Home values, rents and more in Big Arm, MT
September 2026 figures from Zillow and the U.S. Census Bureau · updated 2026-11-07
Open Big Arm in ProMap- Under $660k
- $660k–$750k
- $750k–$820k
- $820k–$850k
- $850k+
- No data
How Big Arm compares
The typical home in Big Arm, MT is worth about $893,000, according to the Zillow Home Value Index for September 2026. Home values in Big Arm are 1.9 times the typical value in Montana ($467,000) and 2.4 times the U.S. typical value ($366,000).
Over the past year, home values in Big Arm rose 0.1%, compared with +2.0% in Montana and +1.2% nationally.
About 190 people live in Big Arm (American Community Survey 2020–24).
Big Arm has the 6th-highest typical home value of the 199 cities in Montana with Zillow figures.
Part of: Lake County, MT · Montana
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- 5- and 10-year price changes
- Days on market and months of supply
- Price cuts and sale-to-list ratio
- Price-to-income and monthly cost to buy
- Crime rates
- Homeowners insurance premiums
- Commute time to downtown
- Flood, wildfire and natural hazard risk
- Property-tax rate
- 2024 presidential vote
- Age, education and household make-up
- Amenities and transit nearby
Nearby cities
ZIP codes in Big Arm, MT
Sources
Home values: Zillow Home Value Index (ZHVI), all homes, middle tier, smoothed and seasonally adjusted, September 2026. Rents: Zillow Observed Rent Index (ZORI), seasonally adjusted. Population: Census population estimates (July 2025) for states, metros and counties; ACS 2020–24 for cities and ZIP codes. Income: U.S. Census Bureau, ACS 2020–24 5-year estimates. Boundaries: U.S. Census Bureau cartographic boundary files. Compiled by Home Economics.
"Typical" is Zillow's middle-tier value (homes between the 35th and 65th percentiles), not a median sale price. Changes are over the 12 months to September 2026.