Average Electric Bill in Delaware
Residential · 12-month average, September 2025 – August 2026.
That works out to about $2,009 a year. Among the 50 states and DC, Delaware has the 14th highest average residential bill.
Data current through August 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: 17.97¢/kWh × 931 kWh ≈ $167. A state can land high on either factor — Delaware's bill is driven mainly by consumption, not price.
Compared with nearby states
| Delaware | $167 | |
|---|---|---|
| U.S. average | $158 | |
| Maryland | $212 | |
| Pennsylvania | $175 | |
| New Jersey | $160 |
Delaware is $9 a month above (+5.7%) the U.S. average of $158. 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
- $210
- August 2026
- Lowest month
- $119
- October 2025
- Swing
- $90
- peak minus low
- Latest month
- $210
- August 2026
Actual bills are far from flat: Delaware peaks in August 2026 and bottoms out in October 2025. The headline figure above is the average across all twelve months.
Delaware electricity bills in context
Delaware's average monthly electricity bill is $167, placing it 14th most expensive among the 50 states and DC. This sits above the national average of $158 by $9, a difference of 5.7%. The state's electricity price of 17.97¢/kWh is slightly below the national rate of 18.07¢/kWh, but homes here use more power—931 kWh per month against the national 876 kWh—and that higher usage pushes the overall bill up.
Over the past year through August 2026, Delaware's bill has risen 7.4%, growing from $156 to $167. Over the longer span since August 2021, the climb has been steeper at 42%, from $118. Since records began in December 2008, the bill has grown 27.6% from $131.
Seasonal swings are significant. The bill peaks in August 2026 at $210, then drops to its lowest in October 2025 at $119—a swing of $91 around the twelve-month average. Among neighbouring states, Pennsylvania's bill of $175 sits above Delaware's, while New Jersey's $160 sits below. Maryland's bill of $212 ranks substantially higher.
Written from the EIA figures on this page, covering data through August 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 relatively cheap 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 (September 2025 – August 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 $167. 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.