Overall
- Fond du Lac
- 91.6
- Peoria
- 91.2
Diff -0.4 RPP
Fond du Lac vs Peoria
Cost of living comparison based on BEA Regional Price Parities. Peoria is 0.4% less expensive than Fond du Lac.
0.4% less expensive
Peoria, IL is 0.4% less expensive than Fond du Lac, WI on BEA Regional Price Parities (overall RPP 91.2 vs 91.6). A $100,000 salary in Fond du Lac buys about the same as $99,550 in Peoria; the largest component gap is rents.
- Overall RPP 91.6 (Fond du Lac) vs 91.2 (Peoria)
- $100k in Fond du Lac ≈ $99,550 purchasing power in Peoria
- Rents drives the gap (-3.6 RPP points)
RPP parity plate
Pair WI:IL 91.6→91.2
PHOTO-FINISH · CROSS-STATE · RENT-LED · BOTH-BELOW · PP-PAR
- PHOTO-FINISH Photo finish
- CROSS-STATE WI × IL
- RENT-LED Rent-led gap
- 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.
Fond du Lac
91.6
Cost Index
Peoria
91.2
Cost Index
What This Comparison Actually Tells You
Fond du Lac, WI and Peoria, IL 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.
Rents leads the difference, with Peoria 3.6 points lower than Fond du Lac. Goods, services, and rents all point in the same broad direction, making the headline comparison more transferable across household types.
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 Fond du Lac corresponds to $99,550 in Peoria.
Category Breakdown
Goods
- Fond du Lac
- 93.8
- Peoria
- 93.6
Diff -0.1 RPP
Services
- Fond du Lac
- 91.1
- Peoria
- 90.5
Diff -0.6 RPP
Rents
- Fond du Lac
- 67.3
- Peoria
- 63.8
Diff -3.6 RPP
| Category | Fond du Lac | Peoria | Difference |
|---|---|---|---|
| Overall | 91.6 | 91.2 | -0.4 |
| Goods | 93.8 | 93.6 | -0.1 |
| Services | 91.1 | 90.5 | -0.6 |
| Rents | 67.3 | 63.8 | -3.6 |
Visual Comparison
Overall
Fond du Lac 91.6
Peoria 91.2
Goods
Fond du Lac 93.8
Peoria 93.6
Services
Fond du Lac 91.1
Peoria 90.5
Rents
Fond du Lac 67.3
Peoria 63.8
Vertical line = national average (100)
Salary Equivalents
What a salary in Fond du Lac would need to be in Peoria for the same purchasing power:
| In Fond du Lac | In Peoria | Difference |
|---|---|---|
| $50,000 | $49,775 | $-225 |
| $75,000 | $74,663 | $-337 |
| $100,000 | $99,550 | $-450 |
| $150,000 | $149,326 | $-674 |
$ in Fond du Lac = in Peoria
Same BEA Regional Price Parity ratio as the table above (91.6 → 91.2), computed live from your number, nothing is sent anywhere.
Frequently Asked Questions
Is Peoria more expensive than Fond du Lac?
Peoria is 0.4% less expensive than Fond du Lac. The overall cost index is 91.2 vs 91.6 (national average = 100).
What salary in Peoria equals $100K in Fond du Lac?
A $100,000 salary in Fond du Lac has the same purchasing power as $99,550 in Peoria. This is based on the BEA Regional Price Parity indexes.
How do rents compare between Fond du Lac and Peoria?
Rents in Fond du Lac are indexed at 67.3 while Peoria is at 63.8 (national average = 100). Fond du Lac 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.