Overall
- Peoria
- 91.2
- Fond du Lac
- 91.6
Diff +0.4 RPP
Peoria vs Fond du Lac
Cost of living comparison based on BEA Regional Price Parities. Fond du Lac is 0.5% more expensive than Peoria.
0.5% more expensive
Fond du Lac, WI is 0.5% more expensive than Peoria, IL on BEA Regional Price Parities (overall RPP 91.6 vs 91.2). A $100,000 salary in Peoria buys about the same as $100,452 in Fond du Lac; the largest component gap is rents.
- Overall RPP 91.2 (Peoria) vs 91.6 (Fond du Lac)
- $100k in Peoria ≈ $100,452 purchasing power in Fond du Lac
- Rents drives the gap (+3.6 RPP points)
RPP parity plate
Pair IL:WI 91.2→91.6
PHOTO-FINISH · CROSS-STATE · RENT-LED · BOTH-BELOW · PP-PAR
- PHOTO-FINISH Photo finish
- CROSS-STATE IL × WI
- 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.
Peoria
91.2
Cost Index
Fond du Lac
91.6
Cost Index
What This Comparison Actually Tells You
Peoria, IL and Fond du Lac, WI 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 Fond du Lac 3.6 points higher than Peoria. 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 Peoria corresponds to $100,452 in Fond du Lac.
Category Breakdown
Goods
- Peoria
- 93.6
- Fond du Lac
- 93.8
Diff +0.1 RPP
Services
- Peoria
- 90.5
- Fond du Lac
- 91.1
Diff +0.6 RPP
Rents
- Peoria
- 63.8
- Fond du Lac
- 67.3
Diff +3.6 RPP
| Category | Peoria | Fond du Lac | Difference |
|---|---|---|---|
| Overall | 91.2 | 91.6 | +0.4 |
| Goods | 93.6 | 93.8 | +0.1 |
| Services | 90.5 | 91.1 | +0.6 |
| Rents | 63.8 | 67.3 | +3.6 |
Visual Comparison
Overall
Peoria 91.2
Fond du Lac 91.6
Goods
Peoria 93.6
Fond du Lac 93.8
Services
Peoria 90.5
Fond du Lac 91.1
Rents
Peoria 63.8
Fond du Lac 67.3
Vertical line = national average (100)
Salary Equivalents
What a salary in Peoria would need to be in Fond du Lac for the same purchasing power:
| In Peoria | In Fond du Lac | Difference |
|---|---|---|
| $50,000 | $50,226 | +$226 |
| $75,000 | $75,339 | +$339 |
| $100,000 | $100,452 | +$452 |
| $150,000 | $150,677 | +$677 |
$ in Peoria = in Fond du Lac
Same BEA Regional Price Parity ratio as the table above (91.2 → 91.6), computed live from your number, nothing is sent anywhere.
Frequently Asked Questions
Is Fond du Lac more expensive than Peoria?
Fond du Lac is 0.5% more expensive than Peoria. The overall cost index is 91.6 vs 91.2 (national average = 100).
What salary in Fond du Lac equals $100K in Peoria?
A $100,000 salary in Peoria has the same purchasing power as $100,452 in Fond du Lac. This is based on the BEA Regional Price Parity indexes.
How do rents compare between Peoria and Fond du Lac?
Rents in Peoria are indexed at 63.8 while Fond du Lac is at 67.3 (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.