Power Outages in St. Louis County, MO
As of October 19, 2026 05:50 UTC, about 63 customers are without power in St. Louis County, MO across 5 reported incidents. There is no live feed for Ameren, so outages in their service area aren't counted. In 2025, the average customer here lost power for about 9.1 hours.
St. Louis County, MO is served by 4 tracked utilities.
Cite this data
- URL
- https://massoutage.com/missouri/st-louis-county
- As of
- October 19, 2026 05:50 UTC
- Publisher
- MassOutage
MassOutage, "Power Outages in St. Louis County, MO", live data as of October 19, 2026 05:50 UTC. https://massoutage.com/missouri/st-louis-county
Not counted: no live feed for Ameren.
80%of this county's ~597,249 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 | 63 | 476,564 | 0.0% | - | 5 | - | |
| Webster Electric Coop | Live · county | 0 | 15 | 0.0% | - | - | - | |
| City of Kirkwood - (MO) | Live · county | 0 | - | - | - | 0 | - | |
| Ameren | No live feed | can't see | - | - | - | - | - | - |
Union Electric Co - (MO), Webster Electric Coop and City of Kirkwood - (MO) 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. Louis 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 (42)
| ZIP | Power-dependent | Ventilators | O2 concentrators | Home dialysis |
|---|---|---|---|---|
| 63129 | 390 | 12 | 266 | ≤11 |
| 63136 | 371 | 16 | 244 | 13 |
| 63123 | 368 | ≤11 | 267 | ≤11 |
| 63031 | 333 | ≤11 | 217 | 14 |
| 63017 | 311 | 12 | 192 | ≤11 |
| 63033 | 299 | 16 | 193 | 15 |
| 63021 | 278 | 12 | 169 | ≤11 |
| 63125 | 258 | ≤11 | 196 | ≤11 |
| 63128 | 245 | ≤11 | 157 | ≤11 |
| 63011 | 242 | ≤11 | 160 | ≤11 |
| 63114 | 234 | ≤11 | 167 | ≤11 |
| 63146 | 229 | 12 | 133 | ≤11 |
| 63122 | 226 | ≤11 | 141 | ≤11 |
| 63119 | 206 | ≤11 | 126 | ≤11 |
| 63121 | 168 | ≤11 | 113 | ≤11 |
| 63137 | 143 | ≤11 | 87 | ≤11 |
| 63138 | 135 | ≤11 | 75 | ≤11 |
| 63034 | 127 | ≤11 | 71 | ≤11 |
| 63130 | 125 | ≤11 | 79 | ≤11 |
| 63043 | 123 | ≤11 | 74 | ≤11 |
| 63042 | 121 | ≤11 | 75 | ≤11 |
| 63135 | 114 | ≤11 | 74 | ≤11 |
| 63074 | 113 | ≤11 | 77 | ≤11 |
| 63141 | 99 | ≤11 | 52 | 0 |
| 63134 | 99 | ≤11 | 64 | ≤11 |
| 63025 | 99 | ≤11 | 69 | ≤11 |
| 63126 | 93 | ≤11 | 68 | ≤11 |
| 63044 | 85 | ≤11 | 51 | ≤11 |
| 63124 | 79 | ≤11 | 49 | ≤11 |
| 63132 | 73 | ≤11 | 43 | ≤11 |
| 63131 | 68 | ≤11 | 38 | ≤11 |
| 63005 | 68 | ≤11 | 36 | 0 |
| 63133 | 62 | ≤11 | 43 | ≤11 |
| 63105 | 55 | ≤11 | 21 | ≤11 |
| 63127 | 48 | 0 | 36 | 0 |
| 63088 | 47 | ≤11 | 33 | ≤11 |
| 63038 | 41 | 0 | 24 | ≤11 |
| 63143 | 40 | ≤11 | 31 | ≤11 |
| 63040 | 39 | ≤11 | 24 | ≤11 |
| 63117 | 38 | ≤11 | 23 | ≤11 |
| 63144 | 37 | ≤11 | 20 | 0 |
| 63140 | ≤11 | 0 | 0 | 0 |
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. Louis County or any town and utility in it.
No active NWS alerts for St. Louis County right now.
St. Louis County has been under 12 National Weather Service alerts recently, most recently a Frost Advisory on October 18, 2026.
- Heat Advisory ×10
- Air Quality Alert ×1
- Frost Advisory ×1
Latest St. Louis County, MO outage updates
A running log of how this outage has changed, updated automatically as utilities report in.
- RESOLVED
Power restored after 10m
- OUTAGE BEGAN
Outage began: 1,559 customers out (0.3% of the county)
- RESOLVED
Power restored after 10m
- OUTAGE BEGAN
Outage began: 924 customers out (0.2% of the county)
- RESOLVED
Power restored after 2h 56m
- IMPROVING
Improving: down to 370 customers out
- OUTAGE BEGAN
Outage began: 1,161 customers out (0.2% of the county)
- RESOLVED
Power restored after 1h
Hardest-hit cities in St. Louis County
Where this event is concentrated across the county's towns and townships.
Live outage counts are tracked at the county level; a city-by-city split within St. Louis Countyisn't available yet.
Historical reliability
In 2025, the average customer in St. Louis County went about 9.1 hours without power. Peak simultaneous outage on record reached 83,830 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 9.1 hrs.
Worst year here was 2025 (peak 83,830 customers out) · decade average 3.0 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2015 | 261 | 8,944 | 1.9 |
| 2016 | 345 | 67,070 | 6.3 |
| 2017 | 307 | 8,686 | 0.6 |
| 2018 | 479 | 32,214 | 2.9 |
| 2019 | 371 | 28,721 | 2.9 |
| 2020 | 249 | 8,652 | 0.6 |
| 2021 | 45 | 6,674 | 0.1 |
| 2025 | 158 | 83,830 | 9.1 |
Cost of power in St. Louis County
ENERGY & AI DEMAND →Estimated residential electricity price for St. Louis 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
- City of Kirkwood - (MO)14.5¢9,522 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 ice storms exposure · 3.0 hrs/yr of outages over the last decade.
Power outages in St. Louis County: FAQ
- How often does St. Louis County, MO lose power?
- Based on EAGLE-I records, St. Louis County, MO logged 158 distinct outage events in 2025, averaging about 9.1 hours without power per customer over the year.
- What was the worst power outage in St. Louis County, MO?
- The largest tracked outage peaked at 83,830 customers without power, beginning March 12, 2025 and lasting about 7d 16h.
- Is there a power outage in St. Louis County, MO right now?
- Yes, about 63 customers are currently without power across 5 reported incident(s).
- Which utilities serve St. Louis County, MO?
- Tracked electric providers include Ameren, City of Kirkwood - (MO), Union Electric Co - (MO).
Florissant, Chesterfield. Outage counts for these communities are reported at the St. Louis County level shown above.
Outages are tracked at the county level; these ZIP codes fall within St. Louis County (showing 40 of 43).
63005, 63011, 63017, 63021, 63025, 63031, 63033, 63034, 63038, 63040, 63042, 63043, 63044, 63045, 63074, 63088, 63105, 63114, 63117, 63119, 63121, 63122, 63123, 63124, 63125, 63126, 63127, 63128, 63129, 63130, 63131, 63132, 63133, 63134, 63135, 63136, 63137, 63138, 63140, 63141
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 | - |
| City of Kirkwood - (MO) | 2.9 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/29189 and /api/v1/counties/29189/history. Live data as of .