In Denver, Xcel Energy provides electricity for most Denver homes; Xcel Energy is Denver's natural-gas utility; Denver Wastewater Management handles Denver's water and sewer. The exact lineup depends on your Denver address — even nearby Aurora and Lakewood answer differently.
Denver lookups are free — all four utility types in about a minute
Denver guide: providers · address check · checklist · FAQ · nearby
Here's what trips up a lot of people moving to Denver: Colorado doesn't do retail energy "choice," so you're not shopping for a provider — whoever serves your block is who you get. Across addresses in Denver that's Xcel Energy for both electricity and natural gas. Water and sewer run through Denver Wastewater Management, a different outfit from Xcel, so you set those up separately. It's a different arrangement than Colorado Springs, Fort Collins, or Longmont, where the city runs its own electric system.
Denver is its own consolidated city-county, and it grew by annexing in every direction — which left it with a famously jagged boundary. Whole neighborhoods rose on land that used to be something else: Central Park sits on the old Stapleton airport, and homes near Lowry replaced an Air Force base. However new the construction, if the address falls inside Denver's limits, energy still comes from Xcel and water and sewer from Denver Wastewater Management.
Denver spreads across the high plains a mile above sea level, the Rockies filling the western horizon while the city itself stays mostly flat and grid-straight. From the LoDo warehouses near Union Station to the bungalows of Wash Park and the newer builds out toward the airport's open prairie, the Mile High City has grown fast without losing its front-range plainness.
| Utility | Provider | Phone | Start service |
|---|---|---|---|
| ⚡ Electricity | Xcel Energy | (800) 895-2999 | Provider site |
| 🔥 Natural gas | Xcel Energy | (800) 895-2999 | Provider site |
| 💧 Water | Denver Wastewater Management | (303) 446-3400 | Provider site |
| 🚽 Sewer | Denver Wastewater Management | (303) 446-3400 | Provider site |
Based on 12 sampled Denver addresses spanning ZIP codes 80204, 80205, 80206, 80209, 80210, 80211, 80219, 80222, 80237, 80238, 80239, 80249 (2026-07-20). Yours may differ — the Denver lookup is the tiebreaker.
A Denver mailing address doesn't always mean you're inside city limits. Cross a block and you can land in Glendale — an enclave ringed by Denver — or in unincorporated Arapahoe, Adams, or Jefferson County, where the provider mix can change.
The one-minute fix: run your Denver address through the lookup and skip the guessing.
Before your first night in a new Denver place, run this quick checklist — it covers your Xcel energy start and your separate Denver Wastewater Management water-and-sewer setup.
At every one of the Denver addresses we sampled, Xcel Energy was the electric utility. The exact Denver provider depends on the address.
Generally no — Denver electric territory is fixed by address: the utility holding your Denver block is your utility, and at every one of sampled Denver addresses that was Xcel Energy — Denver is a one-signup town.
At every one of the Denver addresses we sampled, Denver Wastewater Management was the water provider — sewer included. Other districts take over around Denver's edges, so check your block.
No — at every one of the sampled Denver addresses, Xcel Energy was the gas utility, but plenty of Denver homes are all-electric and never open this account.
For both, it's Xcel Energy — that's what came up at every address we sampled across Denver. Colorado doesn't have retail energy choice, so there's no separate company to shop for; the same utility that serves your street handles your power and your natural gas alike. To confirm what serves your specific place, run the address through the lookup before you schedule a start date.
No — Colorado isn't a deregulated "choice" state, so there's no marketplace of retail suppliers to pick from the way there is in Texas or parts of the Northeast. Whoever serves your address is who bills you, and in Denver that's Xcel Energy for both electricity and natural gas. So instead of comparing companies, your move-in job is simply getting service started in your name at the right address. The lookup confirms who that provider is.
Water and sewer show up under Denver Wastewater Management at the addresses we sampled — a different provider than the Xcel service covering your energy. Since it's a separate outfit, plan on handling it on its own rather than folding it in with your power setup. If you're not sure which accounts apply to your new place, the lookup breaks utilities down by type for your exact address, so you can see water, sewer, gas, and electric side by side.
One minute with the Denver lookup above returns your Denver address's exact providers, phone numbers included.
Moving somewhere just outside Denver? Providers likely differ:
Denver-level lists can't be precise. Your Denver address can.
Find my providersDenver provider data comes from our address-level utility lookup engine — 12 Denver sample addresses spread across ZIPs 80204, 80205, 80206, 80209, 80210, 80211, 80219, 80222, 80237, 80238, 80239, 80249, refreshed 2026-07-20. Individual Denver addresses vary — check yours directly. Here's how we verify Denver provider data.