Market Overview
Home Prices in Big Arm, MT
The median home value in Big Arm, MT is $904,271 as of mid-2026, according to Zillow's Home Value Index (ZHVI).That's down 1.3% compared to a year ago and down 3.6% from two years prior.
Compared to the U.S. national median of $410,000, homes in Big Arm are priced121% above average.
Over the past five years, Big Arm home values have risen by approximately36.6%, reflecting strong long-term appreciation in this market.
Price History
Big Arm Home Price Trend
2020
$496,184
$496K
—
2021
$661,775
$662K
+33.4%
2022
$888,949
$889K
+34.3%
2023
$840,649
$841K
-5.4%
2024
$949,922
$950K
+13.0%
2025
$915,737
$916K
-3.6%
2026
$904,271
$904K
-1.3%
City Comparison
Big Arm vs. National Median
🏠 Big Arm
$904,271
National Median
$410,000
At $904,271, homes in Big Arm cost 121% above the national median of $410,000. Buyers in Big Arm should expect to pay a premium compared to most U.S. markets.
Affordability
What Does It Cost to Buy in Big Arm?
20% Down Payment
$180,854
on $904,271
Monthly P&I
$4,716/mo
30-yr @ 6.8%
Total Monthly Est.
~$5,989/mo
incl. taxes & insurance
Income Needed
$239,560
gross annual (30% rule)
10% Down Option
$90,427
+ PMI applies
Loan Amount (20% dn)
$723,417
at current rates
Estimates assume a 30-year fixed mortgage at 6.8%. Monthly total includes estimated property taxes and homeowner's insurance. Actual costs vary.
FAQ
Frequently Asked Questions
What is the average home price in Big Arm, MT?
The median home value in Big Arm is $904,271 as of mid-2026, according to Zillow's Home Value Index (ZHVI). That's down 1.3% year-over-year.
How much have home prices changed in Big Arm?
Over the past year, home values in Big Arm have decreased by 1.3%. Over five years, prices have risen approximately 36.6%.
How much do I need to earn to buy a home in Big Arm?
To comfortably afford the median home price of $904,271 with a 20% down payment ($180,854) at today's rates (6.8%), you'd need a gross annual income of approximately $239,560. This assumes keeping total housing costs at or below 30% of gross income.
How does Big Arm compare to the national average home price?
The national median home value is approximately $410,000. At $904,271, homes in Big Arm are 121% above the national average.