Overall
- Rapid City
- 89.2
Diff +0.2 RPP
Cost of living comparison based on BEA Regional Price Parities. Little Rock-North Little Rock-Conway is 0.2% more expensive than Rapid City.
Little Rock-North Little Rock-Conway, AR is 0.2% more expensive than Rapid City, SD on BEA Regional Price Parities (overall RPP 89.4 vs 89.2). A $100,000 salary in Rapid City buys about the same as $100,229 in Little Rock-North Little Rock-Conway; the largest component gap is services.
RPP parity plate
Pair SD:AR 89.2→89.4
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.
Rapid City, SD and Little Rock-North Little Rock-Conway, AR are a photo finish on overall price level, only 0.2 RPP points apart. A salary conversion is therefore a fine adjustment, not evidence of a fundamentally different cost regime.
Services creates the largest separation: Little Rock-North Little Rock-Conway is 4.5 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 Rapid City to $100,229 in Little Rock-North Little Rock-Conway, but it is not a personal spending weight.
Diff +0.2 RPP
Diff -1.9 RPP
Diff -4.5 RPP
Diff -4.3 RPP
| Category | Rapid City | Little Rock-North Little Rock-Conway | Difference |
|---|---|---|---|
| Overall | 89.2 | 89.4 | +0.2 |
| Goods | 95.5 | 93.6 | -1.9 |
| Services | 79.1 | 74.6 | -4.5 |
| Rents | 72.6 | 68.3 | -4.3 |
Vertical line = national average (100)
Rapid City and Little Rock-North Little Rock-Conway share 17 published annual releases from 2008 through 2024. Their overall gap narrowed, moving from 2.6 to 0.2 RPP points. Little Rock-North Little Rock-Conway remained the higher-index metro in the latest release.
Rents changed the most within this pair: its gap moved 12.5 points between the first and latest shared releases (8.2 to 4.3 points). This describes a relative price-index history, not a forecast or a household budget.
| Release Year | Rapid City RPP | Little Rock-North Little Rock-Conway RPP | Relative Gap |
|---|---|---|---|
| 2008 | 90.3 | 92.8 | 2.6 points Little Rock-North Little Rock-Conway higher |
| 2012 | 94.5 | 93.7 | 0.8 points Rapid City higher |
| 2016 | 89.8 | 94.3 | 4.5 points Little Rock-North Little Rock-Conway higher |
| 2020 | 94.2 | 90.6 | 3.6 points Rapid City higher |
| 2024 | 89.2 | 89.4 | 0.2 points Little Rock-North Little Rock-Conway higher |
Annual BEA Regional Price Parity releases; a higher index means a higher price level relative to the national average of 100. Selected years shown from the full shared series.
What a salary in Rapid City would need to be in Little Rock-North Little Rock-Conway for the same purchasing power:
| In Rapid City | In Little Rock-North Little Rock-Conway | Difference |
|---|---|---|
| $50,000 | $50,114 | +$114 |
| $75,000 | $75,172 | +$172 |
| $100,000 | $100,229 | +$229 |
| $150,000 | $150,343 | +$343 |
Same BEA Regional Price Parity ratio as the table above (89.2 → 89.4), computed live from your number, nothing is sent anywhere.
Little Rock-North Little Rock-Conway is 0.2% more expensive than Rapid City. The overall cost index is 89.4 vs 89.2 (national average = 100).
A $100,000 salary in Rapid City has the same purchasing power as $100,229 in Little Rock-North Little Rock-Conway. This is based on the BEA Regional Price Parity indexes.
Rents in Rapid City are indexed at 72.6 while Little Rock-North Little Rock-Conway is at 68.3 (national average = 100). Rapid City 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.