Twin Hills Colony is a community in Chouteau County, Montana, home to about 48 people across 0.4 square miles. It has no ZIP code of its own: it’s part of 59420.
Mostly Carter; part is in Twin Hills Colony
We’re writing up Twin Hills Colony’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Spokane International Airport (GEG)305 miles away |
|---|---|
| Closer regional airport | Great Falls International Airport (GTF)28 miles away |
| Nearest city of 250,000+ | Seattle, WA529 miles away |
Straight-line distances from the center of Twin Hills Colony; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
It’s the 388th largest of 475 towns in Montana by population.
Chouteau County grew from 10,966 residents in 1900 to 5,895 in 2020.
Chouteau County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 85°F in summer, and winter lows average 13°F. About 13.9 inches of rain and melted snow fall in a typical year, with about 43 inches of snow.
Source: NOAA 1991–2020 climate normals, Carter 14 W, MT weather station (11 miles away).
772 jobs at 153 businesses in Chouteau County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
Nearest hospitals
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances.
Public schools here are run by Knees Elem. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Knees SchoolCarter | Pre-K–8 | 13 | Public | 23.5 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Carter.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.