WattCost

Data through April 2026

Cost to run · Montana · 13.9¢/kWh residential average

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

$33/yr · median certified model

Residential electricity in Montana runs 13.9¢/kWh — 26% under the U.S. average — putting the median certified dishwasher at about $33 a year, versus $45 nationally.

Montana ranks 7 of 51 jurisdictions for dishwasher running costs — solidly mid-table. Model choice matters as much as geography: at Montana rates the most efficient certified model (Loch L1126) costs $11 a year while the most power-hungry (Amana ADFS2524R) costs $33 — a spread of $22 every year. 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.

Montana
$33
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 Montana rates

Price any model at Montana rates

Your rate, your numbers

Per day
Per month
$2.77
Per year
$33

239 kWh/yr × 13.9¢/kWh = $33/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 Montana?
About $33 a year for the median ENERGY STAR certified dishwasher, at Montana's average residential rate of 13.9¢/kWh — that's $2.77 a month.
Is electricity expensive in Montana?
Montana's residential average of 13.9¢/kWh is 26% below the U.S. average of 18.8¢/kWh, ranking 7 of 51 jurisdictions (1 = cheapest).
What's the cheapest dishwasher to run in Montana?
Among currently certified models, the Loch L1126 costs the least at about $11 a year at Montana rates (80 kWh/yr).
How does Montana compare with other states?
The same median dishwasher costs $30 a year in North Dakota (the cheapest state) and $111 in Hawaii (the priciest). Montana sits at $33.

Keep digging

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