Utility Wallet · Wilmington

Wilmington Utility Guide: Address Lookup

Wilmington sits in Delaware's retail electric choice market.

  • Gas Delmarva Power Clear Wilmington answer at 99% of checks.
  • Water City of Wilmington 62% in Wilmington, with other districts on the edges.
  • Electric Delmarva Power and Light handles poles and meters In Wilmington, you pick the retail plan separately.

Free Wilmington lookup · about a minute

800+ Wilmington addresses · 10 ZIP codes · updated Jul 2026

Provenance for Wilmington: 800+ local assignments inside 684,000+ real U.S. provider matches. How we verify.

Gas service in Wilmington: the usual answer

How gas works in Wilmington and beyond

One answer · 99% of 800+ addresses
Delmarva Power
Delmarva Power · 99% of 800+ Wilmington addresses we checked.
Check my address

Wilmington gas emergency: evacuate first, alert Delmarva Power at the number on Delmarva Power's site, and call 811 before digging near lines.

Who supplies water to Wilmington addresses?

How water works in Wilmington and beyond

Front-runner · 62% of 900+
City of Wilmington
City of Wilmington · 62% of 900+ Wilmington addresses we checked.
Check my address Provider site (302) 576-2620

Watch the edges

Wilmington's city limits end well before the New Castle County suburbs do. Cross into Elsmere, Newport, or unincorporated county land and the water and sewer biller changes even though Delmarva still delivers the power.

Look up your district
Exact answer

Look up the Wilmington providers for your street

Type a street in Wilmington. We'll name the utilities on that Wilmington property.

Free Wilmington lookup · about a minute

Wilmington electricity. Wires vs. the plan

How electricity works in Wilmington and beyond

Wilmington residents don't pick the poles-and-wires company. The plan riding on top is the part Wilmington lets you choose.

wires vs. plans

Poles & meters
Delmarva Power and Light
The Wilmington delivery company for most sampled addresses. Outages and the meter are their job.
Retail plan
Retail electric plans
Official shopping starts at DE PSC.

Wilmington delivery outages route to Delmarva Power and Light at (800) 375-7117. Keep that number even after you switch retailers.

See who serves my address

Moving to Wilmington: set up in this order

Set up Delmarva for delivery, decide whether you want a competitive supply plan, then handle city water and sewer together.

  1. Lock in electricity (retail plan). In a choice market like Wilmington, the plan comes first; delivery follows. Watch edges outside the city line in New Castle County, where water and sewer move to county or suburban systems.
  2. Gas account: Delmarva Power (99% of Wilmington checks). Skip this when the Wilmington unit is all-electric.
  3. Set up water and related city services. City of Wilmington is the usual Wilmington water bill; sewer/trash can ride along or split.
  4. Set a date for internet tech visit. Confirm building access rules before the Wilmington tech arrives.

Wilmington utility questions, answered

Who is the electric utility in Wilmington?

Delmarva Power delivered to every Wilmington address we sampled. Delaware also has retail choice, so you may select a separate supplier through the Delaware PSC while Delmarva still delivers.

Does Wilmington have electric choice?

Yes. Delivery stays with Delmarva Power and you can compare suppliers through the Delaware Public Service Commission. Run your address first so you know the delivery utility before you shop.

Who handles water and sewer in Wilmington?

The City of Wilmington covered both across our samples, billed together. Outside the city line, New Castle County or a suburban system usually takes over.

Who is the electric company in Wilmington?

In Wilmington, Delmarva Power and Light runs the poles and wires while you pick the retail electricity plan yourself. The wires company (Delmarva Power and Light) is fixed. Shop the plan on top.

How do I set up all utilities for a Wilmington address?

Run the Wilmington lookup above. It returns your exact providers for each utility, with sign-up links, in about a minute.

Ready when you are

Finish with a Wilmington address check

Don't stop at the Wilmington citywide pattern. Confirm the parcel.

Free Wilmington lookup · about a minute

Provider data: 885 Wilmington-area addresses from our mapping database plus 8 geographically spread sample addresses, aggregated at ZIP level. Data refreshed Jul 2026. Territories vary address by address. Always confirm yours with the lookup. Reviewed by the Utility Wallet data team · How we verify provider data.

It depends on your address, even in Wilmington

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