Mason County, IL Power Outages
Utilities serving Mason County, Illinois don't yet share live outage data with DOE's ODIN feed. Check your electric company's outage map (listed below) for real-time status.
Mason County on the Illinois outage map
- Normal
- Minor
- Moderate
- Major
- Severe
- Limited data
Current outages
Weather alerts
No active outage-relevant weather alerts from the National Weather Service.
Mason County power outage history
Every significant outage recorded in Mason County since late 2014, with likely causes from NOAA storm reports
Since late 2014, DOE's EAGLE-I monitoring system has recorded 159 significant power outages in Mason County, meaning events that left at least 1% of customers in the dark. The largest (Jun 22, 2016) came when severe thunderstorms left 2,621 customers (54.1% of the county) without power.
From 2018 to 2025, the average customer here lost about 3 hr 5 min of power per year, close to the Illinois average of 2 hr 57 min. That ranks 74th of 102 Illinois counties for outage time, where 1st has the most.
June is the riskiest month: it accounted for 24% of all customer outage time from 2018 to 2025. On 61 days in that period, at least 5% of customers were out at the same time. Outage time in Mason County has held roughly steady recently: about 3 hr 22 min per customer per year in 2022–2025, versus 2 hr 48 min in 2018–2021.
The most recent significant outage on record (Dec 29, 2025) affected 62 customers (1.3%) amid a winter storm.
Worst outages on record
| # | When | Peak customers out | Days | Likely cause (NOAA) |
|---|---|---|---|---|
| 1 | Jun 22, 2016 | 2,621(54.1%) | 1 | Severe thunderstorms |
| 2 | Dec 14, 2023 | 1,475(30.4%) | 1 | No major storm reported |
| 3 | Jun 26, 2019 | 1,166(24.1%) | 1 | Severe thunderstorms |
| 4 | Apr 22, 2015 | 1,007(20.8%) | 1 | No major storm reported |
| 5 | Jul 17–18, 2015 | 994(20.5%) | 2 | Extreme heat |
Hours without power per customer, by year
When outages happen
Source: DOE/ORNL EAGLE-I recorded electricity outages, 2014–2025 (CC BY 4.0), with likely causes from the NOAA NCEI Storm Events Database. EAGLE-I coverage was partial before 2018, so averages use 2018–2025. Peak counts are the highest number of customers out at one time.
Who provides electricity in Mason County?
Electric companies with service territory in Mason County (EIA-861, 2025)
| Utility | Type | Customers (IL) | Avg. outage time / yr | Live data |
|---|---|---|---|---|
| Ameren Illinois | Investor Owned | 1,251,245 | Not reporting | |
| Menard Electric Coop | Cooperative | 11,154 | Not reporting |
Customer counts are each utility's statewide total in Illinois. Source: U.S. Energy Information Administration, Form EIA-861 & Electric Power Annual.
Local outage news
No Mason County outage headlines in the past week.
Nearby counties
Mason County power outage FAQ
Is the power out in Mason County right now?
No outages are currently reported for Mason County by participating utilities. Live coverage is limited here, so If your power is out, report it to your electric company.
Which electric company serves Mason County?
According to EIA-861 service territory data, Ameren Illinois Company, Menard Electric Coop provide electric service in Mason County, Illinois.
What was the worst power outage in Mason County?
The largest outage recorded by DOE's EAGLE-I system since 2014 was Jun 22, 2016. It peaked at 2,621 customers without power (54.1% of the county). NOAA storm reports for that period point to severe thunderstorms.
How often does the power go out in Mason County?
EAGLE-I has recorded 159 significant outages here since late 2014. From 2018 to 2025 the average customer lost about 3 hr 5 min of power per year, and on 61 days at least 5% of customers were out at once.
Cite this page
You may reuse our derived data under CC BY 4.0 with attribution. Underlying government data is public domain.
PowerOutageTracker.com. "Mason County, IL Power Outages." Accessed November 3, 2026. https://poweroutagetracker.com/outages/illinois/mason-county