Overall
Diff -0.4 RPP
Cost of living comparison based on BEA Regional Price Parities. Jackson is 0.4% less expensive than Rockford.
Jackson, MI is 0.4% less expensive than Rockford, IL on BEA Regional Price Parities (overall RPP 91.8 vs 92.2). A $100,000 salary in Rockford buys about the same as $99,593 in Jackson; the largest component gap is services.
RPP parity plate
Pair IL:MI 92.2→91.8
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.
Rockford, IL and Jackson, MI are a photo finish on overall price level, only 0.4 RPP points apart. A salary conversion is therefore a fine adjustment, not evidence of a fundamentally different cost regime.
Services creates the largest separation: Jackson is 8.5 points higher. But services and goods 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 Rockford to $99,593 in Jackson, but it is not a personal spending weight.
Diff -0.4 RPP
Diff +0.1 RPP
Diff +8.5 RPP
Diff -3.0 RPP
| Category | Rockford | Jackson | Difference |
|---|---|---|---|
| Overall | 92.2 | 91.8 | -0.4 |
| Goods | 93.6 | 93.7 | +0.1 |
| Services | 89.4 | 97.8 | +8.5 |
| Rents | 70.1 | 67.1 | -3.0 |
Vertical line = national average (100)
What a salary in Rockford would need to be in Jackson for the same purchasing power:
| In Rockford | In Jackson | Difference |
|---|---|---|
| $50,000 | $49,797 | $-203 |
| $75,000 | $74,695 | $-305 |
| $100,000 | $99,593 | $-407 |
| $150,000 | $149,390 | $-610 |
Same BEA Regional Price Parity ratio as the table above (92.2 → 91.8), computed live from your number, nothing is sent anywhere.
Jackson is 0.4% less expensive than Rockford. The overall cost index is 91.8 vs 92.2 (national average = 100).
A $100,000 salary in Rockford has the same purchasing power as $99,593 in Jackson. This is based on the BEA Regional Price Parity indexes.
Rents in Rockford are indexed at 70.1 while Jackson is at 67.1 (national average = 100). Rockford 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.