Overall
- Flagstaff
- 100.3
- Boise City
- 98.4
Diff -1.9 RPP
Flagstaff vs Boise City
Cost of living comparison based on BEA Regional Price Parities. Boise City is 1.9% less expensive than Flagstaff.
1.9% less expensive
Boise City, ID is 1.9% less expensive than Flagstaff, AZ on BEA Regional Price Parities (overall RPP 98.4 vs 100.3). A $100,000 salary in Flagstaff buys about the same as $98,072 in Boise City; the largest component gap is services.
- Overall RPP 100.3 (Flagstaff) vs 98.4 (Boise City)
- $100k in Flagstaff ≈ $98,072 purchasing power in Boise City
- Services drives the gap (-23.1 RPP points)
RPP parity plate
Pair AZ:ID 100.3→98.4
PHOTO-FINISH · CROSS-STATE · SERVICES-LED · BENCH-CROSS · PP-PAR
- PHOTO-FINISH Photo finish
- CROSS-STATE AZ × ID
- 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.
Flagstaff
100.3
Cost Index
Boise City
98.4
Cost Index
What This Comparison Actually Tells You
Flagstaff, AZ and Boise City, ID 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 Boise City 23.1 points lower than Flagstaff. 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 Flagstaff to $98,072 in Boise City, but it is not a personal spending weight.
Category Breakdown
Goods
- Flagstaff
- 96.2
- Boise City
- 96.2
Diff -0.1 RPP
Services
- Flagstaff
- 93.8
- Boise City
- 70.7
Diff -23.1 RPP
Rents
- Flagstaff
- 109.0
- Boise City
- 105.6
Diff -3.4 RPP
| Category | Flagstaff | Boise City | Difference |
|---|---|---|---|
| Overall | 100.3 | 98.4 | -1.9 |
| Goods | 96.2 | 96.2 | -0.1 |
| Services | 93.8 | 70.7 | -23.1 |
| Rents | 109.0 | 105.6 | -3.4 |
Visual Comparison
Overall
Flagstaff 100.3
Boise City 98.4
Goods
Flagstaff 96.2
Boise City 96.2
Services
Flagstaff 93.8
Boise City 70.7
Rents
Flagstaff 109.0
Boise City 105.6
Vertical line = national average (100)
How the Price Gap Changed
Flagstaff and Boise City 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 | Flagstaff RPP | Boise City RPP | Relative Gap |
|---|---|---|---|
| 2008 | 99.8 | 95.3 | 4.5 points Flagstaff higher |
| 2012 | 99.2 | 96.7 | 2.5 points Flagstaff higher |
| 2016 | 97.7 | 93.2 | 4.5 points Flagstaff higher |
| 2020 | 97.0 | 93.6 | 3.4 points Flagstaff higher |
| 2024 | 100.3 | 98.4 | 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 Flagstaff would need to be in Boise City for the same purchasing power:
| In Flagstaff | In Boise City | Difference |
|---|---|---|
| $50,000 | $49,036 | $-964 |
| $75,000 | $73,554 | $-1,446 |
| $100,000 | $98,072 | $-1,928 |
| $150,000 | $147,108 | $-2,892 |
$ in Flagstaff = in Boise City
Same BEA Regional Price Parity ratio as the table above (100.3 → 98.4), computed live from your number, nothing is sent anywhere.
Frequently Asked Questions
Is Boise City more expensive than Flagstaff?
Boise City is 1.9% less expensive than Flagstaff. The overall cost index is 98.4 vs 100.3 (national average = 100).
What salary in Boise City equals $100K in Flagstaff?
A $100,000 salary in Flagstaff has the same purchasing power as $98,072 in Boise City. This is based on the BEA Regional Price Parity indexes.
How do rents compare between Flagstaff and Boise City?
Rents in Flagstaff are indexed at 109.0 while Boise City is at 105.6 (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.