Is electricity expensive in Idaho?

Idaho's residential average of 12.7¢/kWh is 33% below the U.S. average of 18.8¢/kWh, ranking 2 of 51 jurisdictions (1 = cheapest).

What's the cheapest dishwasher to run in Idaho?

Among currently certified models, the Loch L1126 costs the least at about $10 a year at Idaho rates (80 kWh/yr).

How does Idaho compare with other states?

The same median dishwasher costs $30 a year in North Dakota (the cheapest state) and $111 in Hawaii (the priciest). Idaho sits at $30.

Data through April 2026

Cost to run · Idaho · 12.7¢/kWh residential average

How much does it cost to run a dishwasher in Idaho?

$30/yr · median certified model

Idaho's 12.7¢/kWh rate undercuts the national average by 33%, so the typical certified dishwasher costs roughly $30 a year here instead of $45.

That makes Idaho the #2 cheapest of the 51 U.S. jurisdictions for running a dishwasher. At local rates, certified models span $10 (Loch L1126) to $30 (Amana ADFS2524R) per year — $20 of annual headroom that depends entirely on which unit you buy. For reference, the national extremes are North Dakota (12.3¢/kWh) and Hawaii (46.6¢/kWh); the same median dishwasher would cost $30 and $111 a year there.

Idaho

$30

US average

$45

North Dakota

$30

Hawaii

$111

Median certified dishwasher (239 kWh/yr) per year, at each rate

The cheapest dishwashers to run at Idaho rates

Top 10 by certified kWh, priced at 12.7¢/kWh
#	Model	kWh/yr	$/yr in ID
1	Loch L1126	80	$10
2	Fisher & Paykel DD24STX6I1	114	$14
3	Fisher & Paykel DD24STX6PX1	114	$14
4	Fisher & Paykel DD24SAX9	134	$17
5	Fisher & Paykel DD24SCTX9	134	$17
6	Fisher & Paykel DD24SDFTX9	134	$17
7	Fisher & Paykel DD24SI9	134	$17
8	Fisher & Paykel DD24STI9	134	$17
9	Fisher & Paykel DD24SV2T9	134	$17
10	BLACK+DECKER BCD6SD	155	$20

Price any model at Idaho rates

Your rate, your numbers

Annual use (kWh)

Electricity rate

Per day: 8¢
Per month: $2.53
Per year: $30

239 kWh/yr × 12.7¢/kWh = $30/yr

Prefilled with the median certified dishwasher (239 kWh/yr). Every model page on this site carries its exact certified figure.

Questions, answered with the data

How much does it cost to run a dishwasher in Idaho?: About $30 a year for the median ENERGY STAR certified dishwasher, at Idaho's average residential rate of 12.7¢/kWh — that's $2.53 a month.
Is electricity expensive in Idaho?: Idaho's residential average of 12.7¢/kWh is 33% below the U.S. average of 18.8¢/kWh, ranking 2 of 51 jurisdictions (1 = cheapest).
What's the cheapest dishwasher to run in Idaho?: Among currently certified models, the Loch L1126 costs the least at about $10 a year at Idaho rates (80 kWh/yr).
How does Idaho compare with other states?: The same median dishwasher costs $30 a year in North Dakota (the cheapest state) and $111 in Hawaii (the priciest). Idaho sits at $30.

Keep digging

Rate source: US EIA, average residential price of electricity, see methodology.