Overall
- Trenton-Princeton
- 103.2
- Ann Arbor
- 100.9
Diff -2.3 RPP
Trenton-Princeton vs Ann Arbor
Cost of living comparison based on BEA Regional Price Parities. Ann Arbor is 2.2% less expensive than Trenton-Princeton.
2.2% less expensive
Ann Arbor, MI is 2.2% less expensive than Trenton-Princeton, NJ on BEA Regional Price Parities (overall RPP 100.9 vs 103.2). A $100,000 salary in Trenton-Princeton buys about the same as $97,771 in Ann Arbor; the largest component gap is services.
- Overall RPP 103.2 (Trenton-Princeton) vs 100.9 (Ann Arbor)
- $100k in Trenton-Princeton ≈ $97,771 purchasing power in Ann Arbor
- Services drives the gap (-14.1 RPP points)
RPP parity plate
Pair NJ:MI 103.2→100.9
TIER-NEAR · CROSS-STATE · SERVICES-LED · BOTH-ABOVE · PP-PAR
- TIER-NEAR Near tier
- CROSS-STATE NJ × MI
- SERVICES-LED Services-led gap
- 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.
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.
Ann Arbor, MI is 2.2% less expensive than Trenton-Princeton, NJ, a meaningful but not extreme shift. The move decision turns on which budget category creates the 2.3-point overall gap.
Services leads the difference, with Ann Arbor 14.1 points lower than Trenton-Princeton. 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 Trenton-Princeton to $97,771 in Ann Arbor, but it is not a personal spending weight.
How the Price Gap Changed
Trenton-Princeton and Ann Arbor share 17 published annual releases from 2008 through 2024. Their overall gap widened, moving from 0.9 to 2.3 RPP points. Trenton-Princeton remained the higher-index metro in the latest release.
Services changed the most within this pair: its gap moved 25.0 points between the first and latest shared releases (39.1 to 14.1 points). This describes a relative price-index history, not a forecast or a household budget.
| Release Year | Trenton-Princeton RPP | Ann Arbor RPP | Relative Gap |
|---|---|---|---|
| 2008 | 104.6 | 103.6 | 0.9 points Trenton-Princeton higher |
| 2012 | 108.4 | 100.9 | 7.5 points Trenton-Princeton higher |
| 2016 | 108.8 | 98.4 | 10.4 points Trenton-Princeton higher |
| 2020 | 104.2 | 98.6 | 5.6 points Trenton-Princeton higher |
| 2024 | 103.2 | 100.9 | 2.3 points Trenton-Princeton 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
- Trenton-Princeton
- 99.8
- Ann Arbor
- 93.7
Diff -6.1 RPP
Services
- Trenton-Princeton
- 112.3
- Ann Arbor
- 98.2
Diff -14.1 RPP
Rents
- Trenton-Princeton
- 135.1
- Ann Arbor
- 125.3
Diff -9.8 RPP
| Category | Trenton-Princeton | Ann Arbor | Difference |
|---|---|---|---|
| Overall | 103.2 | 100.9 | -2.3 |
| Goods | 99.8 | 93.7 | -6.1 |
| Services | 112.3 | 98.2 | -14.1 |
| Rents | 135.1 | 125.3 | -9.8 |
Visual Comparison
Overall
Trenton-Princeton 103.2
Ann Arbor 100.9
Goods
Trenton-Princeton 99.8
Ann Arbor 93.7
Services
Trenton-Princeton 112.3
Ann Arbor 98.2
Rents
Trenton-Princeton 135.1
Ann Arbor 125.3
Vertical line = national average (100)
Salary Equivalents
What a salary in Trenton-Princeton would need to be in Ann Arbor for the same purchasing power:
| In Trenton-Princeton | In Ann Arbor | Difference |
|---|---|---|
| $50,000 | $48,885 | $-1,115 |
| $75,000 | $73,328 | $-1,672 |
| $100,000 | $97,771 | $-2,229 |
| $150,000 | $146,656 | $-3,344 |
$ in Trenton-Princeton = in Ann Arbor
Same BEA Regional Price Parity ratio as the table above (103.2 → 100.9), computed live from your number, nothing is sent anywhere.
Trenton-Princeton
103.2
Cost Index
Ann Arbor
100.9
Cost Index
Frequently Asked Questions
Is Ann Arbor more expensive than Trenton-Princeton?
Ann Arbor is 2.2% less expensive than Trenton-Princeton. The overall cost index is 100.9 vs 103.2 (national average = 100).
What salary in Ann Arbor equals $100K in Trenton-Princeton?
A $100,000 salary in Trenton-Princeton has the same purchasing power as $97,771 in Ann Arbor. This is based on the BEA Regional Price Parity indexes.
How do rents compare between Trenton-Princeton and Ann Arbor?
Rents in Trenton-Princeton are indexed at 135.1 while Ann Arbor is at 125.3 (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.