Overall
- Durham-Chapel Hill
- 97.6
Diff +0.4 RPP
Cost of living comparison based on BEA Regional Price Parities. Hilton Head Island-Bluffton-Port Royal is 0.5% more expensive than Durham-Chapel Hill.
Hilton Head Island-Bluffton-Port Royal, SC is 0.5% more expensive than Durham-Chapel Hill, NC on BEA Regional Price Parities (overall RPP 98.0 vs 97.6). A $100,000 salary in Durham-Chapel Hill buys about the same as $100,456 in Hilton Head Island-Bluffton-Port Royal; the largest component gap is rents.
RPP parity plate
Pair NC:SC 97.6→98.0
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.
Durham-Chapel Hill, NC and Hilton Head Island-Bluffton-Port Royal, SC 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 creates the largest separation: Hilton Head Island-Bluffton-Port Royal is 2.3 points higher. But services 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 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 Durham-Chapel Hill corresponds to $100,456 in Hilton Head Island-Bluffton-Port Royal.
Diff +0.4 RPP
Diff -0.3 RPP
Diff -1.2 RPP
Diff +2.3 RPP
| Category | Durham-Chapel Hill | Hilton Head Island-Bluffton-Port Royal | Difference |
|---|---|---|---|
| Overall | 97.6 | 98.0 | +0.4 |
| Goods | 96.6 | 96.3 | -0.3 |
| Services | 89.3 | 88.1 | -1.2 |
| Rents | 98.9 | 101.2 | +2.3 |
Vertical line = national average (100)
What a salary in Durham-Chapel Hill would need to be in Hilton Head Island-Bluffton-Port Royal for the same purchasing power:
| In Durham-Chapel Hill | In Hilton Head Island-Bluffton-Port Royal | Difference |
|---|---|---|
| $50,000 | $50,228 | +$228 |
| $75,000 | $75,342 | +$342 |
| $100,000 | $100,456 | +$456 |
| $150,000 | $150,684 | +$684 |
Same BEA Regional Price Parity ratio as the table above (97.6 → 98.0), computed live from your number, nothing is sent anywhere.
Hilton Head Island-Bluffton-Port Royal is 0.5% more expensive than Durham-Chapel Hill. The overall cost index is 98.0 vs 97.6 (national average = 100).
A $100,000 salary in Durham-Chapel Hill has the same purchasing power as $100,456 in Hilton Head Island-Bluffton-Port Royal. This is based on the BEA Regional Price Parity indexes.
Rents in Durham-Chapel Hill are indexed at 98.9 while Hilton Head Island-Bluffton-Port Royal is at 101.2 (national average = 100). Hilton Head Island-Bluffton-Port Royal 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.