Overall
- Sierra Vista-Douglas
- 89.2
- Napa
- 112.6
Diff +23.3 RPP
Sierra Vista-Douglas vs Napa
Cost of living comparison based on BEA Regional Price Parities. Napa is 26.1% more expensive than Sierra Vista-Douglas.
26.1% more expensive
Napa, CA is 26.1% more expensive than Sierra Vista-Douglas, AZ on BEA Regional Price Parities (overall RPP 112.6 vs 89.2). A $100,000 salary in Sierra Vista-Douglas buys about the same as $126,121 in Napa; the largest component gap is rents.
- Overall RPP 89.2 (Sierra Vista-Douglas) vs 112.6 (Napa)
- $100k in Sierra Vista-Douglas ≈ $126,121 purchasing power in Napa
- Rents drives the gap (+135.5 RPP points)
RPP parity plate
Pair AZ:CA 89.2→112.6
TIER-GAP · CROSS-STATE · RENT-LED · BENCH-CROSS · PP-STEEP
- TIER-GAP Clear tier gap
- CROSS-STATE AZ × CA
- RENT-LED Rent-led gap
- BENCH-CROSS Benchmark cross
- PP-STEEP Steep PP convert
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.
Salary Equivalents
What a salary in Sierra Vista-Douglas would need to be in Napa for the same purchasing power:
| In Sierra Vista-Douglas | In Napa | Difference |
|---|---|---|
| $50,000 | $63,060 | +$13,060 |
| $75,000 | $94,591 | +$19,591 |
| $100,000 | $126,121 | +$26,121 |
| $150,000 | $189,181 | +$39,181 |
$ in Sierra Vista-Douglas = in Napa
Same BEA Regional Price Parity ratio as the table above (89.2 → 112.6), computed live from your number, nothing is sent anywhere.
What This Comparison Actually Tells You
Sierra Vista-Douglas, AZ and Napa, CA sit in clearly different price tiers, separated by 23.3 RPP points. At this distance, treating the same nominal salary as equivalent would materially change purchasing power.
This route crosses the national benchmark: Napa is above 100 while Sierra Vista-Douglas is below it. That makes the move a change of price regime, not merely a rank swap.
Rents leads the difference, with Napa 135.5 points higher than Sierra Vista-Douglas. 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 Sierra Vista-Douglas corresponds to $126,121 in Napa.
Category Breakdown
Goods
- Sierra Vista-Douglas
- 96.2
- Napa
- 105.2
Diff +8.9 RPP
Services
- Sierra Vista-Douglas
- 91.9
- Napa
- 156.5
Diff +64.6 RPP
Rents
- Sierra Vista-Douglas
- 61.9
- Napa
- 197.4
Diff +135.5 RPP
| Category | Sierra Vista-Douglas | Napa | Difference |
|---|---|---|---|
| Overall | 89.2 | 112.6 | +23.3 |
| Goods | 96.2 | 105.2 | +8.9 |
| Services | 91.9 | 156.5 | +64.6 |
| Rents | 61.9 | 197.4 | +135.5 |
Visual Comparison
Overall
Sierra Vista-Douglas 89.2
Napa 112.6
Goods
Sierra Vista-Douglas 96.2
Napa 105.2
Services
Sierra Vista-Douglas 91.9
Napa 156.5
Rents
Sierra Vista-Douglas 61.9
Napa 197.4
Vertical line = national average (100)
Sierra Vista-Douglas
89.2
Cost Index
Napa
112.6
Cost Index
Frequently Asked Questions
Is Napa more expensive than Sierra Vista-Douglas?
Napa is 26.1% more expensive than Sierra Vista-Douglas. The overall cost index is 112.6 vs 89.2 (national average = 100).
What salary in Napa equals $100K in Sierra Vista-Douglas?
A $100,000 salary in Sierra Vista-Douglas has the same purchasing power as $126,121 in Napa. This is based on the BEA Regional Price Parity indexes.
How do rents compare between Sierra Vista-Douglas and Napa?
Rents in Sierra Vista-Douglas are indexed at 61.9 while Napa is at 197.4 (national average = 100). Napa 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.