Property Tax in Granite County
via TaxByCounty
Granite's tax rate near national median
Granite County's effective rate of 0.607% sits comfortably below the national median of 0.84%, placing it in the lower half of U.S. counties. The median tax bill of $2,061 mirrors national patterns, though Granite homes are valued higher at $339,500 versus the national median of $281,900.
Below Montana's average across the board
At 0.607% effective rate, Granite County ranks in the lower half of Montana's 56 counties, paying less than the state average of 0.767%. The $2,061 median tax reflects higher-value properties typical of this mountainous region.
Mid-range among southwest Montana peers
Granite's 0.607% rate sits between Jefferson County's 0.557% and Lake County's 0.660%, offering moderate relief in southwest Montana. Property values here are notably higher, resulting in mid-range absolute tax bills despite favorable rates.
About $2,061 yearly on median home
A median Granite County home valued at $339,500 results in annual property taxes of $2,061, or roughly $172 per month. Mortgage-holders pay an additional $75 annually in escrow taxes.
Challenge assessments on higher-value homes
Properties valued above $300,000 can accumulate significant overassessment costs quickly—a 5% inflated valuation costs $1,000+ annually. Granite County homeowners should compare their assessments to recent comparable sales and appeal if values don't align.