Overall
- Boston-Cambridge-Newton
- 108.3
- Trenton-Princeton
- 103.2
Diff -5.1 RPP
Boston-Cambridge-Newton vs Trenton-Princeton
Cost of living comparison based on BEA Regional Price Parities. Trenton-Princeton is 4.7% less expensive than Boston-Cambridge-Newton.
4.7% less expensive
Trenton-Princeton, NJ is 4.7% less expensive than Boston-Cambridge-Newton, MA-NH on BEA Regional Price Parities (overall RPP 103.2 vs 108.3). A $100,000 salary in Boston-Cambridge-Newton buys about the same as $95,302 in Trenton-Princeton; the largest component gap is services.
- Overall RPP 108.3 (Boston-Cambridge-Newton) vs 103.2 (Trenton-Princeton)
- $100k in Boston-Cambridge-Newton ≈ $95,302 purchasing power in Trenton-Princeton
- Services drives the gap (-36.5 RPP points)
RPP parity plate
Pair MA:NJ 108.3→103.2
TIER-NEAR · CROSS-STATE · SPLIT-BUDGET · BOTH-ABOVE · PP-SHIFT
- TIER-NEAR Near tier
- CROSS-STATE MA × NJ
- SPLIT-BUDGET Split budget
- 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.
Category Breakdown
Goods
- Trenton-Princeton
- 99.8
Diff +0.1 RPP
Services
- Boston-Cambridge-Newton
- 148.8
- Trenton-Princeton
- 112.3
Diff -36.5 RPP
Rents
- Boston-Cambridge-Newton
- 148.4
- Trenton-Princeton
- 135.1
Diff -13.3 RPP
| Category | Boston-Cambridge-Newton | Trenton-Princeton | Difference |
|---|---|---|---|
| Overall | 108.3 | 103.2 | -5.1 |
| Goods | 99.7 | 99.8 | +0.1 |
| Services | 148.8 | 112.3 | -36.5 |
| Rents | 148.4 | 135.1 | -13.3 |
Visual Comparison
Overall
Boston-Cambridge-Newton 108.3
Trenton-Princeton 103.2
Goods
Boston-Cambridge-Newton 99.7
Trenton-Princeton 99.8
Services
Boston-Cambridge-Newton 148.8
Trenton-Princeton 112.3
Rents
Boston-Cambridge-Newton 148.4
Trenton-Princeton 135.1
Vertical line = national average (100)
What This Comparison Actually Tells You
Services creates the largest separation: Trenton-Princeton is 36.5 points lower. But goods move against the overall direction, so this is a split budget rather than a clean across-the-board winner.
Trenton-Princeton, NJ is 4.7% less expensive than Boston-Cambridge-Newton, MA-NH, a meaningful but not extreme shift. The move decision turns on which budget category creates the 5.1-point overall gap.
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.
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 Boston-Cambridge-Newton to $95,302 in Trenton-Princeton, but it is not a personal spending weight.
Boston-Cambridge-Newton
108.3
Cost Index
Trenton-Princeton
103.2
Cost Index
Salary Equivalents
What a salary in Boston-Cambridge-Newton would need to be in Trenton-Princeton for the same purchasing power:
| In Boston-Cambridge-Newton | In Trenton-Princeton | Difference |
|---|---|---|
| $50,000 | $47,651 | $-2,349 |
| $75,000 | $71,477 | $-3,523 |
| $100,000 | $95,302 | $-4,698 |
| $150,000 | $142,953 | $-7,047 |
$ in Boston-Cambridge-Newton = in Trenton-Princeton
Same BEA Regional Price Parity ratio as the table above (108.3 → 103.2), computed live from your number, nothing is sent anywhere.
How the Price Gap Changed
Boston-Cambridge-Newton and Trenton-Princeton share 17 published annual releases from 2008 through 2024. Their overall gap widened, moving from 3.1 to 5.1 RPP points. Boston-Cambridge-Newton remained the higher-index metro in the latest release.
Services changed the most within this pair: its gap moved 23.7 points between the first and latest shared releases (12.8 to 36.5 points). This describes a relative price-index history, not a forecast or a household budget.
| Release Year | Boston-Cambridge-Newton RPP | Trenton-Princeton RPP | Relative Gap |
|---|---|---|---|
| 2008 | 107.7 | 104.6 | 3.1 points Boston-Cambridge-Newton higher |
| 2012 | 106.0 | 108.4 | 2.4 points Trenton-Princeton higher |
| 2016 | 110.1 | 108.8 | 1.3 points Boston-Cambridge-Newton higher |
| 2020 | 112.5 | 104.2 | 8.4 points Boston-Cambridge-Newton higher |
| 2024 | 108.3 | 103.2 | 5.1 points Boston-Cambridge-Newton 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.
Frequently Asked Questions
Is Trenton-Princeton more expensive than Boston-Cambridge-Newton?
Trenton-Princeton is 4.7% less expensive than Boston-Cambridge-Newton. The overall cost index is 103.2 vs 108.3 (national average = 100).
What salary in Trenton-Princeton equals $100K in Boston-Cambridge-Newton?
A $100,000 salary in Boston-Cambridge-Newton has the same purchasing power as $95,302 in Trenton-Princeton. This is based on the BEA Regional Price Parity indexes.
How do rents compare between Boston-Cambridge-Newton and Trenton-Princeton?
Rents in Boston-Cambridge-Newton are indexed at 148.4 while Trenton-Princeton is at 135.1 (national average = 100). Boston-Cambridge-Newton 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.