Living in King Ranch Colony, MT: what to set up and who to call
The King Ranch Colony water system reported 18 health-based violations to EPA in the last five years: nitrate-nitrite ×18. 78% of systems its size reported none. King Ranch Colony has no town government of its own, so Fergus County runs its elections and most services, and its children attend Fergus High School District.
I’m new in town
What to set up in King Ranch Colony, 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 King Ranch Colony.
Power comes from NorthWestern Energy
NorthWestern Energy (NorthWestern Energy LLC - (MT)), an investor-owned utility, serves all of King Ranch Colony. Its homes paid an average of 14.4¢ per kWh in 2025, about $102 a month (its average across Montana, for customers on its standard service). Montana lets you buy power from another supplier; 0% of NorthWestern Energy’s home customers do, and NorthWestern Energy still delivers it.
Start or move service: northwesternenergy.com · (888) 467-2669
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from King Ranch Colony water system
The King Ranch Colony water system supplies King Ranch Colony: 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 56 people in all.
18 health-based violations reported to EPA in the five years to October 2026: nitrate-nitrite ×18, the latest beginning Apr 2026. 78% of the 11,392 systems serving <=100 people had none.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2022–Dec 2024, 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. MT0000432.
Which providers serve King Ranch Colony
This card will list the home internet providers the FCC’s National Broadband Map shows in King Ranch Colony, the share of addresses that can get 100/20 Mbps and the share with fiber, with the map’s “as of” date.
Source to come: FCC Broadband Data Collection.
We don’t have King Ranch Colony’s trash rules yet
Pickup rules, the dump and recycling in King Ranch Colony.
Where your child goes to school
Public school districts and the school path by grade.
King Ranch Colony is in two districts that split the grades: Fergus High School District and King Colony Elementary School District.
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
King Ranch Colony is unincorporated, so Fergus County is the local government.
Election office: FVAP local election office directory, updated Sep 2024; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
King Ranch Colony is in ZIP code 59457
ZIP codes where King Ranch Colony residents live, with the share of the town in each.
| ZIP | Post office name | Share of King Ranch Colony | ZIP’s residents in King Ranch Colony |
|---|---|---|---|
| 59457 | Lewistown, MT | 100% | 1% |
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 King Ranch Colony
Who supplies King Ranch Colony’s drinking water, and has it had violations?
The King Ranch Colony water system (EPA ID MT0000432). It reported 18 health-based violations to EPA in the five years to October 2026: nitrate-nitrite ×18. 78% of systems its size had none. Its latest lead 90th percentile was 0.0 ppb (Jan 2022–Dec 2024), against a 15 ppb action level.
Who provides electricity in King Ranch Colony?
NorthWestern Energy (NorthWestern Energy LLC - (MT)), an investor-owned utility. Its homes paid about 14.4¢ per kWh in 2025 (EIA).
What ZIP codes are in King Ranch Colony?
59457. Census 2020 ZIP Code Tabulation Areas.
What school district is King Ranch Colony in?
Fergus High School District and King Colony Elementary School District.
How do I register to vote in King Ranch Colony?
Montana has no online registration; you can register in person up to and including Election Day or by mail (postmarked 30 days before). Elections here are run by the Fergus County Election Administrator. Check your registration at prodvoterportal.mt.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): pending.