Cost to Run a Electric Water Heater in South Dakota
South Dakota's average residential electricity rate is 15.7¢/kWh as of May 2026 — the 21st cheapest in the country, 15% below the U.S. average. At typical usage (2.9 hours/day), a electric water heater here costs $62.29 per month.
Per hour
$0.71
at 3,500–5,500 W
Per day
$2.05
2.9 hours/day
Per month
$62.29
397 kWh
Per year
$748
4,763 kWh
By usage level in South Dakota
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (1.45 hrs/day) | $1.02 | $31.14 | $374 |
| Typical (2.9 hrs/day) | $2.05 | $62.29 | $748 |
| Heavy (5.8 hrs/day) | $4.10 | $125 | $1,496 |
South Dakota vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a electric water heater in South Dakota?
At South Dakota's current average residential rate of 15.7¢/kWh (May 2026), a electric water heater with typical usage costs about $2.05 per day, $62.29 per month, or $748 per year.
Is running a electric water heater in South Dakota more expensive than average?
No — it's cheaper. South Dakota's rate is about 15% below the U.S. average: $62.29 per month here versus $73.00 nationally.
What does electricity cost in South Dakota right now?
South Dakota residents pay an average of 15.7¢ per kWh as of May 2026 — the 21st cheapest rate of the 51 U.S. jurisdictions we track.