St. Charles County, MO Power Outages
Utilities serving St. Charles County, Missouri 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.
St. Charles County on the Missouri outage map
- Normal
- Minor
- Moderate
- Major
- Severe
- Limited data
Current outages
Weather alerts
No active outage-relevant weather alerts from the National Weather Service.
St. Charles County power outage history
Every significant outage recorded in St. Charles County since late 2014, with likely causes from NOAA storm reports
Since late 2014, DOE's EAGLE-I monitoring system has recorded 149 significant power outages in St. Charles County, meaning events that left at least 1% of customers in the dark. The largest (Jun 19–21, 2021) came when severe thunderstorms left 25,716 customers (14.1% of the county) without power.
From 2018 to 2025, the average customer here lost about 2 hr 5 min of power per year, less than the Missouri average of 4 hr 34 min. That ranks 94th of 115 Missouri counties for outage time, where 1st has the most.
July is the riskiest month: it accounted for 25% of all customer outage time from 2018 to 2025. On 15 days in that period, at least 5% of customers were out at the same time. Outage time in St. Charles County has held roughly steady recently: about 2 hr 5 min per customer per year in 2022–2025, versus 2 hr 6 min in 2018–2021.
The most recent significant outage on record (Dec 14, 2025) affected 2,780 customers (1.5%).
Worst outages on record
| # | When | Peak customers out | Days | Likely cause (NOAA) |
|---|---|---|---|---|
| 1 | Jun 19–21, 2021 | 25,716(14.1%) | 3 | Severe thunderstorms |
| 2 | Jul 29–31, 2023 | 24,562(13.5%) | 3 | Severe thunderstorms |
| 3 | Apr 9, 2020 | 22,911(12.6%) | 1 | Severe thunderstorms |
| 4 | Aug 9–11, 2020 | 16,968(9.3%) | 3 | Flooding |
| 5 | Apr 26–27, 2016 | 12,665(7%) | 2 | Severe thunderstorms |
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 St. Charles County?
Electric companies with service territory in St. Charles County (EIA-861, 2025)
| Utility | Type | Customers (MO) | Avg. outage time / yr | Live data |
|---|---|---|---|---|
| Ameren Missouri | Investor Owned | 1,284,472 | Not reporting | |
| Cuivre River Electric Coop Inc | Cooperative | 75,876 | Not reporting |
Customer counts are each utility's statewide total in Missouri. Source: U.S. Energy Information Administration, Form EIA-861 & Electric Power Annual.
Local outage news
No St. Charles County outage headlines in the past week.
Cities in St. Charles County
O'Fallon, St. Charles, St. Peters, Wentzville, Lake St. Louis, Dardenne Prairie
Nearby counties
St. Charles County power outage FAQ
Is the power out in St. Charles County right now?
No outages are currently reported for St. Charles 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 St. Charles County?
According to EIA-861 service territory data, Union Electric Co - (MO), Cuivre River Electric Coop Inc provide electric service in St. Charles County, Missouri.
What was the worst power outage in St. Charles County?
The largest outage recorded by DOE's EAGLE-I system since 2014 was Jun 19–21, 2021. It peaked at 25,716 customers without power (14.1% of the county). NOAA storm reports for that period point to severe thunderstorms.
How often does the power go out in St. Charles County?
EAGLE-I has recorded 149 significant outages here since late 2014. From 2018 to 2025 the average customer lost about 2 hr 5 min of power per year, and on 15 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. "St. Charles County, MO Power Outages." Accessed November 2, 2026. https://poweroutagetracker.com/outages/missouri/st-charles-county