Overall
- Green Bay
- 93.1
- Springfield
- 92.7
Diff -0.3 RPP
Green Bay vs Springfield
Cost of living comparison based on BEA Regional Price Parities. Springfield is 0.4% less expensive than Green Bay.
0.4% less expensive
Springfield, IL is 0.4% less expensive than Green Bay, WI on BEA Regional Price Parities (overall RPP 92.7 vs 93.1). A $100,000 salary in Green Bay buys about the same as $99,634 in Springfield; the largest component gap is rents.
- Overall RPP 93.1 (Green Bay) vs 92.7 (Springfield)
- $100k in Green Bay ≈ $99,634 purchasing power in Springfield
- Rents drives the gap (-3.1 RPP points)
RPP parity plate
Pair WI:IL 93.1→92.7
PHOTO-FINISH · CROSS-STATE · SPLIT-BUDGET · BOTH-BELOW · PP-PAR
- PHOTO-FINISH Photo finish
- CROSS-STATE WI × IL
- SPLIT-BUDGET Split budget
- BOTH-BELOW Both below 100
- PP-PAR PP near-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.
Green Bay
93.1
Cost Index
Springfield
92.7
Cost Index
What This Comparison Actually Tells You
Green Bay, WI and Springfield, IL are a photo finish on overall price level, only 0.3 RPP points apart. A salary conversion is therefore a fine adjustment, not evidence of a fundamentally different cost regime.
Rents creates the largest separation: Springfield is 3.1 points lower. But services 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 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 Green Bay corresponds to $99,634 in Springfield.
Category Breakdown
Goods
- Green Bay
- 93.8
- Springfield
- 93.6
Diff -0.1 RPP
Services
- Green Bay
- 90.0
- Springfield
- 90.4
Diff +0.4 RPP
Rents
- Green Bay
- 74.7
- Springfield
- 71.6
Diff -3.1 RPP
| Category | Green Bay | Springfield | Difference |
|---|---|---|---|
| Overall | 93.1 | 92.7 | -0.3 |
| Goods | 93.8 | 93.6 | -0.1 |
| Services | 90.0 | 90.4 | +0.4 |
| Rents | 74.7 | 71.6 | -3.1 |
Visual Comparison
Overall
Green Bay 93.1
Springfield 92.7
Goods
Green Bay 93.8
Springfield 93.6
Services
Green Bay 90.0
Springfield 90.4
Rents
Green Bay 74.7
Springfield 71.6
Vertical line = national average (100)
Salary Equivalents
What a salary in Green Bay would need to be in Springfield for the same purchasing power:
| In Green Bay | In Springfield | Difference |
|---|---|---|
| $50,000 | $49,817 | $-183 |
| $75,000 | $74,725 | $-275 |
| $100,000 | $99,634 | $-366 |
| $150,000 | $149,451 | $-549 |
$ in Green Bay = in Springfield
Same BEA Regional Price Parity ratio as the table above (93.1 → 92.7), computed live from your number, nothing is sent anywhere.
Frequently Asked Questions
Is Springfield more expensive than Green Bay?
Springfield is 0.4% less expensive than Green Bay. The overall cost index is 92.7 vs 93.1 (national average = 100).
What salary in Springfield equals $100K in Green Bay?
A $100,000 salary in Green Bay has the same purchasing power as $99,634 in Springfield. This is based on the BEA Regional Price Parity indexes.
How do rents compare between Green Bay and Springfield?
Rents in Green Bay are indexed at 74.7 while Springfield is at 71.6 (national average = 100). Green Bay has higher rents.
Data sources
- BEA Regional Price Parities (RPP), the cost-of-living indices shown on this page
- U.S. Census Bureau, American Community Survey (ACS), gross-rent observations behind the rents component
- BLS Consumer Price Index (CPI), goods and services price relatives
- BLS Occupational Employment and Wage Statistics (OEWS), labor-driven services component
- HUD Fair Market Rents (FMR), 40th-percentile rent cross-reference
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.