Home › Counties › Petroleum County, MT
The median home value in Petroleum County, MT is $201,284 as of 2026-07-31, down 0.68% from a year earlier.
Median Home Value
$201,284
Year-over-Year
-0.68%
National Rank
#1920 of 3071
Petroleum County ranks 46th out of 56 counties in MT by median home price, and is -14.1% below the U.S. national median of $234,352. Within MT, the typical county has a median home value of $295,182, making Petroleum County -31.8% below the MT state median.
Households here earn a median of $60,208 a year against a typical home value of $201,284 — a price-to-income ratio of 3.3×, above the 3× level usually considered comfortable, but below 5×. That is less affordable than roughly 38% of U.S. counties. (How this is calculated.)
The median home value in Petroleum County is $201,284. That's down 0.68% from a year earlier. That is about 14.1% below the U.S. national county median of $234,352, and makes Petroleum County the 46th most expensive of 56 counties in Montana.
Median household income here is $60,208, so a typical home costs about 3.3× annual household earnings — moderately expensive compared with other U.S. counties.
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