Overall
- Chicago-Naperville-Elgin
- 103.6
Diff +11.9 RPP
Cost of living comparison based on BEA Regional Price Parities. Chicago-Naperville-Elgin is 13% more expensive than Des Moines-West Des Moines.
Chicago-Naperville-Elgin, IL-IN is 13% more expensive than Des Moines-West Des Moines, IA on BEA Regional Price Parities (overall RPP 103.6 vs 91.7). A $100,000 salary in Des Moines-West Des Moines buys about the same as $112,970 in Chicago-Naperville-Elgin; the largest component gap is rents.
RPP parity plate
Pair IA:IL 91.7→103.6
TIER-GAP · 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 +11.9 RPP
Diff +13.5 RPP
Diff -1.0 RPP
Diff +27.3 RPP
| Category | Des Moines-West Des Moines | Chicago-Naperville-Elgin | Difference |
|---|---|---|---|
| Overall | 91.7 | 103.6 | +11.9 |
| Goods | 93.7 | 107.3 | +13.5 |
| Services | 84.6 | 83.6 | -1.0 |
| Rents | 84.7 | 112.0 | +27.3 |
Vertical line = national average (100)
Rents creates the largest separation: Chicago-Naperville-Elgin is 27.3 points higher. But services move against the overall direction, so this is a split budget rather than a clean across-the-board winner.
Des Moines-West Des Moines, IA and Chicago-Naperville-Elgin, IL-IN sit in clearly different price tiers, separated by 11.9 RPP points. At this distance, treating the same nominal salary as equivalent would materially change purchasing power.
This route crosses the national benchmark: Chicago-Naperville-Elgin is above 100 while Des Moines-West Des Moines 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 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 Des Moines-West Des Moines corresponds to $112,970 in Chicago-Naperville-Elgin.
What a salary in Des Moines-West Des Moines would need to be in Chicago-Naperville-Elgin for the same purchasing power:
| In Des Moines-West Des Moines | In Chicago-Naperville-Elgin | Difference |
|---|---|---|
| $50,000 | $56,485 | +$6,485 |
| $75,000 | $84,728 | +$9,728 |
| $100,000 | $112,970 | +$12,970 |
| $150,000 | $169,456 | +$19,456 |
Same BEA Regional Price Parity ratio as the table above (91.7 → 103.6), computed live from your number, nothing is sent anywhere.
Des Moines-West Des Moines and Chicago-Naperville-Elgin share 17 published annual releases from 2008 through 2024. Their overall gap widened, moving from 10.3 to 11.9 RPP points. Chicago-Naperville-Elgin remained the higher-index metro in the latest release.
Rents changed the most within this pair: its gap moved 14.6 points between the first and latest shared releases (41.8 to 27.3 points). This describes a relative price-index history, not a forecast or a household budget.
| Release Year | Des Moines-West Des Moines RPP | Chicago-Naperville-Elgin RPP | Relative Gap |
|---|---|---|---|
| 2008 | 95.1 | 105.4 | 10.3 points Chicago-Naperville-Elgin higher |
| 2012 | 95.5 | 105.1 | 9.6 points Chicago-Naperville-Elgin higher |
| 2016 | 94.6 | 103.8 | 9.2 points Chicago-Naperville-Elgin higher |
| 2020 | 93.8 | 104.5 | 10.7 points Chicago-Naperville-Elgin higher |
| 2024 | 91.7 | 103.6 | 11.9 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.
Chicago-Naperville-Elgin is 13% more expensive than Des Moines-West Des Moines. The overall cost index is 103.6 vs 91.7 (national average = 100).
A $100,000 salary in Des Moines-West Des Moines has the same purchasing power as $112,970 in Chicago-Naperville-Elgin. This is based on the BEA Regional Price Parity indexes.
Rents in Des Moines-West Des Moines are indexed at 84.7 while Chicago-Naperville-Elgin is at 112.0 (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.