Photo: Marianita2407 · CC BY-SA 4.0Living in Calexico, CA: what to set up and who to call
An EPA health-based violation from 2024 is still open for the City of Calexico water system. Power in Calexico comes from Imperial Irrigation District, a political subdivision utility rather than a private company.
I’m new in town
What to set up in Calexico, 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 Calexico.
Power comes from Imperial Irrigation District
Imperial Irrigation District (Imperial Irrigation District), a political subdivision utility, serves all of Calexico. Its homes paid an average of 18.7¢ per kWh in 2025, about $202 a month (its average across California).
Start or move service: iid.com
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from City of Calexico water system
The City of Calexico water system supplies almost all of Calexico. It buys treated surface water (EPA lists Imperial Irrigation District as seller) and serves 40,357 people in all.
1 health-based violation reported to EPA in the five years to October 2026: a lead and copper treatment requirement (Lead and Copper Rule Revisions), beginning Oct 2024. 83% of the 3,525 systems serving 10,001–50,000 people had none. 1 older violation is still open, since 2024: a lead and copper treatment requirement (Lead and Copper Rule Revisions), per EPA’s records.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2024–Dec 2026, was 0.0 ppb, below the 15 ppb action level that applied. 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. CA1310002.
5 home internet providers serve Calexico
98% of 7,975 addresses can get 100/20 Mbps; 1% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Spectrum | Cable, Fiber | 97% | 1,000/35 |
| AT&T | DSL, Fixed wireless | 31% | 25/3 |
| Sun Valley Broadband | Fixed wireless | 95% | 50/10 |
| Verizon | Fixed wireless | 92% | 300/20 |
| T-Mobile | Fixed wireless | 14% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Calexico’s trash rules yet
Pickup rules, the dump and recycling in Calexico.
Where your child goes to school
Public school districts and the school path by grade.
Calexico is in Calexico Unified School District.
CSchool 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.
Calexico is in ZIP code 92231
ZIP codes where Calexico residents live, with the share of the town in each.
| ZIP | Post office name | Share of Calexico | ZIP’s residents in Calexico |
|---|---|---|---|
| 92231 | Calexico, CA | 100% | 98% |
92232 is P.O. box or single-organization ZIP with no homes.
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 Calexico
Who supplies Calexico’s drinking water, and has it had violations?
The City of Calexico water system (EPA ID CA1310002). It reported 1 health-based violation to EPA in the five years to October 2026: a lead and copper treatment requirement (Lead and Copper Rule Revisions). 83% of systems its size had none. Its latest lead 90th percentile was 0.0 ppb (Jan 2024–Dec 2026), against a 15 ppb action level.
Who provides electricity in Calexico?
Imperial Irrigation District (Imperial Irrigation District), a political subdivision utility. Its homes paid about 18.7¢ per kWh in 2025 (EIA).
What internet providers serve Calexico?
Spectrum, AT&T, Sun Valley Broadband, Verizon, T-Mobile (FCC, as of December 2025).
What ZIP codes are in Calexico?
92231. Census 2020 ZIP Code Tabulation Areas.
What school district is Calexico in?
Calexico Unified School District.
How do I register to vote in Calexico?
In California you can register online until 15 days before Election Day, in person up to and including Election Day, or by mail (postmarked 15 days before). Elections here are run by the Imperial County Registrar of Voters. Check your registration at voterstatus.sos.ca.gov.
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.