Overall
- Boise City
- 98.4
- Flagstaff
- 100.3
Diff +1.9 RPP
Boise City vs Flagstaff
Cost of living comparison based on BEA Regional Price Parities. Flagstaff is 2% more expensive than Boise City.
2% more expensive
Flagstaff, AZ is 2% more expensive than Boise City, ID on BEA Regional Price Parities (overall RPP 100.3 vs 98.4). A $100,000 salary in Boise City buys about the same as $101,966 in Flagstaff; the largest component gap is services.
- Overall RPP 98.4 (Boise City) vs 100.3 (Flagstaff)
- $100k in Boise City ≈ $101,966 purchasing power in Flagstaff
- Services drives the gap (+23.1 RPP points)
RPP parity plate
Pair ID:AZ 98.4→100.3
PHOTO-FINISH · CROSS-STATE · SERVICES-LED · BENCH-CROSS · PP-PAR
- PHOTO-FINISH Photo finish
- CROSS-STATE ID × AZ
- SERVICES-LED Services-led gap
- BENCH-CROSS Benchmark cross
- PP-PAR PP near-par
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.
Boise City
98.4
Cost Index
Flagstaff
100.3
Cost Index
What This Comparison Actually Tells You
Boise City, ID and Flagstaff, AZ are a photo finish on overall price level, only 1.9 RPP points apart. A salary conversion is therefore a fine adjustment, not evidence of a fundamentally different cost regime.
Services leads the difference, with Flagstaff 23.1 points higher than Boise City. 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.
This route crosses the national benchmark: Flagstaff is above 100 while Boise City is below it. That makes the move a change of price regime, not merely a rank swap.
For a service-heavy household, test childcare, health, and other locally supplied costs before relying on rent alone. The BEA ratio converts $100,000 in Boise City to $101,966 in Flagstaff, but it is not a personal spending weight.
Category Breakdown
Goods
- Boise City
- 96.2
- Flagstaff
- 96.2
Diff +0.1 RPP
Services
- Boise City
- 70.7
- Flagstaff
- 93.8
Diff +23.1 RPP
Rents
- Boise City
- 105.6
- Flagstaff
- 109.0
Diff +3.4 RPP
| Category | Boise City | Flagstaff | Difference |
|---|---|---|---|
| Overall | 98.4 | 100.3 | +1.9 |
| Goods | 96.2 | 96.2 | +0.1 |
| Services | 70.7 | 93.8 | +23.1 |
| Rents | 105.6 | 109.0 | +3.4 |
Visual Comparison
Overall
Boise City 98.4
Flagstaff 100.3
Goods
Boise City 96.2
Flagstaff 96.2
Services
Boise City 70.7
Flagstaff 93.8
Rents
Boise City 105.6
Flagstaff 109.0
Vertical line = national average (100)
How the Price Gap Changed
Boise City and Flagstaff share 17 published annual releases from 2008 through 2024. Their overall gap narrowed, moving from 4.5 to 1.9 RPP points. Flagstaff remained the higher-index metro in the latest release.
Services changed the most within this pair: its gap moved 7.7 points between the first and latest shared releases (15.4 to 23.1 points). This describes a relative price-index history, not a forecast or a household budget.
| Release Year | Boise City RPP | Flagstaff RPP | Relative Gap |
|---|---|---|---|
| 2008 | 95.3 | 99.8 | 4.5 points Flagstaff higher |
| 2012 | 96.7 | 99.2 | 2.5 points Flagstaff higher |
| 2016 | 93.2 | 97.7 | 4.5 points Flagstaff higher |
| 2020 | 93.6 | 97.0 | 3.4 points Flagstaff higher |
| 2024 | 98.4 | 100.3 | 1.9 points Flagstaff 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.
Salary Equivalents
What a salary in Boise City would need to be in Flagstaff for the same purchasing power:
| In Boise City | In Flagstaff | Difference |
|---|---|---|
| $50,000 | $50,983 | +$983 |
| $75,000 | $76,474 | +$1,474 |
| $100,000 | $101,966 | +$1,966 |
| $150,000 | $152,948 | +$2,948 |
$ in Boise City = in Flagstaff
Same BEA Regional Price Parity ratio as the table above (98.4 → 100.3), computed live from your number, nothing is sent anywhere.
Frequently Asked Questions
Is Flagstaff more expensive than Boise City?
Flagstaff is 2% more expensive than Boise City. The overall cost index is 100.3 vs 98.4 (national average = 100).
What salary in Flagstaff equals $100K in Boise City?
A $100,000 salary in Boise City has the same purchasing power as $101,966 in Flagstaff. This is based on the BEA Regional Price Parity indexes.
How do rents compare between Boise City and Flagstaff?
Rents in Boise City are indexed at 105.6 while Flagstaff is at 109.0 (national average = 100). Flagstaff has higher rents.
Data sources
- BEA Regional Price Parities (RPP), the cost-of-living indices shown on this page
- U.S. Census Bureau, American Community Survey (ACS), gross-rent observations behind the rents component
- BLS Consumer Price Index (CPI), goods and services price relatives
- BLS Occupational Employment and Wage Statistics (OEWS), labor-driven services component
- HUD Fair Market Rents (FMR), 40th-percentile rent cross-reference
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.