Overall
- Trenton-Princeton
- 103.2
- Portland-South Portland
- 101.9
Diff -1.3 RPP
Trenton-Princeton vs Portland-South Portland
Cost of living comparison based on BEA Regional Price Parities. Portland-South Portland is 1.3% less expensive than Trenton-Princeton.
1.3% less expensive
Portland-South Portland, ME is 1.3% less expensive than Trenton-Princeton, NJ on BEA Regional Price Parities (overall RPP 101.9 vs 103.2). A $100,000 salary in Trenton-Princeton buys about the same as $98,719 in Portland-South Portland; the largest component gap is rents.
- Overall RPP 103.2 (Trenton-Princeton) vs 101.9 (Portland-South Portland)
- $100k in Trenton-Princeton ≈ $98,719 purchasing power in Portland-South Portland
- Rents drives the gap (-29.9 RPP points)
RPP parity plate
Pair NJ:ME 103.2→101.9
PHOTO-FINISH · CROSS-STATE · SPLIT-BUDGET · BOTH-ABOVE · PP-PAR
- PHOTO-FINISH Photo finish
- CROSS-STATE NJ × ME
- SPLIT-BUDGET Split budget
- BOTH-ABOVE Both above 100
- 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.
Trenton-Princeton
103.2
Cost Index
Portland-South Portland
101.9
Cost Index
What This Comparison Actually Tells You
Trenton-Princeton, NJ and Portland-South Portland, ME are a photo finish on overall price level, only 1.3 RPP points apart. A salary conversion is therefore a fine adjustment, not evidence of a fundamentally different cost regime.
Rents creates the largest separation: Portland-South Portland is 29.9 points lower. But services move against the overall direction, so this is a split budget rather than a clean across-the-board winner.
Comparable population context is incomplete for this pair, so no market-scale explanation is inferred from the price indexes.
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.
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 Trenton-Princeton corresponds to $98,719 in Portland-South Portland.
Category Breakdown
Goods
- Trenton-Princeton
- 99.8
Diff -2.6 RPP
Services
- Trenton-Princeton
- 112.3
- Portland-South Portland
- 134.6
Diff +22.3 RPP
Rents
- Trenton-Princeton
- 135.1
- Portland-South Portland
- 105.2
Diff -29.9 RPP
| Category | Trenton-Princeton | Portland-South Portland | Difference |
|---|---|---|---|
| Overall | 103.2 | 101.9 | -1.3 |
| Goods | 99.8 | 97.2 | -2.6 |
| Services | 112.3 | 134.6 | +22.3 |
| Rents | 135.1 | 105.2 | -29.9 |
Visual Comparison
Overall
Trenton-Princeton 103.2
Portland-South Portland 101.9
Goods
Trenton-Princeton 99.8
Portland-South Portland 97.2
Services
Trenton-Princeton 112.3
Portland-South Portland 134.6
Rents
Trenton-Princeton 135.1
Portland-South Portland 105.2
Vertical line = national average (100)
Salary Equivalents
What a salary in Trenton-Princeton would need to be in Portland-South Portland for the same purchasing power:
| In Trenton-Princeton | In Portland-South Portland | Difference |
|---|---|---|
| $50,000 | $49,359 | $-641 |
| $75,000 | $74,039 | $-961 |
| $100,000 | $98,719 | $-1,281 |
| $150,000 | $148,078 | $-1,922 |
$ in Trenton-Princeton = in Portland-South Portland
Same BEA Regional Price Parity ratio as the table above (103.2 → 101.9), computed live from your number, nothing is sent anywhere.
Frequently Asked Questions
Is Portland-South Portland more expensive than Trenton-Princeton?
Portland-South Portland is 1.3% less expensive than Trenton-Princeton. The overall cost index is 101.9 vs 103.2 (national average = 100).
What salary in Portland-South Portland equals $100K in Trenton-Princeton?
A $100,000 salary in Trenton-Princeton has the same purchasing power as $98,719 in Portland-South Portland. This is based on the BEA Regional Price Parity indexes.
How do rents compare between Trenton-Princeton and Portland-South Portland?
Rents in Trenton-Princeton are indexed at 135.1 while Portland-South Portland is at 105.2 (national average = 100). Trenton-Princeton 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.