MammothMT
Today 15 people live in this town, first settled in 1877.
Is Mammoth a good place to live?
100% of adults 25 and older hold a bachelor’s degree or more in Mammoth, where Montana’s towns sit at 30% and U.S. towns at 29%. Of the 43 Montana towns we compare, none has a higher home-ownership rate than Mammoth. Mammoth has fewer than 1,000 residents, too few for fair grades; the figures below are still real.
15 people, and everyone knows the way
In a town this size, neighbors are the best guide. Ask them anything.
Moving to Mammoth: who provides what
Mammoth is unincorporated, so Madison County and regional agencies provide most services.
EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Nov 18, 2024.
The data
Ordered by what stands out in Mammoth.
Mammoth faces a high natural-hazard risk, led by avalanches
Mammoth’s FEMA risk score is 74 of 100. FEMA puts 67% of the town’s expected hazard losses down to avalanches, and 20% to inland flooding.
FEMA National Risk Index · OpenFEMA
In Mammoth, a typical July afternoon runs cooler than in the typical Montana or U.S. town
Mammoth brings chilly winters and cool summers. July afternoons reach 74° and January nights drop to 16°.
Typical low → high °F
NOAA U.S. Climate Normals, 1991–2020
How healthy Mammoth is
Mammoth beats the Montana average on 4 of 32 CDC measures and trails it on 7. In Mammoth, 28% of adults feel lonely. Among 42 Montana towns, just 3 have a lower share of adults who sleep under 7 hours than Mammoth.
| Mammoth | Montana towns | U.S. towns | |
|---|---|---|---|
| Sleep under 7 hours (CDC PLACES) | 28% | 32% | 36% |
| Feel lonely (CDC PLACES) | 28% | 31% | 33% |
| High blood pressure (CDC PLACES) | 38% | 32% | 35% |
| Frequent mental distress (CDC PLACES) | 15% | 18% | 17% |
| What stands out | Mammoth | MT |
|---|---|---|
| Fewer adults without reliable transportation | 6.2% | 7.5% |
| Fewer adults in frequent mental distress | 15.2% | 17.2% |
| More adults with heart disease | 8.8% | 6.6% |
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA
Zillow Home Value Index · Redfin Data Center
Everything we know about Mammoth
Colleges nearby
None within 15 miles of Mammoth; the nearest are
About 0 of every 100 Mammoth residents are enrolled in college, against 5 across Montana.
About Mammoth
Census-designated place in Montana, United States
Mammoth is an unincorporated community and census-designated place (CDP) in Madison County, Montana, United States. It is in the northern part of the county, in the valley of the South Boulder River within the northern end of the Tobacco Root Mountains. Via the South Boulder River, it is part of the Jefferson River watershed, one of the headwaters of the Missouri River. Mammoth is reached by South Boulder Road, which leads north 11 miles (18 km) to Montana Highway 359 at a point 5 miles (8 km) south of Cardwell. Mammoth was first listed as a CDP prior to the 2020 census, when it had a population of 4.
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
- Area
- 0.4 sq mi
- Elevation
- 6,014 ft
Questions about Mammoth
Short answers, built from the data on this page.
Is Mammoth, MT a good place to live?
Mammoth has fewer than 1,000 residents, too few for fair grades; the figures below are still real.