Home / Bills / Delaware

Average Electric Bill in Delaware

Residential · 12-month average, June 2025 – May 2026.

$165per month▲ 6.5% vs. the year before

That works out to about $1,977 a year. Among the 50 states and DC, Delaware has the 13th highest average residential bill.

What makes up the bill

Price
17.50¢
per kWh
▼ 1.9%U.S. 17.84¢
Usage
941 kWh
per month
▲ 8.0%U.S. 871 kWh
Bill
$165
per month
▲ 6.0%U.S. $155

Price × usage = bill, exactly: 17.50¢/kWh × 941 kWh ≈ $165. A state can land high on either factor — Delaware's bill is driven mainly by consumption, not price.

Compared with nearby states

Average monthly residential electricity bill, in US dollars
Delaware
$165
U.S. average
$155
Maryland
$206
Pennsylvania
$172
New Jersey
$160

Delaware is $9 a month above (+6.0%) the U.S. average of $155. Neighboring states share fuel mixes, weather, and often a grid operator, which makes them a closer benchmark than the national average.

Trend since 2008

DelawareU.S.
$99$116$134$152$170Dec '08Apr '13Sep '17Jan '22May '26DelawareU.S.

Each point is a trailing 12-month average, which strips out the summer/winter swing and leaves the underlying trend. Bills start in January 2008 because that is when EIA began reporting customer counts.

Seasonal swing

Highest month
$208
July 2025
Lowest month
$119
October 2025
Swing
$88
peak minus low
Latest month
$136
May 2026

Actual bills are far from flat: Delaware peaks in July 2025 and bottoms out in October 2025. The headline figure above is the average across all twelve months.

Delaware electricity bills in context

The average monthly electricity bill in Delaware is $165, ranking 13th highest among the 50 states and DC. This bill sits $10 above the national average of $155, a difference of 6%. Delaware's price per kilowatt-hour, 17.50¢/kWh, is slightly below the national rate of 17.84¢/kWh, but homes here use 70 kWh more each month than the national average of 871 kWh, and this higher usage drives the bill up.

Year-over-year, Delaware's bill rose 6.5% from $155 in the prior twelve months to $165 now. Over the longer run, the state has climbed sharply: the bill was $119 in May 2021, a gain of 38.5%, and $131 since records began in December 2008, a rise of 25.5%.

Seasonal variation is pronounced. The peak month came in July 2025 at $208, while October 2025 brought the lowest at $119, a swing of $89. This wide range reflects typical patterns across the region. Neighbouring Pennsylvania averages $172 per month, Maryland $206, and New Jersey $160, placing Delaware between New Jersey and Pennsylvania.

Written from the EIA figures on this page, covering data through May 2026.

Frequently asked questions

›How much is the average electric bill in Delaware?
The average residential electricity bill in Delaware is $165 a month, or about $1,977 a year. That is the average across June 2025 – May 2026, calculated from EIA data as total residential electricity revenue divided by the number of residential customers.
›Is the electric bill in Delaware higher than the national average?
Delaware's average bill of $165 is $9 a month higher than the U.S. average of $155. It ranks 13th highest among the 50 states and DC.
›Why is electricity expensive in Delaware?
A bill is the price per kilowatt-hour multiplied by how much power a household uses. In Delaware the residential rate averages 17.50¢/kWh against a U.S. average of 17.84¢, and the typical home uses 941 kWh a month against a U.S. average of 871 kWh. Delaware's bill is driven mainly by consumption, not price.
›When is the electric bill highest in Delaware?
Delaware bills peak in July 2025 at $208 and are lowest in October 2025 at $119 — a swing of $88 between the most and least expensive month.
›How does Delaware compare with neighboring states?
Among states bordering Delaware, Maryland has the highest average bill at $206 and New Jersey the lowest at $160. Delaware itself averages $165 a month.

How this is calculated

EIA’s retail-sales dataset reports, for every state and month, total residential revenue and the number of residential customers served. The average monthly bill is simply the first divided by the second — total spending across all households, spread evenly over all accounts.

bill = revenue ÷ customers · averaged over 12 months (June 2025 – May 2026)

Two caveats worth knowing. It is an average, so it blends apartments with large houses — a typical household in Delaware may pay well above or below $165. And it counts what was actually billed for electricity, including fixed service charges, so it is not the same as multiplying your own usage by the advertised rate.

Looking for the rate rather than the bill? See Delaware electricity prices by sector.