Overall
- Knoxville
- 92.6
- Naples-Marco Island
- 103.2
Diff +10.6 RPP
Cost of living comparison based on BEA Regional Price Parities. Naples-Marco Island is 11.5% more expensive than Knoxville.
Naples-Marco Island, FL is 11.5% more expensive than Knoxville, TN on BEA Regional Price Parities (overall RPP 103.2 vs 92.6). A $100,000 salary in Knoxville buys about the same as $111,484 in Naples-Marco Island; the largest component gap is rents.
RPP parity plate
Pair TN:FL 92.6→103.2
TIER-GAP · CROSS-STATE · SPLIT-BUDGET · BENCH-CROSS · PP-SHIFT
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.
Diff +10.6 RPP
Diff -0.0 RPP
Diff +15.9 RPP
Diff +46.7 RPP
| Category | Knoxville | Naples-Marco Island | Difference |
|---|---|---|---|
| Overall | 92.6 | 103.2 | +10.6 |
| Goods | 96.2 | 96.2 | -0.0 |
| Services | 71.9 | 87.8 | +15.9 |
| Rents | 82.8 | 129.4 | +46.7 |
Vertical line = national average (100)
Rents creates the largest separation: Naples-Marco Island is 46.7 points higher. But goods move against the overall direction, so this is a split budget rather than a clean across-the-board winner.
Knoxville, TN and Naples-Marco Island, FL sit in clearly different price tiers, separated by 10.6 RPP points. At this distance, treating the same nominal salary as equivalent would materially change purchasing power.
This route crosses the national benchmark: Naples-Marco Island is above 100 while Knoxville is below it. That makes the move a change of price regime, not merely a rank swap.
Comparable population context is incomplete for this pair, so no market-scale explanation is inferred from the price indexes.
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 Knoxville corresponds to $111,484 in Naples-Marco Island.
What a salary in Knoxville would need to be in Naples-Marco Island for the same purchasing power:
| In Knoxville | In Naples-Marco Island | Difference |
|---|---|---|
| $50,000 | $55,742 | +$5,742 |
| $75,000 | $83,613 | +$8,613 |
| $100,000 | $111,484 | +$11,484 |
| $150,000 | $167,227 | +$17,227 |
Same BEA Regional Price Parity ratio as the table above (92.6 → 103.2), computed live from your number, nothing is sent anywhere.
Naples-Marco Island is 11.5% more expensive than Knoxville. The overall cost index is 103.2 vs 92.6 (national average = 100).
A $100,000 salary in Knoxville has the same purchasing power as $111,484 in Naples-Marco Island. This is based on the BEA Regional Price Parity indexes.
Rents in Knoxville are indexed at 82.8 while Naples-Marco Island is at 129.4 (national average = 100). Naples-Marco Island 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.