Yellowstone County, MT real estate

What the numbers say

Yellowstone County, MT real estate at a glance

By AstroCore · Realtor.com, US Census and Freddie Mac data

In September 2026, the median home in Yellowstone County listed for $442,400, down 0.6% from a year earlier. That is 30% below the Montana median of $635,000.

Homes spent a median of 53 days on the market, slower than 50 days a year ago. That makes Yellowstone County the #1 fastest-selling of 6 Montana counties we track.

Homeowners in Yellowstone County pay a median of $2,832 a year in property taxes on a median home value of $349,500, an effective rate of about 0.81%. The Montana average is 0.72%, which makes Yellowstone County the #40 lowest-tax of 56 counties in the state with published tax data.

Renters pay a median of $1,131 a month, and $1,120 for a two-bedroom. At today's prices a typical home costs about 33 times a year's rent, which generally favors renting over buying in the short term.

With 20% down and today's 7.24% average 30-year rate, the monthly payment on a $442,000 home here comes to about $2,895 including property tax and insurance. Lenders typically want that to be under 28% of income, which works out to roughly $124,000 a year (the median household here earns $76,570).