Bynum is a community in Teton County, Montana, home to about 15 people across 1.6 square miles. Its ZIP code is 59419.
Mostly Bynum
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| Nearest major airport | Spokane International Airport (GEG)245 miles away |
|---|---|
| Closer regional airport | Great Falls International Airport (GTF)55 miles away |
| Nearest city of 250,000+ | Seattle, WA468 miles away |
Straight-line distances from the center of Bynum; 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.
Bynum had 28 residents in the 2020 census, down 10% since 2010.
It’s the 450th largest of 475 towns in Montana by population.
Teton County grew from 5,080 residents in 1900 to 6,226 in 2020.
Teton County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 80°F in summer, and winter lows average 14°F. About 15.3 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Bynum 4 Sse, MT weather station (4 miles away).
1,457 jobs at 232 businesses in Teton 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.
Museums
Counts are within about 1 mile of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Public schools here are run by Bynum Elem. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Bynum SchoolBynum | Pre-K–8 | 8 | Public | 2.0 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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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.