Overall
Diff +0.1 RPP
Cost of living comparison based on BEA Regional Price Parities. Cheyenne is 0.1% more expensive than Kankakee.
Cheyenne, WY is 0.1% more expensive than Kankakee, IL on BEA Regional Price Parities (overall RPP 96.5 vs 96.4). A $100,000 salary in Kankakee buys about the same as $100,101 in Cheyenne; the largest component gap is services.
RPP parity plate
Pair IL:WY 96.4→96.5
PHOTO-FINISH · CROSS-STATE · SPLIT-BUDGET · BOTH-BELOW · PP-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.
Kankakee, IL and Cheyenne, WY are a photo finish on overall price level, only 0.1 RPP points apart. A salary conversion is therefore a fine adjustment, not evidence of a fundamentally different cost regime.
Services creates the largest separation: Cheyenne is 11.5 points lower. But services and rents 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 remain below the U.S. benchmark of 100. This comparison chooses between two below-average price levels; “more expensive” here does not mean nationally expensive.
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 Kankakee to $100,101 in Cheyenne, but it is not a personal spending weight.
Diff +0.1 RPP
Diff +1.7 RPP
Diff -11.5 RPP
Diff -3.0 RPP
| Category | Kankakee | Cheyenne | Difference |
|---|---|---|---|
| Overall | 96.4 | 96.5 | +0.1 |
| Goods | 93.6 | 95.4 | +1.7 |
| Services | 89.4 | 78.0 | -11.5 |
| Rents | 92.9 | 89.8 | -3.0 |
Vertical line = national average (100)
What a salary in Kankakee would need to be in Cheyenne for the same purchasing power:
| In Kankakee | In Cheyenne | Difference |
|---|---|---|
| $50,000 | $50,050 | +$50 |
| $75,000 | $75,075 | +$75 |
| $100,000 | $100,101 | +$101 |
| $150,000 | $150,151 | +$151 |
Same BEA Regional Price Parity ratio as the table above (96.4 → 96.5), computed live from your number, nothing is sent anywhere.
Cheyenne is 0.1% more expensive than Kankakee. The overall cost index is 96.5 vs 96.4 (national average = 100).
A $100,000 salary in Kankakee has the same purchasing power as $100,101 in Cheyenne. This is based on the BEA Regional Price Parity indexes.
Rents in Kankakee are indexed at 92.9 while Cheyenne is at 89.8 (national average = 100). Kankakee 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.