Overall
- Olympia-Lacey-Tumwater
- 103.7
- Sumter
- 88.0
Diff -15.7 RPP
Olympia-Lacey-Tumwater vs Sumter
Cost of living comparison based on BEA Regional Price Parities. Sumter is 15.1% less expensive than Olympia-Lacey-Tumwater.
15.1% less expensive
Sumter, SC is 15.1% less expensive than Olympia-Lacey-Tumwater, WA on BEA Regional Price Parities (overall RPP 88.0 vs 103.7). A $100,000 salary in Olympia-Lacey-Tumwater buys about the same as $84,904 in Sumter; the largest component gap is rents.
- Overall RPP 103.7 (Olympia-Lacey-Tumwater) vs 88.0 (Sumter)
- $100k in Olympia-Lacey-Tumwater ≈ $84,904 purchasing power in Sumter
- Rents drives the gap (-55.8 RPP points)
RPP parity plate
Pair WA:SC 103.7→88.0
TIER-GAP · CROSS-STATE · RENT-LED · BENCH-CROSS · PP-STEEP
- TIER-GAP Clear tier gap
- CROSS-STATE WA × SC
- RENT-LED Rent-led gap
- BENCH-CROSS Benchmark cross
- PP-STEEP Steep PP convert
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.
Salary Equivalents
What a salary in Olympia-Lacey-Tumwater would need to be in Sumter for the same purchasing power:
| In Olympia-Lacey-Tumwater | In Sumter | Difference |
|---|---|---|
| $50,000 | $42,452 | $-7,548 |
| $75,000 | $63,678 | $-11,322 |
| $100,000 | $84,904 | $-15,096 |
| $150,000 | $127,356 | $-22,644 |
$ in Olympia-Lacey-Tumwater = in Sumter
Same BEA Regional Price Parity ratio as the table above (103.7 → 88.0), computed live from your number, nothing is sent anywhere.
What This Comparison Actually Tells You
Olympia-Lacey-Tumwater, WA and Sumter, SC sit in clearly different price tiers, separated by 15.7 RPP points. At this distance, treating the same nominal salary as equivalent would materially change purchasing power.
This route crosses the national benchmark: Olympia-Lacey-Tumwater is above 100 while Sumter is below it. That makes the move a change of price regime, not merely a rank swap.
Rents leads the difference, with Sumter 55.8 points lower than Olympia-Lacey-Tumwater. Goods, services, and rents all point in the same broad direction, making the headline comparison more transferable across household types.
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 Olympia-Lacey-Tumwater corresponds to $84,904 in Sumter.
Category Breakdown
Goods
- Olympia-Lacey-Tumwater
- 105.0
- Sumter
- 96.3
Diff -8.7 RPP
Services
- Sumter
- 87.3
Diff -4.4 RPP
Rents
- Olympia-Lacey-Tumwater
- 116.7
- Sumter
- 60.8
Diff -55.8 RPP
| Category | Olympia-Lacey-Tumwater | Sumter | Difference |
|---|---|---|---|
| Overall | 103.7 | 88.0 | -15.7 |
| Goods | 105.0 | 96.3 | -8.7 |
| Services | 91.7 | 87.3 | -4.4 |
| Rents | 116.7 | 60.8 | -55.8 |
Visual Comparison
Overall
Olympia-Lacey-Tumwater 103.7
Sumter 88.0
Goods
Olympia-Lacey-Tumwater 105.0
Sumter 96.3
Services
Olympia-Lacey-Tumwater 91.7
Sumter 87.3
Rents
Olympia-Lacey-Tumwater 116.7
Sumter 60.8
Vertical line = national average (100)
Olympia-Lacey-Tumwater
103.7
Cost Index
Sumter
88.0
Cost Index
How the Price Gap Changed
Olympia-Lacey-Tumwater and Sumter share 17 published annual releases from 2008 through 2024. Their overall gap held broadly steady, moving from 16.0 to 15.7 RPP points. Olympia-Lacey-Tumwater remained the higher-index metro in the latest release.
Services changed the most within this pair: its gap moved 11.7 points between the first and latest shared releases (7.3 to 4.4 points). This describes a relative price-index history, not a forecast or a household budget.
| Release Year | Olympia-Lacey-Tumwater RPP | Sumter RPP | Relative Gap |
|---|---|---|---|
| 2008 | 105.4 | 89.4 | 16.0 points Olympia-Lacey-Tumwater higher |
| 2012 | 101.3 | 89.6 | 11.7 points Olympia-Lacey-Tumwater higher |
| 2016 | 106.0 | 87.1 | 18.9 points Olympia-Lacey-Tumwater higher |
| 2020 | 101.9 | 81.4 | 20.5 points Olympia-Lacey-Tumwater higher |
| 2024 | 103.7 | 88.0 | 15.7 points Olympia-Lacey-Tumwater 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.
Frequently Asked Questions
Is Sumter more expensive than Olympia-Lacey-Tumwater?
Sumter is 15.1% less expensive than Olympia-Lacey-Tumwater. The overall cost index is 88.0 vs 103.7 (national average = 100).
What salary in Sumter equals $100K in Olympia-Lacey-Tumwater?
A $100,000 salary in Olympia-Lacey-Tumwater has the same purchasing power as $84,904 in Sumter. This is based on the BEA Regional Price Parity indexes.
How do rents compare between Olympia-Lacey-Tumwater and Sumter?
Rents in Olympia-Lacey-Tumwater are indexed at 116.7 while Sumter is at 60.8 (national average = 100). Olympia-Lacey-Tumwater has higher rents.
Data sources
- BEA Regional Price Parities (RPP), the cost-of-living indices shown on this page
- U.S. Census Bureau, American Community Survey (ACS), gross-rent observations behind the rents component
- BLS Consumer Price Index (CPI), goods and services price relatives
- BLS Occupational Employment and Wage Statistics (OEWS), labor-driven services component
- HUD Fair Market Rents (FMR), 40th-percentile rent cross-reference
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.