Montana Cost of Living Calculator (Purchasing Power & Relocation Index)

The housing index is the number to watch in Montana: an index of 116.8 against the 100.0 national baseline, and the single largest contributor to the state's overall cost position.

That pulls the composite index to 104.2 overall, putting Montana 4.2% above the national average and in the pricier upper third of all state rankings. Utilities (index 91.2) and groceries (index 103.5) contribute less to the gap.

Montana is a sparsely populated Mountain West state, and this composite-versus-component split matters most for anyone comparing job offers or retirement destinations: a household that shops around housing costs alone will misjudge the state's overall affordability picture.

In dollar terms, a $75,000 household budget would need to move by about $3,150 to buy the same basket of goods in Montana, and the housing index, 16.8 points above the national baseline, accounts for most of that shift. The published table doesn't split out transportation or healthcare pricing on their own, but both feed into the composite figure alongside a broader miscellaneous-goods basket.

Key Index Components for Montana:

• Composite Benchmark Index: 104.2 (Rank #18)
• Housing Cost Index: 116.8
• Utilities Cost Index: 91.2
• Grocery Cost Index: 103.5

Montana sits 4.2% above the national baseline, and that mild composite covers a real split. Housing reads 116.8 while utilities are 91.2, one of the lower readings in the country, and groceries at 103.5 are slightly above the national line. Rank 18 of 50. The calculator uses the composite of 104.2.

1. Baseline budget. You enter annual household spending priced at the national benchmark, index 100.0.
2. Composite lookup. Montana's composite index of 104.2 is read from the 2026 MERIC state table, along with its rank of #18 among the 50 states.
3. Single-factor scaling. The baseline is multiplied by 104.2 and divided by 100. Housing 116.8, groceries 103.5 and utilities 91.2 are shown for context and are not weighted separately here, because MERIC's composite already applies its own weights. Cheap power offsets resort-market housing inside the composite, so the number understates costs for anyone buying into Bozeman, Whitefish or Missoula.
4. Differential. The dollar and percentage difference against the baseline is taken from the scaled result, which is what the headline output and the monthly view report.

Using this calculator's baseline scenario: a household needing $75,000.00 a year to sustain a standard basket of goods (housing, groceries, utilities, transportation, and healthcare), priced at the U.S. national average (composite index 100.0).

1. National baseline. $75,000.00 is the reference spending level at the national-average price level (index 100.0).
2. Apply Montana's composite index. Montana's composite index of 104.2 (rank #18 nationally) means local prices run 4.2% above the national basket. Scaling: $75,000.00 × (104.2 ÷ 100) = $78,150.00.
3. Dollar differential. $78,150.00 − $75,000.00 = +$3,150.00, so a household living in Montana needs its budget to grow by that amount to match the same standard of living.
4. Percentage and monthly view. That is +4.2% of the baseline, or $6,512.50/mo in Montana versus $6,250.00/mo nationally.

Montana runs only modestly pricier than the national baseline, with housing costs (index 116.8, 16.8 points above average) the largest single driver of the gap.

The schedule under the result does one thing twelve times: it steps the budget tier and prices each tier at the composite 104.2. One variable moves per row, so the Equivalent Budget column is a single series and the table can be read top to bottom without a caveat.

Row 1 takes a $12,500 tier and returns $13,025.00. Row 2 takes $25,000 and returns $26,050.00. Row 3 takes $37,500 and returns $39,075.00. Row 4 takes $50,000 and returns $52,100.00, and its difference column reads +$2,100.00, positive as it must be in a state whose overall cost of living sits above the national average. Every $12,500 step in the tier adds exactly $13,025.00, through to row twelve at $156,300.00.

Row 6 is the one worth finding, because it lands on your own entered budget. At the $75,000 baseline it returns $78,150.00, the headline figure to the cent, with a difference column of +$3,150.00. A reader scanning down the table and stopping at their own budget gets the same number the result panel shows.

Right method against wrong method, priced. The correct Montana figure for a $75,000 national-average budget is $75,000 x 104.2 / 100 = $78,150.00. Applying the housing index of 116.8 to the entire budget instead, which is what a housing-first comparison amounts to, gives $87,600.00. That overstates the cost of living in Montana by $9,450.00 a year, or $787.50 a month, because it prices groceries, utilities and everything else at Bozeman housing inflation. The calculator never makes that substitution: 116.8 is printed as context and enters no arithmetic on this page.

Each additional $1,000 of national-baseline budget costs $1,042.00 in Montana. Moving the entry from $75,000 to $76,000 moves the adjusted figure from $78,150.00 to $79,192.00. The ratio never changes, because the engine applies one factor and the differential percentage stays pinned at 4.2% at every budget level, from $10,000 to $10,000,000.

The reverse question: what national-average budget corresponds to $100,000 of Montana spending? At a $95,969 baseline the adjusted figure is $99,999.70; at $95,970 it is $100,000.74. So roughly $95,970 nationally buys what $100,000 buys in Montana, and the $4,030 gap is the whole of what this calculator measures.

• No category weighting is performed. The engine multiplies your budget by the single composite figure of 104.2. The housing, grocery and utilities indices shown on this page are displayed for context and are never combined, weighted or applied to portions of your budget.
• The schedule carries no category detail at all. All twelve rows use the 104.2 composite, so the Equivalent Budget column is one clean series and the Difference column is a flat 4.2% of the tier beside it. Housing, groceries and utilities appear nowhere inside it.
• Intra-state variance between major metropolitan urban centers and rural counties within Montana. The composite of 104.2 is a single statewide figure, so Bozeman, Whitefish and Glasgow all return the same $78,150.00 on a $75,000 budget.
• Discretionary lifestyle choices, private schooling, and luxury expenditures.
• State income and property tax impacts on disposable take-home salary.
• Dynamic seasonal utility price surges during peak winter heating or summer cooling months.

• Comparing State Averages Instead of Metro Areas: Living in a major metro area is often 20%-40% more expensive than the statewide average.
• Focusing Solely on Housing: Overlooking higher utility, transportation, or food costs in colder or remote regions.
• Ignoring Net Take-Home Pay: Comparing gross salary without factoring in state income and sales tax differentials.
• Failing to Adjust for Family Size: Larger households experience disproportionately higher grocery and healthcare expenditures.

• U.S. Bureau of Economic Analysis (BEA): Regional Price Parities. bea.gov/data/prices-inflation/regional-price-parities-state-and-metro-area
• U.S. Bureau of Labor Statistics (BLS): Consumer Expenditure Survey. bls.gov/cex
• Montana Department of Revenue, the official state tax authority for Montana rates, rules and forms. mtrevenue.gov

Also consulted: MERIC: Cost of Living Data Series (2025/2026).