Cost to Run a Tankless Electric Water Heater in Iowa
Iowa's average residential electricity rate is 16¢/kWh as of July 2026 — the 23rd cheapest in the country, 13% below the U.S. average. At typical usage (0.7 hours/day), a tankless electric water heater here costs $61.29 per month.
Per hour
$2.88
at 13,000–27,000 W
Per day
$2.02
0.7 hours/day
Per month
$61.29
383 kWh
Per year
$736
4,599 kWh
By usage level in Iowa
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (0.5 hrs/day) | $1.01 | $30.64 | $368 |
| Typical (0.7 hrs/day) | $2.02 | $61.29 | $736 |
| Heavy (1.4 hrs/day) | $4.03 | $123 | $1,472 |
Iowa vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a tankless electric water heater in Iowa?
At Iowa's current average residential rate of 16¢/kWh (July 2026), a tankless electric water heater with typical usage costs about $2.02 per day, $61.29 per month, or $736 per year.
Is running a tankless electric water heater in Iowa more expensive than average?
No — it's cheaper. Iowa's rate is about 13% below the U.S. average: $61.29 per month here versus $70.10 nationally.
What does electricity cost in Iowa right now?
Iowa residents pay an average of 16¢ per kWh as of July 2026 — the 23rd cheapest rate of the 51 U.S. jurisdictions we track.