Connecticut Utilities: Who Serves Your Address?
- Gas Varies by address Look up your block for the company name.
- Water Your city or district Water in Connecticut is almost always city- or district-run.
- Electric Depends on territory Territory lines decide, your address is the answer.
Free lookup · electric, gas, water & sewer for any Connecticut address
3,000+ addresses checked · 216 ZIP codes · updated Jul 2026
Answers come from 684,000+ real provider assignments across the U.S., 3,000+ of them in Connecticut. How we verify.
Connecticut 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 Connecticut. The map orients you; the lookup names the companies for your block.
Check my addressCity-by-city guides for Connecticut are coming soon. The address lookup already covers every Connecticut address.
Territories are approximate. Check your exact address with the lookup.
Skip the guesswork
Enter your Connecticut address and get your exact electric, gas, water and sewer providers.
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Eversource country, with a United Illuminating corridor
Eversource is Connecticut's dominant electric utility in our data, but United Illuminating serves the shoreline corridor around New Haven and Bridgeport, and because both are delivery utilities in a state with retail choice for supply, the company that owns your wires stays fixed no matter whose generation plan you buy.
Gas depends on where you are: Connecticut Natural Gas around Hartford, Southern Connecticut Gas along the shore, Eversource elsewhere. Water is run by regional authorities. The Regional Water Authority in greater New Haven, the Metropolitan District Commission around Hartford, and Aquarion across much of the west.
Connecticut utility questions, answered
Is my electric company Eversource or United Illuminating?
If you're in the New Haven–Bridgeport shoreline corridor, likely United Illuminating; most of the rest of the state is Eversource. Your exact address settles it. Run the lookup.
Can I choose my electricity supplier in Connecticut?
You can choose your generation supplier, but the delivery utility that owns the wires and restores outages, Eversource or UI, is fixed by your address.
Who provides water in Connecticut?
Regional authorities rather than one statewide company: the RWA serves greater New Haven, the MDC serves the Hartford area, and Aquarion serves much of western Connecticut.
Get the lineup for your exact Connecticut address
Type the street. We return electric, gas, water and sewer for that block.
Free lookup · electric, gas, water & sewer for any Connecticut address
Provider territories on this page come from our address-level mapping database (geographically spread sample addresses across Connecticut), not from the live lookup engine's city summaries. Data refreshed 2026-07-22. Territories vary address by address. Always confirm yours with the lookup. Read how we verify provider data.