Overall
- Great Falls
- 96.8
- Olympia-Lacey-Tumwater
- 103.7
Diff +6.8 RPP
Cost of living comparison based on BEA Regional Price Parities. Olympia-Lacey-Tumwater is 7% more expensive than Great Falls.
Olympia-Lacey-Tumwater, WA is 7% more expensive than Great Falls, MT on BEA Regional Price Parities (overall RPP 103.7 vs 96.8). A $100,000 salary in Great Falls buys about the same as $107,047 in Olympia-Lacey-Tumwater; the largest component gap is rents.
RPP parity plate
Pair MT:WA 96.8→103.7
TIER-NEAR · CROSS-STATE · RENT-LED · BENCH-CROSS · PP-SHIFT
Instrument codes from this pair's BEA Regional Price Parities (overall · goods · services · rents · national benchmark 100 · purchasing-power conversion), not a ranking or recommendation.
What a salary in Great Falls would need to be in Olympia-Lacey-Tumwater for the same purchasing power:
| In Great Falls | In Olympia-Lacey-Tumwater | Difference |
|---|---|---|
| $50,000 | $53,524 | +$3,524 |
| $75,000 | $80,286 | +$5,286 |
| $100,000 | $107,047 | +$7,047 |
| $150,000 | $160,571 | +$10,571 |
Same BEA Regional Price Parity ratio as the table above (96.8 → 103.7), computed live from your number, nothing is sent anywhere.
Olympia-Lacey-Tumwater, WA is 7% more expensive than Great Falls, MT, a meaningful but not extreme shift. The move decision turns on which budget category creates the 6.8-point overall gap.
This route crosses the national benchmark: Olympia-Lacey-Tumwater is above 100 while Great Falls is below it. That makes the move a change of price regime, not merely a rank swap.
Rents leads the difference, with Olympia-Lacey-Tumwater 19.6 points higher than Great Falls. Goods, services, and rents all point in the same broad direction, making the headline comparison more transferable across household types.
Comparable population context is incomplete for this pair, so no market-scale explanation is inferred from the price indexes.
For a housing-sensitive move, validate the rent gap first: HUD Fair Market Rent and the actual unit size can overturn what the blended index implies. On the BEA ratio alone, $100,000 in Great Falls corresponds to $107,047 in Olympia-Lacey-Tumwater.
Diff +6.8 RPP
Diff +9.0 RPP
Diff +18.7 RPP
Diff +19.6 RPP
| Category | Great Falls | Olympia-Lacey-Tumwater | Difference |
|---|---|---|---|
| Overall | 96.8 | 103.7 | +6.8 |
| Goods | 96.0 | 105.0 | +9.0 |
| Services | 73.0 | 91.7 | +18.7 |
| Rents | 97.1 | 116.7 | +19.6 |
Vertical line = national average (100)
Great Falls and Olympia-Lacey-Tumwater share 17 published annual releases from 2008 through 2024. Their overall gap narrowed, moving from 20.1 to 6.8 RPP points. Olympia-Lacey-Tumwater remained the higher-index metro in the latest release.
Rents changed the most within this pair: its gap moved 52.5 points between the first and latest shared releases (72.0 to 19.6 points). This describes a relative price-index history, not a forecast or a household budget.
| Release Year | Great Falls RPP | Olympia-Lacey-Tumwater RPP | Relative Gap |
|---|---|---|---|
| 2008 | 85.3 | 105.4 | 20.1 points Olympia-Lacey-Tumwater higher |
| 2012 | 92.3 | 101.3 | 9.0 points Olympia-Lacey-Tumwater higher |
| 2016 | 88.0 | 106.0 | 18.0 points Olympia-Lacey-Tumwater higher |
| 2020 | 87.0 | 101.9 | 14.9 points Olympia-Lacey-Tumwater higher |
| 2024 | 96.8 | 103.7 | 6.8 points Olympia-Lacey-Tumwater higher |
Annual BEA Regional Price Parity releases; a higher index means a higher price level relative to the national average of 100. Selected years shown from the full shared series.
Olympia-Lacey-Tumwater is 7% more expensive than Great Falls. The overall cost index is 103.7 vs 96.8 (national average = 100).
A $100,000 salary in Great Falls has the same purchasing power as $107,047 in Olympia-Lacey-Tumwater. This is based on the BEA Regional Price Parity indexes.
Rents in Great Falls are indexed at 97.1 while Olympia-Lacey-Tumwater is at 116.7 (national average = 100). Olympia-Lacey-Tumwater has higher rents.
Every figure on PlainCost is rendered directly from BEA Regional Price Parity source data, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, our changelog, or report a data error. Data current as of 2026-08-11. Rankings measure the published cost-of-living index only; we don't recommend where to live or rate any metro's quality of life.