Overall
Diff +7.4 RPP
Boulder vs Napa
Cost of living comparison based on BEA Regional Price Parities. Napa is 7% more expensive than Boulder.
7% more expensive
Napa, CA is 7% more expensive than Boulder, CO on BEA Regional Price Parities (overall RPP 112.6 vs 105.2). A $100,000 salary in Boulder buys about the same as $106,988 in Napa; the largest component gap is services.
- Overall RPP 105.2 (Boulder) vs 112.6 (Napa)
- $100k in Boulder ≈ $106,988 purchasing power in Napa
- Services drives the gap (+73.8 RPP points)
RPP parity plate
Pair CO:CA 105.2→112.6
TIER-NEAR · CROSS-STATE · SERVICES-LED · BOTH-ABOVE · PP-SHIFT
- TIER-NEAR Near tier
- CROSS-STATE CO × CA
- SERVICES-LED Services-led gap
- BOTH-ABOVE Both above 100
- PP-SHIFT 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 This Comparison Actually Tells You
Both metros exceed the U.S. benchmark of 100. The choice is between two national premiums, so local wages need to clear the higher baseline in either market.
Napa, CA is 7% more expensive than Boulder, CO, a meaningful but not extreme shift. The move decision turns on which budget category creates the 7.4-point overall gap.
Services leads the difference, with Napa 73.8 points higher than Boulder. 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 service-heavy household, test childcare, health, and other locally supplied costs before relying on rent alone. The BEA ratio converts $100,000 in Boulder to $106,988 in Napa, but it is not a personal spending weight.
How the Price Gap Changed
Boulder and Napa share 17 published annual releases from 2008 through 2024. Their overall gap held broadly steady, moving from 6.7 to 7.4 RPP points. Napa remained the higher-index metro in the latest release.
Rents changed the most within this pair: its gap moved 47.4 points between the first and latest shared releases (7.0 to 40.4 points). This describes a relative price-index history, not a forecast or a household budget.
| Release Year | Boulder RPP | Napa RPP | Relative Gap |
|---|---|---|---|
| 2008 | 108.5 | 115.2 | 6.7 points Napa higher |
| 2012 | 107.5 | 111.6 | 4.1 points Napa higher |
| 2016 | 105.6 | 117.8 | 12.2 points Napa higher |
| 2020 | 101.7 | 112.2 | 10.5 points Napa higher |
| 2024 | 105.2 | 112.6 | 7.4 points Napa 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.
Category Breakdown
Goods
Diff +9.1 RPP
Services
Diff +73.8 RPP
Rents
Diff +40.4 RPP
| Category | Boulder | Napa | Difference |
|---|---|---|---|
| Overall | 105.2 | 112.6 | +7.4 |
| Goods | 96.1 | 105.2 | +9.1 |
| Services | 82.7 | 156.5 | +73.8 |
| Rents | 157.0 | 197.4 | +40.4 |
Visual Comparison
Overall
Boulder 105.2
Napa 112.6
Goods
Boulder 96.1
Napa 105.2
Services
Boulder 82.7
Napa 156.5
Rents
Boulder 157.0
Napa 197.4
Vertical line = national average (100)
Salary Equivalents
What a salary in Boulder would need to be in Napa for the same purchasing power:
| In Boulder | In Napa | Difference |
|---|---|---|
| $50,000 | $53,494 | +$3,494 |
| $75,000 | $80,241 | +$5,241 |
| $100,000 | $106,988 | +$6,988 |
| $150,000 | $160,483 | +$10,483 |
$ in Boulder = in Napa
Same BEA Regional Price Parity ratio as the table above (105.2 → 112.6), computed live from your number, nothing is sent anywhere.
Boulder
105.2
Cost Index
Napa
112.6
Cost Index
Frequently Asked Questions
Is Napa more expensive than Boulder?
Napa is 7% more expensive than Boulder. The overall cost index is 112.6 vs 105.2 (national average = 100).
What salary in Napa equals $100K in Boulder?
A $100,000 salary in Boulder has the same purchasing power as $106,988 in Napa. This is based on the BEA Regional Price Parity indexes.
How do rents compare between Boulder and Napa?
Rents in Boulder are indexed at 157.0 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.