Power Outages in Cass County, IL
Ameren Illinois Company publishes only a system-wide total, not county figures. There is no live feed for Ameren, Illinois Rural Electric Coop and Menard Electric Coop. In 2025, the average customer here lost power for about 1.8 hours.
Cass County, IL is served by 4 tracked utilities.
Cite this data
- URL
- https://massoutage.com/illinois/cass-county
- As of
- Not available
- Publisher
- MassOutage
MassOutage, "Power Outages in Cass County, IL". https://massoutage.com/illinois/cass-county
Ameren Illinois Company publishes no county-level figures.
No live feed for Ameren, Illinois Rural Electric Coop and Menard Electric Coop: outages in theirservice area won't show here.
0.0%of this county's ~8,149 customers are served by utilities with a county-level live feed.
We can't see outages for: Ameren, Illinois Rural Electric Coop, Menard Electric Coop. Their customers are not in any number on this page; check their own outage maps.
System-wide total only, no county split: Ameren Illinois Company.
| Utility | Feed | Out | Served | % out | Small outages | Incidents | Utility ETR | As of |
|---|---|---|---|---|---|---|---|---|
| Ameren Illinois Company | Live · total only | not by county | - | - | - | - | - | - |
| Ameren | No live feed | can't see | - | - | - | - | - | - |
| Illinois Rural Electric Coop | No live feed | can't see | - | - | - | - | - | - |
| Menard Electric Coop | No live feed | can't see | - | - | - | - | - | - |
Electricity-dependent residents
HHS emPOWER · data October 7, 2026Medicare beneficiaries in Cass 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 (5)
| ZIP | Power-dependent | Ventilators | O2 concentrators | Home dialysis |
|---|---|---|---|---|
| 62618 | 73 | ≤11 | 56 | ≤11 |
| 62691 | 27 | 0 | 25 | 0 |
| 62612 | 20 | 0 | 13 | ≤11 |
| 62627 | 18 | 0 | ≤11 | 0 |
| 62611 | 17 | 0 | 14 | 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 Cass County or any town and utility in it.
- Frost AdvisoryMINOR
Cass County has been under 5 National Weather Service alerts recently, most recently a Frost Advisory on October 17, 2026.
- Special Weather Statement ×3
- Frost Advisory ×2
Hardest-hit cities in Cass County
Where this event is concentrated across the county's towns and townships.
Historical reliability
In 2025, the average customer in Cass County went about 1.8 hours without power. Peak simultaneous outage on record reached 4,486 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 1.8 hrs.
Worst year here was 2023 (peak 4,486 customers out) · decade average 1.2 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2015 | 154 | 1,523 | 1.3 |
| 2016 | 193 | 1,930 | 1.3 |
| 2017 | 94 | 336 | 0.5 |
| 2018 | 165 | 1,631 | 1.0 |
| 2019 | 176 | 1,258 | 0.9 |
| 2020 | 186 | 1,248 | 0.9 |
| 2021 | 160 | 1,237 | 1.3 |
| 2022 | 163 | 769 | 0.9 |
| 2023 | 174 | 4,486 | 2.1 |
| 2024 | 169 | 1,919 | 1.4 |
| 2025 | 154 | 785 | 1.8 |
Cost of power in Cass County
ENERGY & AI DEMAND →Estimated residential electricity price for Cass 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
- Menard Electric Coop19.4¢9,036 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 high winds exposure · 1.2 hrs/yr of outages over the last decade.
Power outages in Cass County: FAQ
- How often does Cass County, IL lose power?
- Based on EAGLE-I records, Cass County, IL logged 154 distinct outage events in 2025, averaging about 1.8 hours without power per customer over the year.
- What was the worst power outage in Cass County, IL?
- The largest tracked outage peaked at 4,486 customers without power, beginning April 10, 2023 and lasting about 2h 30m.
- Is there a power outage in Cass County, IL right now?
- No major outage is currently reported for Cass County, IL. Live coverage depends on whether local utilities report to ODIN.
- Which utilities serve Cass County, IL?
- Tracked electric providers include Ameren, Ameren Illinois Company.
Outages are tracked at the county level; these ZIP codes fall within Cass County.
62611, 62612, 62618, 62622, 62627, 62691
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 · total only | - |
| Menard Electric Coop | 3.1 hrs | No live feed | - |
| Ameren | - | No live feed | - |
| Illinois Rural Electric Coop | - | 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/17017 and /api/v1/counties/17017/history.