Photo: Jeffrey Beall · CC BY 3.0Living in Centennial, CO: what to set up and who to call
Centennial has its own drop-off, Waste Connections Denver South Jordan Road Transfer Station, on 7120 South Jordan Road. Castlewood Public Library, at 6739 South Uinta Street, is the library in town.
I’m new in town
What to set up in Centennial, and who provides it. Tap an answer for the details and where they come from.
Power, water and internet
Who to call to start service at a new address in Centennial.
Power comes from Xcel Energy
Xcel Energy (Public Service Co. of Colorado), an investor-owned utility, serves 66.4% of Centennial residents. Its homes paid an average of 15.9¢ per kWh in 2025, about $93 a month (its average across Colorado).
Start or move service: xcelenergy.com · (800) 895-4999
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from East Cherry Creek Valley WSD
East Cherry Creek Valley WSD supplies Centennial: about 26% of residents live in its service area. Southgate WSD serves another 25%. Willows WD serves another 11%. Arapahoe Cnty Wwwa serves another 6%. About 38% of homes are outside any mapped community water system, most likely on private wells, which EPA doesn’t regulate. It buys treated surface water (EPA lists City of Aurora and Wise Project and Denver Water Board as sellers) and serves 66,130 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 90% of the 597 systems serving 50,001–100,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan–Jun 2026, was 0.0 ppb, below the 15 ppb action level that applied. The highest in five years was 3.0 ppb. Results below detection are reported as 0, so 0 doesn’t mean no lead at any tap.
The system’s full record: EPA ECHO report
EPA SDWIS via Envirofacts (violations pulled Oct 9, 2026) and ECHO (lead samples, 2026Q3); service area: EPA Community Water System Service Area Boundaries v3.0. Violations are counted by the start of their compliance period. CO0103035.
11 home internet providers serve Centennial
100% of 34,637 addresses can get 100/20 Mbps; 84% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Xfinity | Cable, Fiber | 100% | 2,000/250 |
| Ting | Fiber | 86% | 1,000/1,000 |
| CenturyLink | DSL, Fiber | 60% | 140/20 |
| Quantum Fiber | Fiber | 39% | 8,000/8,000 |
| T-Mobile | Fixed wireless | 69% | 100/20 |
| Verizon | Fixed wireless | 57% | 300/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
Centennial has its own drop-off: Waste Connections Denver South Jordan Road Transfer Station
Where to take trash and recycling in Centennial, and where the rules are.
Waste Connections Denver South Jordan Road Transfer Station
7120 South Jordan Road, Centennial, CO, 80112
Before you go, check the rules on centennialco.gov.
OpenStreetMap, as of Oct 9, 2026 (last edited Sep 2024). © OpenStreetMap contributors.
Where your child goes to school
Public school districts and the school path by grade.
Most of Centennial (66%) is in Cherry Creek School District 5; parts are in Littleton School District 6 (34%).
ASchool gradeSee Schools →U.S. Department of Education, NCES Common Core of Data, 2024–25. Enrollment rules and registration are the district’s.
Town hall and registering to vote
Who to call, and how to register.
Election office: FVAP local election office directory, updated Sep 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Centennial spans 6 ZIP codes
ZIP codes where Centennial residents live, with the share of the town in each.
| ZIP | Post office name | Share of Centennial | ZIP’s residents in Centennial |
|---|---|---|---|
| 80122 | Littleton, CO | 28% | 92% |
| 80015 | Aurora, CO | 24% | 37% |
| 80112 | Englewood, CO | 22% | 66% |
| 80121 | Littleton, CO | 12% | 73% |
| 80111 | Englewood, CO | 7% | 25% |
| 80016 | Aurora, CO | 7% | 11% |
Census 2020 ZIP Code Tabulation Areas, by census block; post office names: GeoNames (CC BY 4.0). ZIPs created since 2020 are missing.
Getting around, the ER and the library
One line each; the subject pages have the rest.
ER: CMS hospital data. Library: IMLS Public Libraries Survey, FY2024.
Questions about living in Centennial
Who supplies Centennial’s drinking water, and has it had violations?
East Cherry Creek Valley WSD (EPA ID CO0103035). It reported no health-based violations to EPA in the five years to October 2026; 90% of systems its size had none. Its latest lead 90th percentile was 0.0 ppb (Jan–Jun 2026), against a 15 ppb action level.
Who provides electricity in Centennial?
Xcel Energy (Public Service Co. of Colorado), an investor-owned utility. Its homes paid about 15.9¢ per kWh in 2025 (EIA).
What internet providers serve Centennial?
Xfinity, Ting, CenturyLink, Quantum Fiber, T-Mobile, Verizon (FCC, as of December 2025).
What ZIP codes are in Centennial?
80122 (28%), 80015 (24%), 80112 (22%), 80121 (12%), 80111 (7%), 80016 (7%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Centennial in?
Cherry Creek School District 5. Parts of the city are in Littleton School District 6.
How do I register to vote in Centennial?
In Colorado you can register online until 8 days before Election Day, in person up to and including Election Day, or by mail (postmarked 8 days before). Elections here are run by the Arapahoe County Clerk and Recorder. Check your registration at sos.state.co.us.
Sources & dates
Every answer above names its source. Here they are with their dates.
- Water: EPA SDWIS (Envirofacts, pulled Oct 9, 2026), ECHO SDWA 2026Q3, EPA CWS Service Area Boundaries v3.0.
- Power: HIFLD Electric Retail Service Territories (map Aug 2023); EIA-861 final 2025.
- Trash: OpenStreetMap, Geofabrik extract of Oct 9, 2026. © OpenStreetMap contributors (ODbL).
- ZIP codes: Census 2020 ZCTA relationship files; GeoNames postal codes (CC BY 4.0).
- Schools: NCES Common Core of Data, 2024–25.
- Registration: vote.gov, updated Nov 18, 2024 (read Oct 10, 2026). Official sites and area codes: Wikidata.
- Election office: FVAP local election office directory (fetched Oct 10, 2026; each record dated), EAC EAVS 2024 jurisdictions; registration and lookup links from vote.gov’s state data, checked Oct 10, 2026.
- Internet: FCC National Broadband Map, as of December 2025.