Ismay is a town in Custer County, Montana, home to about 1 people across 0.4 square miles. It has no ZIP code of its own: it’s part of 59336.
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| Nearest major airport | Denver International Airport (DEN)453 miles away |
|---|---|
| Closer regional airport | Dawson Community Airport (GDV)54 miles away |
| Nearest city of 250,000+ | Denver, CO460 miles away |
Straight-line distances from the center of Ismay; 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.
Ismay had 17 residents in the 2020 census, down 35% since 2000.
It’s the 475th largest of 475 towns in Montana by population.
Custer County grew from 7,891 residents in 1900 to 11,867 in 2020.
Custer County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 91°F in summer, and winter lows average 6°F. About 14.5 inches of rain and melted snow fall in a typical year, with about 30 inches of snow.
Source: NOAA 1991–2020 climate normals, Mizpah 4 Nnw, MT weather station (10 miles away).
4,264 jobs at 454 businesses in Custer 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.
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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.