Photo: Coemgenus at English Wikipedia · CC BY-SA 3.0Living in Marmarth, ND: what to set up and who to call
The City of Marmarth water system has a clean five-year EPA record, but its latest lead result, 6.5 ppb, was higher than 94% of similar systems’ (the action level is 15). Public schools here are run by Marmarth Public School District 12.
I’m new in town
What to set up in Marmarth, 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 Marmarth.
Power comes from Montana-Dakota Utilities
Montana-Dakota Utilities (Montana-Dakota Utilities Co), an investor-owned utility, serves all of Marmarth. Its homes paid an average of 11.1¢ per kWh in 2025, about $92 a month (its average across North Dakota).
Start or move service: montana-dakota.com · (800) 638-3278
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from City of Marmarth water system
The City of Marmarth water system supplies Marmarth: about 90% of residents live in its service area. About 10% 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 136 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 2023–Dec 2025, was 6.5 ppb, below the 15 ppb action level that applied. That’s higher than 94% 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. ND4400615.
1 home internet providers serve Marmarth
100% of 93 addresses can get 100/20 Mbps; 100% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Consolidated Telcom | Fiber | 100% | 1,000/1,000 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Marmarth’s trash rules yet
Pickup rules, the dump and recycling in Marmarth.
Where your child goes to school
Public school districts and the school path by grade.
Marmarth is in Marmarth Public School District 12.
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 Jul 2019; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Jul 30, 2024.
Marmarth is in ZIP code 58643
ZIP codes where Marmarth residents live, with the share of the town in each.
| ZIP | Post office name | Share of Marmarth | ZIP’s residents in Marmarth |
|---|---|---|---|
| 58643 | Marmarth, ND | 100% | 72% |
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 Marmarth
Who supplies Marmarth’s drinking water, and has it had violations?
The City of Marmarth water system (EPA ID ND4400615). 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 6.5 ppb (Jan 2023–Dec 2025), against a 15 ppb action level.
Who provides electricity in Marmarth?
Montana-Dakota Utilities (Montana-Dakota Utilities Co), an investor-owned utility. Its homes paid about 11.1¢ per kWh in 2025 (EIA).
What internet providers serve Marmarth?
Consolidated Telcom (FCC, as of December 2025).
What ZIP codes are in Marmarth?
58643. Census 2020 ZIP Code Tabulation Areas.
What school district is Marmarth in?
Marmarth Public School District 12.
How do I register to vote in Marmarth?
North Dakota has no voter registration: you show ID at the polls. Elections here are run by the Slope County Auditor. Check your registration at vip.sos.nd.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 Jul 30, 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.