Overall
Diff +0.3 RPP
Cost of living comparison based on BEA Regional Price Parities. Louisville/Jefferson County is 0.4% more expensive than Slidell-Mandeville-Covington.
Louisville/Jefferson County, KY-IN is 0.4% more expensive than Slidell-Mandeville-Covington, LA on BEA Regional Price Parities (overall RPP 93.1 vs 92.7). A $100,000 salary in Slidell-Mandeville-Covington buys about the same as $100,375 in Louisville/Jefferson County; the largest component gap is rents.
RPP parity plate
Pair LA:KY 92.7→93.1
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.
Slidell-Mandeville-Covington, LA and Louisville/Jefferson County, KY-IN 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.
Rents creates the largest separation: Louisville/Jefferson County is 6.9 points lower. But rents 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 Slidell-Mandeville-Covington corresponds to $100,375 in Louisville/Jefferson County.
Diff +0.3 RPP
Diff +2.5 RPP
Diff +3.3 RPP
Diff -6.9 RPP
| Category | Slidell-Mandeville-Covington | Louisville/Jefferson County | Difference |
|---|---|---|---|
| Overall | 92.7 | 93.1 | +0.3 |
| Goods | 93.7 | 96.2 | +2.5 |
| Services | 71.7 | 75.0 | +3.3 |
| Rents | 85.4 | 78.6 | -6.9 |
Vertical line = national average (100)
What a salary in Slidell-Mandeville-Covington would need to be in Louisville/Jefferson County for the same purchasing power:
| In Slidell-Mandeville-Covington | In Louisville/Jefferson County | Difference |
|---|---|---|
| $50,000 | $50,188 | +$188 |
| $75,000 | $75,281 | +$281 |
| $100,000 | $100,375 | +$375 |
| $150,000 | $150,563 | +$563 |
Same BEA Regional Price Parity ratio as the table above (92.7 → 93.1), computed live from your number, nothing is sent anywhere.
Louisville/Jefferson County is 0.4% more expensive than Slidell-Mandeville-Covington. The overall cost index is 93.1 vs 92.7 (national average = 100).
A $100,000 salary in Slidell-Mandeville-Covington has the same purchasing power as $100,375 in Louisville/Jefferson County. This is based on the BEA Regional Price Parity indexes.
Rents in Slidell-Mandeville-Covington are indexed at 85.4 while Louisville/Jefferson County is at 78.6 (national average = 100). Slidell-Mandeville-Covington 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.