U.S. residential electricity EIA data: July 2026 US average 18.3¢/kWh Updated

Heating · Iowa

How Much Does It Cost to Run a Space Heater in Iowa?

The short answer

Running a 1,500W space heater in Iowa costs about $0.24 an hour. At 8 hours a day, that’s roughly $58.37 a month and $700 a year.

That’s based on Iowa’s average residential rate of 16.0¢/kWh (EIA, July 2026), 13% below the US average.

Source: U.S. EIA, July 2026 data · Updated

Space Heater cost by daily use in Iowa

Cost at 16.0¢/kWh, the Iowa average (EIA, Jul 2026)
Daily usekWh/monthPer dayPer monthPer year
1 hour/day 45.6 $0.24 $7.30 $87.55
2 hours/day 91.3 $0.48 $14.59 $175
4 hours/day 182.5 $0.96 $29.18 $350
8 hours/day 365.0 $1.92 $58.37 $700
12 hours/day 547.6 $2.88 $87.55 $1,051
24 hours/day 1,095.1 $5.76 $175 $2,101

Iowa vs other states

At typical use, a space heater costs $700 a year in Iowa — $1,402 less than in Hawaii and $143 more than in Louisiana.

Iowa has the 24th-cheapest residential electricity of the 50 states and DC. Iowa price per kWh · all states ranked

Electricity price trend in Iowa

16.0¢/kWh in July 2026 — ▲ +4.4% from a year earlier.

How to lower the cost of running a space heater

A space heater is a resistance heater: virtually every watt it draws becomes heat, so a 1,500W model uses 1.5 kWh for every hour it runs on high. The low setting on most models is around 750W. Ceramic, oil-free fan heaters and infrared models all have the same electricity cost for the same wattage — the difference is how the heat is delivered, not efficiency. A built-in thermostat lowers the real-world cost because the heater cycles off once the room reaches temperature; our estimate assumes it runs at full power for the hours you enter, which gives you a safe upper bound.

  • Heat the room you are in, not the whole house — lower your central thermostat a few degrees while the space heater runs.
  • Use a model with a thermostat and an eco mode so it cycles off when the room is warm.
  • Close doors and block drafts so the heat stays where you need it.
  • Winters in Iowa are long, so heating appliances often run more hours here than the national default — adjust the hours above to match your home.

Questions

Frequently asked questions

How much does it cost to run a space heater for 24 hours in Iowa?

Running a 1,500W space heater for 24 hours uses about 36.0 kWh, which costs about $5.76 at Iowa’s average rate of 16.0¢/kWh.

How many kWh does a space heater use per month?

At 8 hours a day, a typical space heater uses about 365 kWh a month. In Iowa that costs $58.37.

Is it expensive to run a space heater in Iowa?

Iowa has the 24th-cheapest residential electricity of the 50 states and DC at 16.0¢/kWh — close to the middle of the pack. Running a space heater here costs about $700 a year at typical use, compared with $802 at the national average rate.

What is the electricity rate in Iowa right now?

The average residential electricity rate in Iowa was 16.0¢ per kWh in July 2026, according to the latest EIA data — up 4.4% from a year earlier.

Is it cheaper to run a space heater or central heat?

Heating one small room with a 1,500W space heater is usually cheaper than heating the whole house with an electric furnace. A modern heat pump, however, delivers 2–4 units of heat per unit of electricity, so it can heat a room far more cheaply than any space heater.

Do ceramic or infrared space heaters use less electricity?

No. All electric resistance heaters turn about 100% of their electricity into heat. A 1,500W ceramic heater and a 1,500W infrared heater cost the same per hour.

Sources & method