Power Outages in St. Charles County, MO
As of October 19, 2026 04:40 UTC, no outages are reported by Union Electric Co - (MO), Cuivre River Electric Coop Inc and SEMO Electric Cooperative in St. Charles County, MO. There is no live feed for Ameren. In 2025, the average customer here lost power for about 2.3 hours.
St. Charles County, MO is served by 4 tracked utilities.
Cite this data
- URL
- https://massoutage.com/missouri/st-charles-county
- As of
- October 19, 2026 04:40 UTC
- Publisher
- MassOutage
MassOutage, "Power Outages in St. Charles County, MO", live data as of October 19, 2026 04:40 UTC. https://massoutage.com/missouri/st-charles-county
No active outages are reported by Union Electric Co - (MO), Cuivre River Electric Coop Inc and SEMO Electric Cooperative in St. Charles County.
No live feed for Ameren: outages in itsservice area won't show here.
78%of this county's ~249,910 customers are served by utilities with a county-level live feed.
We can't see outages for: Ameren. Their customers are not in any number on this page; check their own outage maps.
| Utility | Feed | Out | Served | % out | Small outages | Incidents | Utility ETR | As of |
|---|---|---|---|---|---|---|---|---|
| Union Electric Co - (MO) | Live · county | 0 | 150,676 | 0.0% | - | 0 | - | |
| Cuivre River Electric Coop Inc | Live · county | 0 | 45,210 | 0.0% | - | - | - | |
| SEMO Electric Cooperative | Live · county | 0 | 1 | 0.0% | - | - | - | |
| Ameren | No live feed | can't see | - | - | - | - | - | - |
Union Electric Co - (MO), Cuivre River Electric Coop Inc and SEMO Electric Cooperative reportevery town in the county on each poll, so 0 out is a real all-clear. ETRs are the utility's own estimates.
Electricity-dependent residents
HHS emPOWER · data October 7, 2026Medicare beneficiaries in St. Charles 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.
By ZIP code (13)
| ZIP | Power-dependent | Ventilators | O2 concentrators | Home dialysis |
|---|---|---|---|---|
| 63376 | 540 | 16 | 384 | 14 |
| 63301 | 400 | ≤11 | 278 | ≤11 |
| 63366 | 390 | ≤11 | 277 | ≤11 |
| 63303 | 328 | ≤11 | 221 | ≤11 |
| 63385 | 292 | ≤11 | 205 | ≤11 |
| 63304 | 266 | ≤11 | 175 | ≤11 |
| 63368 | 238 | ≤11 | 153 | ≤11 |
| 63367 | 172 | ≤11 | 111 | ≤11 |
| 63348 | 40 | ≤11 | 24 | ≤11 |
| 63341 | 22 | ≤11 | 13 | ≤11 |
| 63386 | ≤11 | 0 | ≤11 | 0 |
| 63373 | ≤11 | 0 | ≤11 | 0 |
| 63332 | ≤11 | ≤11 | ≤11 | ≤11 |
Emergency managers can request identified beneficiary lists through their state health department via the HHS emPOWER program.
Outage began, grew, restoration estimate changed, restored: by email, Slack, Teams, Discord or signed webhook, for St. Charles County or any town and utility in it.
No active NWS alerts for St. Charles County right now.
St. Charles County has been under 17 National Weather Service alerts recently, most recently a Frost Advisory on October 18, 2026.
- Heat Advisory ×10
- Flood Advisory ×3
- Severe Thunderstorm Warning ×2
- Air Quality Alert ×1
- Frost Advisory ×1
Latest St. Charles County, MO outage updates
A running log of how this outage has changed, updated automatically as utilities report in.
- RESOLVED
Power restored after 30m
- OUTAGE BEGAN
Outage began: 579 customers out (0.2% of the county)
- RESOLVED
Power restored after 15m
- OUTAGE BEGAN
Outage began: 821 customers out (0.4% of the county)
- RESOLVED
Power restored after 1h 15m
- RESTORATION ETA
Restoration now estimated September 18, 2026
- RESTORATION ETA
Restoration now estimated September 18, 2026
- IMPROVING
Improving: down to 804 customers out
Hardest-hit cities in St. Charles County
Where this event is concentrated across the county's towns and townships.
- O'Fallonno outage reported
- St. Charlesno outage reported
- St. Petersno outage reported
- Wentzvilleno outage reported
Historical reliability
In 2025, the average customer in St. Charles County went about 2.3 hours without power. Peak simultaneous outage on record reached 25,716 customers.
The US EIA reports Missouri utilities averaged 6.3 hrs without power per customer (SAIDI) in 2025, a cross-check on our county estimate of 2.3 hrs.
Worst year here was 2021 (peak 25,716 customers out) · decade average 1.8 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2015 | 762 | 7,333 | 0.9 |
| 2016 | 912 | 12,665 | 1.3 |
| 2017 | 715 | 6,563 | 1.2 |
| 2018 | 822 | 7,973 | 1.1 |
| 2019 | 762 | 9,660 | 1.8 |
| 2020 | 820 | 22,911 | 1.9 |
| 2021 | 767 | 25,716 | 3.6 |
| 2022 | 888 | 11,021 | 1.6 |
| 2023 | 793 | 24,562 | 3.2 |
| 2024 | 916 | 6,834 | 1.2 |
| 2025 | 695 | 9,269 | 2.3 |
Cost of power in St. Charles County
ENERGY & AI DEMAND →Estimated residential electricity price for St. Charles 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.
- Union Electric Co - (MO)13.3¢1,100,654 cust
- Cuivre River Electric Coop Inc11.4¢74,261 cust
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.
Very High high winds exposure · 1.8 hrs/yr of outages over the last decade.
Power outages in St. Charles County: FAQ
- How often does St. Charles County, MO lose power?
- Based on EAGLE-I records, St. Charles County, MO logged 695 distinct outage events in 2025, averaging about 2.3 hours without power per customer over the year.
- What was the worst power outage in St. Charles County, MO?
- The largest tracked outage peaked at 25,716 customers without power, beginning June 19, 2021 and lasting about 3d 19h.
- Is there a power outage in St. Charles County, MO right now?
- No major outage is currently reported for St. Charles County, MO. Live coverage depends on whether local utilities report to ODIN.
- Which utilities serve St. Charles County, MO?
- Tracked electric providers include Ameren, Cuivre River Electric Coop Inc, Union Electric Co - (MO).
O'Fallon, St. Charles, St. Peters, Wentzville. Outage counts for these communities are reported at the St. Charles County level shown above.
Outages are tracked at the county level; these ZIP codes fall within St. Charles County.
63301, 63303, 63304, 63332, 63341, 63348, 63365, 63366, 63367, 63368, 63373, 63376, 63385, 63386
Electric providers serving this county
From EIA-861 service territory, with official reliability where reported.
| Provider | Official SAIDI (EIA) | Live | Report outage |
|---|---|---|---|
| Union Electric Co - (MO) | 9.9 hrs | Live · county | - |
| Cuivre River Electric Coop Inc | 2.3 hrs | Live · county | - |
| Ameren | - | 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 Missouri customers). Machine-readable data: /api/v1/counties/29183 and /api/v1/counties/29183/history.