Cost to Run a LED Light Bulb in Idaho
Idaho's average residential electricity rate is 12.4¢/kWh as of May 2026 — the 1st cheapest in the country, 33% below the U.S. average. At typical usage (5 hours/day), a led light bulb here costs $0.17 per month.
Per hour
0.1¢
at 5–15 W
Per day
0.6¢
5 hours/day
Per month
$0.17
1.4 kWh
Per year
$2.04
16 kWh
By usage level in Idaho
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (2.5 hrs/day) | 0.3¢ | 8.5¢ | $1.02 |
| Typical (5 hrs/day) | 0.6¢ | $0.17 | $2.04 |
| Heavy (10 hrs/day) | 1.1¢ | $0.34 | $4.07 |
Idaho vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a led light bulb in Idaho?
At Idaho's current average residential rate of 12.4¢/kWh (May 2026), a led light bulb with typical usage costs about 0.6¢ per day, $0.17 per month, or $2.04 per year.
Is running a led light bulb in Idaho more expensive than average?
No — it's cheaper. Idaho's rate is about 33% below the U.S. average: $0.17 per month here versus $0.25 nationally.
What does electricity cost in Idaho right now?
Idaho residents pay an average of 12.4¢ per kWh as of May 2026 — the 1st cheapest rate of the 51 U.S. jurisdictions we track.