Power Outages in Mercer County, IL
As of October 19, 2026 07:45 UTC, no outages are reported by Ameren Illinois Company and MidAmerican Energy Co in Mercer County, IL. There is no live feed for Ameren. In 2025, the average customer here lost power for about 82.6 hours.
Mercer County, IL is served by 3 tracked utilities.
Cite this data
- URL
- https://massoutage.com/illinois/mercer-county
- As of
- October 19, 2026 07:45 UTC
- Publisher
- MassOutage
MassOutage, "Power Outages in Mercer County, IL", live data as of October 19, 2026 07:45 UTC. https://massoutage.com/illinois/mercer-county
No active outages are reported by Ameren Illinois Company and MidAmerican Energy Co in Mercer County.
No live feed for Ameren: outages in itsservice area won't show here.
60%of this county's ~10,125 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 |
|---|---|---|---|---|---|---|---|---|
| Ameren Illinois Company | Live · county | 0 | 6,081 | 0.0% | - | 0 | - | |
| MidAmerican Energy Co | Live · county | 0 | - | - | - | 0 | - | |
| Ameren | No live feed | can't see | - | - | - | - | - | - |
Ameren Illinois Company and MidAmerican Energy Co 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 Mercer 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 (11)
| ZIP | Power-dependent | Ventilators | O2 concentrators | Home dialysis |
|---|---|---|---|---|
| 61231 | 54 | ≤11 | 40 | ≤11 |
| 61281 | 35 | 0 | 23 | ≤11 |
| 61272 | 23 | 0 | 20 | 0 |
| 61465 | 17 | 0 | 12 | 0 |
| 61442 | 16 | 0 | 12 | ≤11 |
| 61412 | 16 | 0 | 14 | 0 |
| 61260 | 13 | 0 | ≤11 | 0 |
| 61486 | 12 | 0 | ≤11 | ≤11 |
| 61466 | ≤11 | 0 | ≤11 | 0 |
| 61279 | ≤11 | 0 | ≤11 | ≤11 |
| 61263 | ≤11 | 0 | ≤11 | 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 Mercer County or any town and utility in it.
No active NWS alerts for Mercer County right now.
Mercer County has been under 42 National Weather Service alerts recently, most recently a Frost Advisory on October 17, 2026.
- Flood Watch ×19
- Flood Warning ×8
- Special Weather Statement ×5
- Severe Thunderstorm Warning ×4
- Flash Flood Warning ×3
- Frost Advisory ×3
Latest Mercer County, IL outage updates
A running log of how this outage has changed, updated automatically as utilities report in.
- RESOLVED
Power restored after 3h 16m
- OUTAGE BEGAN
Outage began: 248 customers out (2.7% of the county)
Hardest-hit cities in Mercer County
Where this event is concentrated across the county's towns and townships.
Historical reliability
In 2025, the average customer in Mercer County went about 82.6 hours without power. Peak simultaneous outage on record reached 6,907 customers.
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 82.6 hrs.
Worst year here was 2025 (peak 1,938 customers out) · decade average 14.3 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2015 | 248 | 6,308 | 13.6 |
| 2016 | 358 | 1,622 | 3.5 |
| 2017 | 315 | 3,389 | 3.0 |
| 2018 | 560 | 2,202 | 3.8 |
| 2019 | 517 | 6,907 | 11.4 |
| 2020 | 503 | 2,186 | 14.8 |
| 2021 | 445 | 5,250 | 5.8 |
| 2022 | 451 | 902 | 3.7 |
| 2023 | 490 | 1,842 | 4.8 |
| 2024 | 461 | 2,741 | 10.0 |
| 2025 | 456 | 1,938 | 82.6 |
Cost of power in Mercer County
ENERGY & AI DEMAND →Estimated residential electricity price for Mercer 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.
- Ameren Illinois Company16.7¢587,659 cust
- MidAmerican Energy Co10.0¢73,481 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.
Relatively Moderate ice storms exposure · 14.3 hrs/yr of outages over the last decade.
Power outages in Mercer County: FAQ
- How often does Mercer County, IL lose power?
- Based on EAGLE-I records, Mercer County, IL logged 456 distinct outage events in 2025, averaging about 82.6 hours without power per customer over the year.
- What was the worst power outage in Mercer County, IL?
- The largest tracked outage peaked at 6,907 customers without power, beginning February 12, 2019 and lasting about 2d 20h.
- Is there a power outage in Mercer County, IL right now?
- No major outage is currently reported for Mercer County, IL. Live coverage depends on whether local utilities report to ODIN.
- Which utilities serve Mercer County, IL?
- Tracked electric providers include Ameren, Ameren Illinois Company, MidAmerican Energy Co.
Outages are tracked at the county level; these ZIP codes fall within Mercer County.
61231, 61260, 61263, 61272, 61276, 61279, 61281, 61412, 61442, 61465, 61466, 61476, 61486
Electric providers serving this county
From EIA-861 service territory, with official reliability where reported.
| Provider | Official SAIDI (EIA) | Live | Report outage |
|---|---|---|---|
| Ameren Illinois Company | 4.8 hrs | Live · county | - |
| MidAmerican Energy Co | 3.6 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 Illinois customers). Machine-readable data: /api/v1/counties/17131 and /api/v1/counties/17131/history.