Overall
- Chicago-Naperville-Elgin
- 103.6
- Rochester
- 97.0
Diff -6.6 RPP
Cost of living comparison based on BEA Regional Price Parities. Rochester is 6.3% less expensive than Chicago-Naperville-Elgin.
Rochester, NY is 6.3% less expensive than Chicago-Naperville-Elgin, IL-IN on BEA Regional Price Parities (overall RPP 97.0 vs 103.6). A $100,000 salary in Chicago-Naperville-Elgin buys about the same as $93,668 in Rochester; the largest component gap is services.
RPP parity plate
Pair IL:NY 103.6→97.0
TIER-NEAR · CROSS-STATE · SPLIT-BUDGET · BENCH-CROSS · 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.
Diff -6.6 RPP
Diff -7.6 RPP
Diff +49.6 RPP
Diff -24.5 RPP
| Category | Chicago-Naperville-Elgin | Rochester | Difference |
|---|---|---|---|
| Overall | 103.6 | 97.0 | -6.6 |
| Goods | 107.3 | 99.7 | -7.6 |
| Services | 83.6 | 133.2 | +49.6 |
| Rents | 112.0 | 87.5 | -24.5 |
Vertical line = national average (100)
Services creates the largest separation: Rochester is 49.6 points higher. But services move against the overall direction, so this is a split budget rather than a clean across-the-board winner.
Rochester, NY is 6.3% less expensive than Chicago-Naperville-Elgin, IL-IN, a meaningful but not extreme shift. The move decision turns on which budget category creates the 6.6-point overall gap.
This route crosses the national benchmark: Chicago-Naperville-Elgin is above 100 while Rochester is below it. That makes the move a change of price regime, not merely a rank swap.
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 Chicago-Naperville-Elgin to $93,668 in Rochester, but it is not a personal spending weight.
What a salary in Chicago-Naperville-Elgin would need to be in Rochester for the same purchasing power:
| In Chicago-Naperville-Elgin | In Rochester | Difference |
|---|---|---|
| $50,000 | $46,834 | $-3,166 |
| $75,000 | $70,251 | $-4,749 |
| $100,000 | $93,668 | $-6,332 |
| $150,000 | $140,501 | $-9,499 |
Same BEA Regional Price Parity ratio as the table above (103.6 → 97.0), computed live from your number, nothing is sent anywhere.
Chicago-Naperville-Elgin and Rochester share 17 published annual releases from 2008 through 2024. Their overall gap widened, moving from 4.6 to 6.6 RPP points. Chicago-Naperville-Elgin remained the higher-index metro in the latest release.
Services changed the most within this pair: its gap moved 4.7 points between the first and latest shared releases (44.9 to 49.6 points). This describes a relative price-index history, not a forecast or a household budget.
| Release Year | Chicago-Naperville-Elgin RPP | Rochester RPP | Relative Gap |
|---|---|---|---|
| 2008 | 105.4 | 100.8 | 4.6 points Chicago-Naperville-Elgin higher |
| 2012 | 105.1 | 98.5 | 6.6 points Chicago-Naperville-Elgin higher |
| 2016 | 103.8 | 99.8 | 4.0 points Chicago-Naperville-Elgin higher |
| 2020 | 104.5 | 97.3 | 7.2 points Chicago-Naperville-Elgin higher |
| 2024 | 103.6 | 97.0 | 6.6 points Chicago-Naperville-Elgin 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.
Rochester is 6.3% less expensive than Chicago-Naperville-Elgin. The overall cost index is 97.0 vs 103.6 (national average = 100).
A $100,000 salary in Chicago-Naperville-Elgin has the same purchasing power as $93,668 in Rochester. This is based on the BEA Regional Price Parity indexes.
Rents in Chicago-Naperville-Elgin are indexed at 112.0 while Rochester is at 87.5 (national average = 100). Chicago-Naperville-Elgin has higher rents.
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.