Kankakee vs Chicago-Naperville-Elgin

Cost of living comparison based on BEA Regional Price Parities. Chicago-Naperville-Elgin is 7.5% more expensive than Kankakee.

7.5% more expensive

Chicago-Naperville-Elgin, IL-IN is 7.5% more expensive than Kankakee, IL on BEA Regional Price Parities (overall RPP 103.6 vs 96.4). A $100,000 salary in Kankakee buys about the same as $107,470 in Chicago-Naperville-Elgin; the largest component gap is rents.

  • Overall RPP 96.4 (Kankakee) vs 103.6 (Chicago-Naperville-Elgin)
  • $100k in Kankakee ≈ $107,470 purchasing power in Chicago-Naperville-Elgin
  • Rents drives the gap (+19.2 RPP points)

RPP parity plate

Pair IL:IL 96.4→103.6

TIER-NEAR · SAME-STATE · SPLIT-BUDGET · BENCH-CROSS · PP-SHIFT

  • TIER-NEAR Near tier
  • SAME-STATE Same state · IL
  • SPLIT-BUDGET Split budget
  • BENCH-CROSS Benchmark cross
  • PP-SHIFT 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.

Category Breakdown

Visual Comparison

Overall
Kankakee
96.4
Chicago-Naperville-Elgin
103.6
Goods
Kankakee
93.6
Chicago-Naperville-Elgin
107.3
Services
Kankakee
89.4
Chicago-Naperville-Elgin
83.6
Rents
Kankakee
92.9
Chicago-Naperville-Elgin
112.0

Vertical line = national average (100)

What This Comparison Actually Tells You

Rents creates the largest separation: Chicago-Naperville-Elgin is 19.2 points higher. But services move against the overall direction, so this is a split budget rather than a clean across-the-board winner.

Chicago-Naperville-Elgin, IL-IN is 7.5% more expensive than Kankakee, IL, a meaningful but not extreme shift. The move decision turns on which budget category creates the 7.2-point overall gap.

This route crosses the national benchmark: Chicago-Naperville-Elgin is above 100 while Kankakee 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 Kankakee corresponds to $107,470 in Chicago-Naperville-Elgin.

Kankakee
96.4
Cost Index
Chicago-Naperville-Elgin
103.6
Cost Index

Salary Equivalents

What a salary in Kankakee would need to be in Chicago-Naperville-Elgin for the same purchasing power:

In Kankakee In Chicago-Naperville-Elgin Difference
$50,000 $53,735 +$3,735
$75,000 $80,603 +$5,603
$100,000 $107,470 +$7,470
$150,000 $161,206 +$11,206
$ in Kankakee = in Chicago-Naperville-Elgin

Same BEA Regional Price Parity ratio as the table above (96.4 → 103.6), computed live from your number, nothing is sent anywhere.

How the Price Gap Changed

Kankakee and Chicago-Naperville-Elgin share 17 published annual releases from 2008 through 2024. Their overall gap widened, moving from 5.9 to 7.2 RPP points. Chicago-Naperville-Elgin remained the higher-index metro in the latest release.

Rents changed the most within this pair: its gap moved 20.7 points between the first and latest shared releases (39.9 to 19.2 points). This describes a relative price-index history, not a forecast or a household budget.

Release Year Kankakee RPP Chicago-Naperville-Elgin RPP Relative Gap
2008 99.5 105.4 5.9 points Chicago-Naperville-Elgin higher
2012 99.2 105.1 5.9 points Chicago-Naperville-Elgin higher
2016 97.6 103.8 6.2 points Chicago-Naperville-Elgin higher
2020 90.6 104.5 13.9 points Chicago-Naperville-Elgin higher
2024 96.4 103.6 7.2 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.

Frequently Asked Questions

Is Chicago-Naperville-Elgin more expensive than Kankakee?

Chicago-Naperville-Elgin is 7.5% more expensive than Kankakee. The overall cost index is 103.6 vs 96.4 (national average = 100).

What salary in Chicago-Naperville-Elgin equals $100K in Kankakee?

A $100,000 salary in Kankakee has the same purchasing power as $107,470 in Chicago-Naperville-Elgin. This is based on the BEA Regional Price Parity indexes.

How do rents compare between Kankakee and Chicago-Naperville-Elgin?

Rents in Kankakee are indexed at 92.9 while Chicago-Naperville-Elgin is at 112.0 (national average = 100). Chicago-Naperville-Elgin has higher rents.

Data sourced from official public datasets, Regional Price Parities (2024), index where national average = 100. Retrieved and formatted by PlainCost. See our methodology for details.

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.