Power Outages in Sac County, IA
Calhoun County Elec Coop Assn, Iowa Lakes Electric Coop, MidAmerican Energy Co, North West Rural Electric Coop, Raccoon Valley Electric Cooperative and Western Iowa Power Coop publish only a system-wide total, not county figures. There is no live feed for City of Auburn - (IA), City of Lake View - (IA) and City of Wall Lake - (IA). In 2025, the average customer here lost power for about 17.8 hours.
Sac County, IA is served by 9 tracked utilities.
Cite this data
- URL
- https://massoutage.com/iowa/sac-county
- As of
- Not available
- Publisher
- MassOutage
MassOutage, "Power Outages in Sac County, IA". https://massoutage.com/iowa/sac-county
Calhoun County Elec Coop Assn, Iowa Lakes Electric Coop, MidAmerican Energy Co, North West Rural Electric Coop, Raccoon Valley Electric Cooperative and Western Iowa Power Coop publish no county-level figures.
No live feed for City of Auburn - (IA), City of Lake View - (IA) and City of Wall Lake - (IA): outages in theirservice area won't show here.
0.0%of this county's ~5,100 customers are served by utilities with a county-level live feed.
We can't see outages for: City of Auburn - (IA), City of Lake View - (IA), City of Wall Lake - (IA). Their customers are not in any number on this page; check their own outage maps.
System-wide total only, no county split: Calhoun County Elec Coop Assn, Iowa Lakes Electric Coop, MidAmerican Energy Co, North West Rural Electric Coop, Raccoon Valley Electric Cooperative, Western Iowa Power Coop.
| Utility | Feed | Out | Served | % out | Small outages | Incidents | Utility ETR | As of |
|---|---|---|---|---|---|---|---|---|
| Calhoun County Elec Coop Assn | Live · total only | not by county | - | - | - | - | - | - |
| Iowa Lakes Electric Coop | Live · total only | not by county | - | - | - | - | - | - |
| MidAmerican Energy Co | Live · total only | not by county | - | - | - | - | - | - |
| North West Rural Electric Coop | Live · total only | not by county | - | - | - | - | - | - |
| Raccoon Valley Electric Cooperative | Live · total only | not by county | - | - | - | - | - | - |
| Western Iowa Power Coop | Live · total only | not by county | - | - | - | - | - | - |
| City of Auburn - (IA) | No live feed | can't see | - | - | - | - | - | - |
| City of Lake View - (IA) | No live feed | can't see | - | - | - | - | - | - |
| City of Wall Lake - (IA) | No live feed | can't see | - | - | - | - | - | - |
Electricity-dependent residents
HHS emPOWER · data October 7, 2026Medicare beneficiaries in Sac 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 (8)
| ZIP | Power-dependent | Ventilators | O2 concentrators | Home dialysis |
|---|---|---|---|---|
| 50583 | 44 | ≤11 | 42 | 0 |
| 51450 | 21 | ≤11 | 20 | 0 |
| 51458 | 17 | ≤11 | 16 | 0 |
| 50535 | 15 | ≤11 | 13 | ≤11 |
| 51053 | 14 | 0 | ≤11 | ≤11 |
| 51466 | 13 | 0 | 12 | ≤11 |
| 51433 | ≤11 | 0 | ≤11 | 0 |
| 50567 | ≤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 Sac County or any town and utility in it.
- Freeze WarningSEVERE
Sac County has been under 18 National Weather Service alerts recently, most recently a Freeze Warning on October 17, 2026.
- Flood Watch ×6
- Severe Thunderstorm Warning ×6
- Dense Fog Advisory ×2
- Special Weather Statement ×2
- Freeze Warning ×1
- Freeze Watch ×1
Latest Sac County, IA outage updates
A running log of how this outage has changed, updated automatically as utilities report in.
- RESOLVED
Power restored after 1h 55m
- GREW
Outage grew to 934 customers out (24% of the county)
- OUTAGE BEGAN
Outage began: 467 customers out (12% of the county)
Hardest-hit cities in Sac County
Where this event is concentrated across the county's towns and townships.
Historical reliability
In 2025, the average customer in Sac County went about 17.8 hours without power. Peak simultaneous outage on record reached 3,463 customers.
The US EIA reports Iowa utilities averaged 3.1 hrs without power per customer (SAIDI) in 2025, a cross-check on our county estimate of 17.8 hrs.
Worst year here was 2025 (peak 3,463 customers out) · decade average 4.2 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2015 | 36 | 544 | 1.2 |
| 2016 | 99 | 1,234 | 1.8 |
| 2017 | 91 | 788 | 1.8 |
| 2018 | 99 | 1,360 | 1.8 |
| 2019 | 103 | 757 | 0.9 |
| 2020 | 122 | 907 | 2.6 |
| 2021 | 132 | 2,274 | 8.5 |
| 2022 | 127 | 1,217 | 2.3 |
| 2023 | 93 | 492 | 0.8 |
| 2024 | 128 | 1,282 | 6.5 |
| 2025 | 145 | 3,463 | 17.8 |
Cost of power in Sac County
ENERGY & AI DEMAND →Estimated residential electricity price for Sac 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.
- MidAmerican Energy Co11.2¢639,558 cust
- Iowa Lakes Electric Coop13.8¢9,757 cust
- North West Rural Electric Coop9.4¢9,461 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 Low ice storms exposure · 4.2 hrs/yr of outages over the last decade.
Power outages in Sac County: FAQ
- How often does Sac County, IA lose power?
- Based on EAGLE-I records, Sac County, IA logged 145 distinct outage events in 2025, averaging about 17.8 hours without power per customer over the year.
- What was the worst power outage in Sac County, IA?
- The largest tracked outage peaked at 3,463 customers without power, beginning March 19, 2025 and lasting about 1d 8h.
- Is there a power outage in Sac County, IA right now?
- No major outage is currently reported for Sac County, IA. Live coverage depends on whether local utilities report to ODIN.
- Which utilities serve Sac County, IA?
- Tracked electric providers include MidAmerican Energy Co, Raccoon Valley Electric Cooperative.
Outages are tracked at the county level; these ZIP codes fall within Sac County.
50535, 50567, 50583, 51053, 51433, 51450, 51458, 51466
Electric providers serving this county
From EIA-861 service territory, with official reliability where reported.
| Provider | Official SAIDI (EIA) | Live | Report outage |
|---|---|---|---|
| MidAmerican Energy Co | 3.6 hrs | Live · total only | - |
| Iowa Lakes Electric Coop | 0.9 hrs | Live · total only | - |
| North West Rural Electric Coop | - | Live · total only | - |
| Western Iowa Power Coop | - | Live · total only | - |
| Raccoon Valley Electric Cooperative | - | Live · total only | - |
| Calhoun County Elec Coop Assn | - | Live · total only | - |
| City of Lake View - (IA) | - | No live feed | - |
| City of Auburn - (IA) | - | No live feed | - |
| City of Wall Lake - (IA) | - | 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 Iowa customers). Machine-readable data: /api/v1/counties/19161 and /api/v1/counties/19161/history.