San Lorenzo Historic District · Photo: Jon Roanhaus · CC BY-SA 4.0Living in San Lorenzo, NM: what to set up and who to call
An EPA health-based violation from 2025 is still open for the Casas Adobes Mdwca water system, which supplies San Lorenzo. San Lorenzo has no town government of its own, so Grant County runs its elections and most services, and its children attend Cobre Consolidated Schools.
I’m new in town
What to set up in San Lorenzo, 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 San Lorenzo.
Power comes from PNM
PNM (Public Service Co. of New Mexico), an investor-owned utility, serves all of San Lorenzo. Its homes paid an average of 16.4¢ per kWh in 2025, about $91 a month (its average across New Mexico).
Start or move service: pnmresources.com
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Casas Adobes Mdwca water system
The Casas Adobes Mdwca water system supplies San Lorenzo: about 0% of residents live in its service area. About 100% 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 610 people in all.
6 health-based violations reported to EPA in the five years to October 2026: a groundwater treatment requirement (Groundwater Rule) ×6, the latest beginning Sep 2025. 78% of the 5,327 systems serving 501–1,000 people had none. 6 older violations are still open, since 2025: a groundwater treatment requirement (Groundwater Rule), per EPA’s records.
The latest lead result on file, the 90th percentile of homes sampled in Jul–Dec 2025, was 0.0 ppb, below the 15 ppb action level that applied. The highest in five years was 15.0 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. NM3510209.
2 home internet providers serve San Lorenzo
98% of 87 addresses can get 100/20 Mbps; 0% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Western New Mexico Telephone Company | DSL, Fixed wireless | 100% | 100/20 |
| T-Mobile | Fixed wireless | 69% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have San Lorenzo’s trash rules yet
Pickup rules, the dump and recycling in San Lorenzo.
Where your child goes to school
Public school districts and the school path by grade.
San Lorenzo is in Cobre Consolidated Schools.
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
San Lorenzo is unincorporated, so Grant County is the local government.
Election office: FVAP local election office directory, updated Sep 2023; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Aug 27, 2026.
San Lorenzo is in ZIP code 88041
ZIP codes where San Lorenzo residents live, with the share of the town in each.
| ZIP | Post office name | Share of San Lorenzo | ZIP’s residents in San Lorenzo |
|---|---|---|---|
| 88041 | Hanover, NM | 100% | 16% |
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 San Lorenzo
Who supplies San Lorenzo’s drinking water, and has it had violations?
The Casas Adobes Mdwca water system (EPA ID NM3510209). It reported 6 health-based violations to EPA in the five years to October 2026: a groundwater treatment requirement (Groundwater Rule) ×6. 78% of systems its size had none. Its latest lead 90th percentile was 0.0 ppb (Jul–Dec 2025), against a 15 ppb action level.
Who provides electricity in San Lorenzo?
PNM (Public Service Co. of New Mexico), an investor-owned utility. Its homes paid about 16.4¢ per kWh in 2025 (EIA).
What internet providers serve San Lorenzo?
Western New Mexico Telephone Company, T-Mobile (FCC, as of December 2025).
What ZIP codes are in San Lorenzo?
88041. Census 2020 ZIP Code Tabulation Areas.
What school district is San Lorenzo in?
Cobre Consolidated Schools.
How do I register to vote in San Lorenzo?
In New Mexico you can register online until 28 days before Election Day, in person up to and including Election Day, or by mail (postmarked 28 days before). Elections here are run by the Grant County Clerk. Check your registration at voterportal.servis.sos.state.nm.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 Aug 27, 2026 (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.