Overall
- Ann Arbor
- 100.9
- Trenton-Princeton
- 103.2
Diff +2.3 RPP
Ann Arbor vs Trenton-Princeton
Cost of living comparison based on BEA Regional Price Parities. Trenton-Princeton is 2.3% more expensive than Ann Arbor.
2.3% more expensive
Trenton-Princeton, NJ is 2.3% more expensive than Ann Arbor, MI on BEA Regional Price Parities (overall RPP 103.2 vs 100.9). A $100,000 salary in Ann Arbor buys about the same as $102,280 in Trenton-Princeton; the largest component gap is services.
- Overall RPP 100.9 (Ann Arbor) vs 103.2 (Trenton-Princeton)
- $100k in Ann Arbor ≈ $102,280 purchasing power in Trenton-Princeton
- Services drives the gap (+14.1 RPP points)
RPP parity plate
Pair MI:NJ 100.9→103.2
TIER-NEAR · CROSS-STATE · SERVICES-LED · BOTH-ABOVE · PP-PAR
- TIER-NEAR Near tier
- CROSS-STATE MI × NJ
- 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.
Trenton-Princeton, NJ is 2.3% more expensive than Ann Arbor, MI, 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 Trenton-Princeton 14.1 points higher than Ann Arbor. 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 Ann Arbor to $102,280 in Trenton-Princeton, but it is not a personal spending weight.
How the Price Gap Changed
Ann Arbor and Trenton-Princeton 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 | Ann Arbor RPP | Trenton-Princeton RPP | Relative Gap |
|---|---|---|---|
| 2008 | 103.6 | 104.6 | 0.9 points Trenton-Princeton higher |
| 2012 | 100.9 | 108.4 | 7.5 points Trenton-Princeton higher |
| 2016 | 98.4 | 108.8 | 10.4 points Trenton-Princeton higher |
| 2020 | 98.6 | 104.2 | 5.6 points Trenton-Princeton higher |
| 2024 | 100.9 | 103.2 | 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
- Ann Arbor
- 93.7
- Trenton-Princeton
- 99.8
Diff +6.1 RPP
Services
- Ann Arbor
- 98.2
- Trenton-Princeton
- 112.3
Diff +14.1 RPP
Rents
- Ann Arbor
- 125.3
- Trenton-Princeton
- 135.1
Diff +9.8 RPP
| Category | Ann Arbor | Trenton-Princeton | Difference |
|---|---|---|---|
| Overall | 100.9 | 103.2 | +2.3 |
| Goods | 93.7 | 99.8 | +6.1 |
| Services | 98.2 | 112.3 | +14.1 |
| Rents | 125.3 | 135.1 | +9.8 |
Visual Comparison
Overall
Ann Arbor 100.9
Trenton-Princeton 103.2
Goods
Ann Arbor 93.7
Trenton-Princeton 99.8
Services
Ann Arbor 98.2
Trenton-Princeton 112.3
Rents
Ann Arbor 125.3
Trenton-Princeton 135.1
Vertical line = national average (100)
Salary Equivalents
What a salary in Ann Arbor would need to be in Trenton-Princeton for the same purchasing power:
| In Ann Arbor | In Trenton-Princeton | Difference |
|---|---|---|
| $50,000 | $51,140 | +$1,140 |
| $75,000 | $76,710 | +$1,710 |
| $100,000 | $102,280 | +$2,280 |
| $150,000 | $153,420 | +$3,420 |
$ in Ann Arbor = in Trenton-Princeton
Same BEA Regional Price Parity ratio as the table above (100.9 → 103.2), computed live from your number, nothing is sent anywhere.
Ann Arbor
100.9
Cost Index
Trenton-Princeton
103.2
Cost Index
Frequently Asked Questions
Is Trenton-Princeton more expensive than Ann Arbor?
Trenton-Princeton is 2.3% more expensive than Ann Arbor. The overall cost index is 103.2 vs 100.9 (national average = 100).
What salary in Trenton-Princeton equals $100K in Ann Arbor?
A $100,000 salary in Ann Arbor has the same purchasing power as $102,280 in Trenton-Princeton. This is based on the BEA Regional Price Parity indexes.
How do rents compare between Ann Arbor and Trenton-Princeton?
Rents in Ann Arbor are indexed at 125.3 while Trenton-Princeton is at 135.1 (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.