Average Electric Bill in Delaware
Residential · 12-month average, July 2025 – June 2026.
That works out to about $1,991 a year. Among the 50 states and DC, Delaware has the 12th highest average residential bill.
Data current through June 2026 — the latest available from the U.S. EIA, which publishes monthly figures on a roughly two-month delay.
What makes up the bill
Price × usage = bill, exactly: 17.59¢/kWh × 943 kWh ≈ $166. A state can land high on either factor — Delaware's bill is driven mainly by consumption, not price.
Compared with nearby states
| Delaware | $166 | |
|---|---|---|
| U.S. average | $156 | |
| Maryland | $207 | |
| Pennsylvania | $173 | |
| New Jersey | $160 |
Delaware is $10 a month above (+6.4%) the U.S. average of $156. Neighboring states share fuel mixes, weather, and often a grid operator, which makes them a closer benchmark than the national average.
Trend since 2008
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
- $171
- June 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?
›Is the electric bill in Delaware higher than the national average?
›Why is electricity expensive in Delaware?
›When is the electric bill highest in Delaware?
›How does Delaware compare with neighboring states?
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 (July 2025 – June 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 $166. 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.