, 2016 1.9h, 2017 2.1h, 2018 4.7h, 2019 3.2h, 2020 2.0h, 2021 2.3h, 2022 1.3h, 2023 3.1h, 2024 10.7h, 2025 12.3h. Highlighted: 2025.0510150.9h20151.9h20162.1h20174.7h20183.2h20192.0h20202.3h20211.3h20223.1h202310.7h202412.3h2025
Use the arrow keys to read values.

Worst year here was 2025 (peak 1,424 customers out) · decade average 4.1 hrs without power per customer/yr.

YearOutage eventsPeak customers outAvg hrs/customer
20151281,2740.9
20161141,2831.9
20172542,4092.1
20183192,4674.7
20193071,2793.2
20203321,2652.0
20212481,2712.3
20222781,2511.3
20232481,2653.1
20242431,87310.7
20253621,42412.3

Cost of power in Johnson County

ENERGY & AI DEMAND →

Estimated residential electricity price for Johnson County, customer-weighted across the utilities serving it (US EIA, 2025). Retail prices aren't published at the county level; this is a derived estimate.

15.5¢/kWh
estimated residential average
▲ 33% since 2015
vs Illinois avg 19.2¢
vs US avg 20.0¢
BY UTILITY · RESIDENTIAL ¢/kWh

Weighted by each utility's residential customer count (utilities report customers at the state level; a per-county share isn't published). Rising retail prices track a national demand surge; see energy & the data-center boom.

Worst recorded outages
STARTEDPEAK OUTDURATION
June 29, 20182,4672d 17h
August 21, 20172,4091h 15m
May 26, 20241,8732d 21h
April 14, 20251,4241h 45m
March 15, 20251,3221d 12h
See the biggest power outages in US history →
Natural hazards & outage risk
ELEVATED

Relatively Moderate ice storms exposure · 4.1 hrs/yr of outages over the last decade.

Ice stormRelatively Moderate
Strong windRelatively Moderate
EarthquakeRelatively Moderate

FEMA rates this county’s social vulnerability very high: outages hit harder where communities are less able to respond and recover.

All hazard rankings →

Power outages in Johnson County: FAQ

How often does Johnson County, IL lose power?
Based on EAGLE-I records, Johnson County, IL logged 362 distinct outage events in 2025, averaging about 12.3 hours without power per customer over the year.
What was the worst power outage in Johnson County, IL?
The largest tracked outage peaked at 2,467 customers without power, beginning June 29, 2018 and lasting about 2d 17h.
Is there a power outage in Johnson County, IL right now?
No major outage is currently reported for Johnson County, IL. Live coverage depends on whether local utilities report to ODIN.
Which utilities serve Johnson County, IL?
Tracked electric providers include Ameren, Ameren Illinois Company, Southeastern IL Elec Coop, Inc.
Nearby counties
Massac CountyPope CountyPulaski CountySaline County
ZIP codes in Johnson County

Outages are tracked at the county level; these ZIP codes fall within Johnson County.

62912, 62923, 62939, 62943, 62967, 62972, 62995

Electric providers serving this county

From EIA-861 service territory, with official reliability where reported.

ProviderOfficial SAIDI (EIA)LiveReport outage
Ameren Illinois Company4.8 hrsLive · total only-
Egyptian Electric Coop Assn12.9 hrsLive · total only-
Southeastern IL Elec Coop, Inc36.9 hrsLive · total only-
Ameren-No live feed-
Southern Illinois Elec Coop-No live feed-

Data from DOE/ORNL ODIN, DOE EAGLE-I, EIA Form 861 (utility reliability), EIA electricity retail prices and FEMA National Risk Index, every source we read. Historical figures derive from the DOE/ORNL EAGLE-I dataset (EAGLE-I tracked roughly 0% of Illinois customers). Machine-readable data: /api/v1/counties/17087 and /api/v1/counties/17087/history.