Photo: Jeffrey Beall · CC BY 3.0Living in Eldorado Springs, CO: what to set up and who to call
Eldorado Springs has no town government of its own, so Boulder County runs its elections and most services, and its children attend Boulder Valley School District RE-2. Most of Eldorado Springs has one wired internet choice: Xfinity.
I’m new in town
What to set up in Eldorado Springs, 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 Eldorado Springs.
Power comes from Xcel Energy
Xcel Energy (Public Service Co. of Colorado), an investor-owned utility, serves all of Eldorado Springs. 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 Eldorado Municipal System
Eldorado Municipal System supplies Eldorado Springs: about 21% of residents live in its service area. About 79% of homes are outside any mapped community water system, most likely on private wells, which EPA doesn’t regulate. It draws ground water and serves 308 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 77% of the 15,074 systems serving 101–500 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 2.0 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 (EPA’s estimate). Violations are counted by the start of their compliance period. CO0107246.
7 home internet providers serve Eldorado Springs
98% of 269 addresses can get 100/20 Mbps; 0% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Xfinity | Cable | 97% | 1,200/35 |
| Rise Broadband | Fixed wireless | 60% | 50/10 |
| Ayva Networks | Fixed wireless | 43% | 2,500/2,500 |
| Verizon | Fixed wireless | 30% | 300/20 |
| T-Mobile | Fixed wireless | 25% | 100/20 |
| LiveWireNet | Fixed wireless | 21% | 250/100 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Eldorado Springs’ trash rules yet
Pickup rules, the dump and recycling in Eldorado Springs.
Where your child goes to school
Public school districts and the school path by grade.
Eldorado Springs is in Boulder Valley School District RE-2.
Test scores and every school: see Schools →U.S. Department of Education, NCES Common Core of Data, 2024–25. Enrollment rules and registration are the district’s.
No town hall: the county runs things
Eldorado Springs is unincorporated, so Boulder County is the local government.
Election office: FVAP local election office directory, updated Sep 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Eldorado Springs spans 3 ZIP codes
ZIP codes where Eldorado Springs residents live, with the share of the town in each.
| ZIP | Post office name | Share of Eldorado Springs | ZIP’s residents in Eldorado Springs |
|---|---|---|---|
| 80303 | Boulder, CO | 45% | 1% |
| 80025 | Eldorado Springs, CO | 38% | 99% |
| 80305 | Boulder, CO | 18% | 1% |
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 Eldorado Springs
Who supplies Eldorado Springs’ drinking water, and has it had violations?
Eldorado Municipal System (EPA ID CO0107246). It reported no health-based violations to EPA in the five years to October 2026; 77% 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 Eldorado Springs?
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 Eldorado Springs?
Xfinity, Rise Broadband, Ayva Networks, Verizon, T-Mobile, LiveWireNet (FCC, as of December 2025).
What ZIP codes are in Eldorado Springs?
80303 (45%), 80025 (38%), 80305 (18%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Eldorado Springs in?
Boulder Valley School District RE-2.
How do I register to vote in Eldorado Springs?
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 Boulder County Clerk and Recorder, Elections Division. 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.