Overall
- Bay City
- 91.9
- Fond du Lac
- 91.6
Diff -0.3 RPP
Bay City vs Fond du Lac
Cost of living comparison based on BEA Regional Price Parities. Fond du Lac is 0.3% less expensive than Bay City.
0.3% less expensive
Fond du Lac, WI is 0.3% less expensive than Bay City, MI on BEA Regional Price Parities (overall RPP 91.6 vs 91.9). A $100,000 salary in Bay City buys about the same as $99,698 in Fond du Lac; the largest component gap is services.
- Overall RPP 91.9 (Bay City) vs 91.6 (Fond du Lac)
- $100k in Bay City ≈ $99,698 purchasing power in Fond du Lac
- Services drives the gap (-4.1 RPP points)
RPP parity plate
Pair MI:WI 91.9→91.6
PHOTO-FINISH · CROSS-STATE · SPLIT-BUDGET · BOTH-BELOW · PP-PAR
- PHOTO-FINISH Photo finish
- CROSS-STATE MI × WI
- 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.
Bay City
91.9
Cost Index
Fond du Lac
91.6
Cost Index
What This Comparison Actually Tells You
Bay City, MI and Fond du Lac, WI 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.
Services creates the largest separation: Fond du Lac is 4.1 points lower. But rents 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 Bay City to $99,698 in Fond du Lac, but it is not a personal spending weight.
Category Breakdown
Goods
- Bay City
- 93.7
- Fond du Lac
- 93.8
Diff +0.1 RPP
Services
- Bay City
- 95.2
- Fond du Lac
- 91.1
Diff -4.1 RPP
Rents
- Bay City
- 66.7
- Fond du Lac
- 67.3
Diff +0.6 RPP
| Category | Bay City | Fond du Lac | Difference |
|---|---|---|---|
| Overall | 91.9 | 91.6 | -0.3 |
| Goods | 93.7 | 93.8 | +0.1 |
| Services | 95.2 | 91.1 | -4.1 |
| Rents | 66.7 | 67.3 | +0.6 |
Visual Comparison
Overall
Bay City 91.9
Fond du Lac 91.6
Goods
Bay City 93.7
Fond du Lac 93.8
Services
Bay City 95.2
Fond du Lac 91.1
Rents
Bay City 66.7
Fond du Lac 67.3
Vertical line = national average (100)
Salary Equivalents
What a salary in Bay City would need to be in Fond du Lac for the same purchasing power:
| In Bay City | In Fond du Lac | Difference |
|---|---|---|
| $50,000 | $49,849 | $-151 |
| $75,000 | $74,773 | $-227 |
| $100,000 | $99,698 | $-302 |
| $150,000 | $149,546 | $-454 |
$ in Bay City = in Fond du Lac
Same BEA Regional Price Parity ratio as the table above (91.9 → 91.6), computed live from your number, nothing is sent anywhere.
Frequently Asked Questions
Is Fond du Lac more expensive than Bay City?
Fond du Lac is 0.3% less expensive than Bay City. The overall cost index is 91.6 vs 91.9 (national average = 100).
What salary in Fond du Lac equals $100K in Bay City?
A $100,000 salary in Bay City has the same purchasing power as $99,698 in Fond du Lac. This is based on the BEA Regional Price Parity indexes.
How do rents compare between Bay City and Fond du Lac?
Rents in Bay City are indexed at 66.7 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.