Photo: Russell Lee · Public domainLiving in Aguilar, CO: what to set up and who to call
An EPA health-based violation from 2020 is still open for the Town of Aguilar water system. Power in Aguilar comes from San Isabel Electric Assn, a cooperative utility rather than a private company.
I’m new in town
What to set up in Aguilar, 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 Aguilar.
Power comes from San Isabel Electric Assn
San Isabel Electric Assn (San Isabel Electric Assn, Inc), a cooperative utility, serves all of Aguilar. Its homes paid an average of 18.9¢ per kWh in 2025, about $118 a month (its average across Colorado).
Start or move service: siea.com · (719) 547-2160
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Town of Aguilar water system
The Town of Aguilar water system supplies Aguilar: about 94% of residents live in its service area. About 6% 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 447 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. 1 older violation is still open, since 2020: a groundwater treatment requirement (Groundwater Rule), per EPA’s records.
The latest lead result on file, the 90th percentile of homes sampled in Jan–Jun 2025, was 2.0 ppb, below the 15 ppb action level that applied. The highest in five years was 8.0 ppb. That’s higher than 70% of similar systems’ latest results.
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. CO0136100.
4 home internet providers serve Aguilar
95% of 313 addresses can get 100/20 Mbps; 94% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| SECOM | Fixed wireless, Fiber | 100% | 1,000/1,000 |
| CenturyLink | DSL | 3% | 60/5 |
| T-Mobile | Fixed wireless | 27% | 100/20 |
| Verizon | Fixed wireless | 3% | 300/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Aguilar’s trash rules yet
Pickup rules, the dump and recycling in Aguilar.
Where your child goes to school
Public school districts and the school path by grade.
Aguilar is in Aguilar Reorganized School District 6.
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.
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.
Aguilar is in ZIP code 81020
ZIP codes where Aguilar residents live, with the share of the town in each.
| ZIP | Post office name | Share of Aguilar | ZIP’s residents in Aguilar |
|---|---|---|---|
| 81020 | Aguilar, CO | 100% | 51% |
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 Aguilar
Who supplies Aguilar’s drinking water, and has it had violations?
The Town of Aguilar water system (EPA ID CO0136100). 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 2.0 ppb (Jan–Jun 2025), against a 15 ppb action level.
Who provides electricity in Aguilar?
San Isabel Electric Assn (San Isabel Electric Assn, Inc), a cooperative utility. Its homes paid about 18.9¢ per kWh in 2025 (EIA).
What internet providers serve Aguilar?
SECOM, CenturyLink, T-Mobile, Verizon (FCC, as of December 2025).
What ZIP codes are in Aguilar?
81020. Census 2020 ZIP Code Tabulation Areas.
What school district is Aguilar in?
Aguilar Reorganized School District 6.
How do I register to vote in Aguilar?
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 Las Animas 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.