Delaware Utilities: Who Serves Your Address?
- Gas Varies by address Look up your block for the company name.
- Water Your city or district Water in Delaware is almost always city- or district-run.
- Electric Delmarva Power and Light Leads our Delaware checks, territory lines decide.
Free lookup · covers electric, gas, water & sewer · takes about a minute
1,500+ addresses checked · 49 ZIP codes · updated Jul 2026
Answers come from 684,000+ real provider assignments across the U.S., 1,500+ of them in Delaware. How we verify.
Browse by utility: Electricity
Delaware electricity
State guide focused on the utility where Delaware has a real regulatory story.
Delaware utility coverage
Where each provider led our address-level sampling. Toggle electric, gas, or water, then check your exact address.
It depends on your address, even in Delaware. The map orients you; the lookup names the companies for your block.
Check my address
Territories are approximate. Check your exact address with the lookup.
Wilmington's choice market, or a small town's own utility
Enter your Delaware address and get the exact electric, gas, water and sewer lineup for your home.
Free · electric, gas, water, sewer · about a minute
Delaware by city
City guides for electric, gas, water and sewer. Still confirm your block with the lookup.
Most common providers across 2 Delaware cities
From address-level sampling (2026-07-20). "Most common in" counts cities where that provider led.
| Utility | Provider | Most common in |
|---|---|---|
| Electricity | Delmarva Power and Light | Wilmington |
| City of Dover | Dover | |
| Water | Wilmington | Wilmington |
| Dover | Dover |
Wilmington's deregulated market, and Delaware's small-town municipal utilities
Delmarva Power delivered electricity at every sampled Wilmington address, and Wilmington sits in a deregulated retail market. You can shop for your own electricity supplier there while Delmarva keeps the wires running either way. Head south and the picture changes completely: Dover, Middletown and Smyrna each run their own small municipal electric utility, with no retail choice involved at all. Newark, home to the University of Delaware, is genuinely split territory in our sample.
So the account structure in Delaware depends heavily on which part of the state you're in. Wilmington's setup resembles the deregulated Mid-Atlantic pattern, while the smaller towns further south run more like traditional city-owned utilities. Wilmington is also the one city in our sample with confident water data, through the city's own water department.
Delaware utility questions, answered
Who is my electric company in Wilmington, Delaware?
Delmarva Power delivered electricity at every sampled Wilmington address. Wilmington also sits in Delaware's deregulated retail market, so you're free to shop for your own electricity supplier while Delmarva keeps the wires running regardless.
Can I choose my own electricity supplier in Delaware?
Only in Wilmington, based on our sample. It's the one city flagged as a deregulated retail market. Dover, Middletown and Smyrna each run their own municipal electric utility with no retail choice involved; there's no supplier to shop for in those towns.
Why do Dover, Middletown and Smyrna have their own electric utilities?
Each of these smaller Delaware towns runs its own city- or town-owned electric utility rather than buying from Delmarva Power. A genuinely different setup from Wilmington's deregulated, investor-owned pattern.
Who provides water in Wilmington?
Wilmington's own water department served every sampled address in the city. The other Delaware cities in our sample don't yet have confident water data, so check the lookup for your specific address.
Get the lineup for your exact Delaware address
Type the street. We return electric, gas, water and sewer for that block.
Free lookup · covers electric, gas, water & sewer · takes about a minute
Provider data comes from our address-level utility lookup engine, aggregated from geographically spread sample addresses in each Delaware city. Data refreshed 2026-07-20. Territories vary address by address. Always confirm yours with the lookup. Read how we verify provider data.