Overall
Diff +0.1 RPP
Cost of living comparison based on BEA Regional Price Parities. Ames is 0.1% more expensive than Duluth.
Ames, IA is 0.1% more expensive than Duluth, MN-WI on BEA Regional Price Parities (overall RPP 88.8 vs 88.8). A $100,000 salary in Duluth buys about the same as $100,070 in Ames; the largest component gap is services.
RPP parity plate
Pair MN:IA 88.8→88.8
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.
Duluth, MN-WI and Ames, IA are a photo finish on overall price level, only 0.1 RPP points apart. A salary conversion is therefore a fine adjustment, not evidence of a fundamentally different cost regime.
Services creates the largest separation: Ames is 4.2 points lower. But services and 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 Duluth to $100,070 in Ames, but it is not a personal spending weight.
Diff +0.1 RPP
Diff -1.6 RPP
Diff -4.2 RPP
Diff -2.0 RPP
| Category | Duluth | Ames | Difference |
|---|---|---|---|
| Overall | 88.8 | 88.8 | +0.1 |
| Goods | 95.3 | 93.7 | -1.6 |
| Services | 87.3 | 83.0 | -4.2 |
| Rents | 71.1 | 69.2 | -2.0 |
Vertical line = national average (100)
What a salary in Duluth would need to be in Ames for the same purchasing power:
| In Duluth | In Ames | Difference |
|---|---|---|
| $50,000 | $50,035 | +$35 |
| $75,000 | $75,052 | +$52 |
| $100,000 | $100,070 | +$70 |
| $150,000 | $150,105 | +$105 |
Same BEA Regional Price Parity ratio as the table above (88.8 → 88.8), computed live from your number, nothing is sent anywhere.
Ames is 0.1% more expensive than Duluth. The overall cost index is 88.8 vs 88.8 (national average = 100).
A $100,000 salary in Duluth has the same purchasing power as $100,070 in Ames. This is based on the BEA Regional Price Parity indexes.
Rents in Duluth are indexed at 71.1 while Ames is at 69.2 (national average = 100). Duluth 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.