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Dotsero has no town government of its own, so Eagle County runs its elections and most services, and its children attend Eagle County School District RE 50. Tap water in most of Dotsero comes from the Two Rivers Village water system, which has a clean five-year EPA record (about 22% of systems its size had a health-based violation) and a latest lead result below detection.
I’m new in town
What to set up in Dotsero, 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 Dotsero.
Power comes from Holy Cross Electric Assn
Holy Cross Electric Assn (Holy Cross Electric Assn, Inc), a cooperative utility, serves all of Dotsero. Its homes paid an average of 12.4¢ per kWh in 2025, about $140 a month (its average across Colorado).
Start or move service: holycross.com · (970) 945-5491
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Two Rivers Village water system
The Two Rivers Village water system supplies Dotsero: about 72% of residents live in its service area. About 28% 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 896 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 78% of the 5,327 systems serving 501–1,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2023–Dec 2025, was 0.0 ppb, below the 15 ppb action level that applied. The highest in five years was 1.0 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. CO0119720.
6 home internet providers serve Dotsero
92% of 362 addresses can get 100/20 Mbps; 92% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Vero Fiber | Fiber | 91% | 2,300/2,300 |
| Quantum Fiber | Fiber | 72% | 2,000/1,000 |
| CenturyLink | Fiber, DSL | 24% | 500/500 |
| Pathfinder | Fixed wireless | 88% | 940/940 |
| T-Mobile | Fixed wireless | 47% | 25/3 |
| AT&T | Fixed wireless | 5% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Dotsero’s trash rules yet
Pickup rules, the dump and recycling in Dotsero.
Where your child goes to school
Public school districts and the school path by grade.
Dotsero is in Eagle County School District RE 50.
B+School gradeSee 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
Dotsero is unincorporated, so Eagle 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.
Dotsero is in ZIP code 81637
ZIP codes where Dotsero residents live, with the share of the town in each.
| ZIP | Post office name | Share of Dotsero | ZIP’s residents in Dotsero |
|---|---|---|---|
| 81637 | Gypsum, CO | 100% | 12% |
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 Dotsero
Who supplies Dotsero’s drinking water, and has it had violations?
The Two Rivers Village water system (EPA ID CO0119720). It reported no health-based violations to EPA in the five years to October 2026; 78% of systems its size had none. Its latest lead 90th percentile was 0.0 ppb (Jan 2023–Dec 2025), against a 15 ppb action level.
Who provides electricity in Dotsero?
Holy Cross Electric Assn (Holy Cross Electric Assn, Inc), a cooperative utility. Its homes paid about 12.4¢ per kWh in 2025 (EIA).
What internet providers serve Dotsero?
Vero Fiber, Quantum Fiber, CenturyLink, Pathfinder, T-Mobile, AT&T (FCC, as of December 2025).
What ZIP codes are in Dotsero?
81637. Census 2020 ZIP Code Tabulation Areas.
What school district is Dotsero in?
Eagle County School District RE 50.
How do I register to vote in Dotsero?
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 Eagle 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.