Sioux City, Iowa Power Outage Today

How reliable is MidAmerican Energy service in Sioux City?

MidAmerican Energy is an investor-owned utility with 740,347 customers. In 2024 its customers averaged 1.27 interruptions and 219 minutes (about 3.7 hours) without power, so the average outage lasted about 2.9 hours.

About 60% of that time came on major event days, the severe-weather days that utilities report separately. On ordinary days the average falls to 88 minutes. A handful of severe-weather days, not everyday faults, set this utility’s year.

The typical outage was repaired in about 2.9 hours.

For comparison, Iowa as a whole averaged 167 minutes and the United States 614 minutes. That puts MidAmerican Energy above the state average.

Among the 17 utilities in Iowa with at least 5,000 customers that report to the federal government, MidAmerican Energy ranks 15th for the fewest outage minutes (1 is best). Nationally, 46% of the 926 utilities of that size reported more outage minutes in 2024.

These are the figures the utility itself reported to the US Energy Information Administration (Form EIA-861, 2024) and describe the whole service territory, not one street. Your own address can be better or worse.

Storm season and outages in Sioux City

NOAA’s Storm Events Database lists 231 storm reports for Woodbury County from 2015 through 2026, most often thunderstorm wind (107), hail (75), flood (24), and flash flood (12). The busiest full year was 2024 with 34 reports and the quietest was 2020 with 9, so the risk changes a lot from one year to the next.

Reports peak in June (60 since 2015), followed by May and July. October is outside those three months, so an outage now is less likely to be weather-related.

NOAA’s own narratives name power outages in 11 storm episodes in Woodbury County since 2015, most often in March. That count is a floor, since the database records outages only when a spotter or agency mentions them.

What the most common storm types in Sioux City do to the grid:

• Thunderstorm wind. Straight-line wind pushes trees and limbs into distribution lines. These outages are usually local, a street or a neighborhood at a time, and crews clear them circuit by circuit.
• Hail. Hail rarely cuts power by itself, but it often arrives with the wind and lightning that do, and it breaks solar panels, windshields and exposed utility equipment.
• Flood. Floodwater reaches ground-level transformers, meters and low-lying substations. Utilities may shut power off ahead of the water on purpose, and wading near flooded equipment can electrocute.

Storm reports that name Sioux City

Within Woodbury County, 74 NOAA storm reports since 2015 name Sioux City as their location or in their description: thunderstorm wind (40), hail (14), flood (9), and flash flood (8). That is about 32% of the county’s reports. Reports naming Sioux City are most common in June. The busiest full year was 2024 with 14.

Who a power outage hits hardest in Sioux City

64.8% of occupied homes in Sioux City are heated with piped natural gas, and 31.8% with electricity (US 41.3% electric). A gas furnace still needs electricity for its blower and ignition, so a long winter outage leaves these homes cold too, though a gas supply stays on when the grid fails. Never heat a home with an oven, grill or camp stove indoors.

Residents aged 65 or older are 14.9% of the population in Sioux City, close to the US share of 17.2% and 13.9% report a disability (US 13.3%). These are the households most likely to depend on powered medical equipment such as oxygen concentrators, CPAP machines and refrigerated medicine. If someone in your home does, ask MidAmerican Energy whether it keeps a priority or medical-needs list, and register before the next storm rather than during it.

About the housing: 65.2% of the housing in Sioux City was built before 1970 (US 35.5%), and older neighborhoods often have overhead service lines and mature trees close to the wires, which makes them more exposed to storm outages.

Source: US Census Bureau, American Community Survey 2020–2024 (housing, heating fuel, age and disability tables).

Backup power and electricity use in Sioux City

The average MidAmerican Energy home used about 791 kWh a month in 2024 (US average 892 kWh), an average draw of 1.1 kW around the clock, and paid about 11.0 cents per kWh (13.4 in the state, 15.8 nationally), roughly $87 a month.

Keeping only the essentials on (a refrigerator, router, a few lights and phone chargers, about 400 watts) through an outage that lasts the average about 2.9 hours takes about 1.1 kWh. A portable power station or a power bank covers that; a generator is more than most households here need for a typical outage.

A generator must never run indoors, in a garage or near a window; generator and food-safety rules are in the power outage guide linked below.

If the power is out in Sioux City

About 85,128 people live in Sioux City, the 4th largest of the 5 Iowa cities on this site. Report the outage to the utility so a ticket exists for your address, then check MidAmerican Energy’s outage map for an estimate. If neighbors have power and you do not, report it again: the fault may be on the line to your house alone, which is a separate repair.

Sioux City power outage map

MidAmerican Energy’s outage map has the official restoration estimate for your address; the count above comes from residents. Food and generator safety: power outage guide.

Sioux City power outage questions