Overall
- Sioux City
- 86.5
- Cape Girardeau
- 86.1
Diff -0.4 RPP
Sioux City vs Cape Girardeau
Cost of living comparison based on BEA Regional Price Parities. Cape Girardeau is 0.4% less expensive than Sioux City.
0.4% less expensive
Cape Girardeau, MO-IL is 0.4% less expensive than Sioux City, IA-NE-SD on BEA Regional Price Parities (overall RPP 86.1 vs 86.5). A $100,000 salary in Sioux City buys about the same as $99,565 in Cape Girardeau; the largest component gap is services.
- Overall RPP 86.5 (Sioux City) vs 86.1 (Cape Girardeau)
- $100k in Sioux City ≈ $99,565 purchasing power in Cape Girardeau
- Services drives the gap (+2.9 RPP points)
RPP parity plate
Pair IA:MO 86.5→86.1
PHOTO-FINISH · CROSS-STATE · SPLIT-BUDGET · BOTH-BELOW · PP-PAR
- PHOTO-FINISH Photo finish
- CROSS-STATE IA × MO
- SPLIT-BUDGET Split budget
- BOTH-BELOW Both below 100
- PP-PAR PP near-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.
Sioux City
86.5
Cost Index
Cape Girardeau
86.1
Cost Index
What This Comparison Actually Tells You
Sioux City, IA-NE-SD and Cape Girardeau, MO-IL 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.
Services creates the largest separation: Cape Girardeau is 2.9 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 service-heavy household, test childcare, health, and other locally supplied costs before relying on rent alone. The BEA ratio converts $100,000 in Sioux City to $99,565 in Cape Girardeau, but it is not a personal spending weight.
Category Breakdown
Goods
- Sioux City
- 94.0
- Cape Girardeau
- 94.2
Diff +0.2 RPP
Services
- Sioux City
- 82.7
- Cape Girardeau
- 85.6
Diff +2.9 RPP
Rents
- Sioux City
- 57.8
- Cape Girardeau
- 56.4
Diff -1.4 RPP
| Category | Sioux City | Cape Girardeau | Difference |
|---|---|---|---|
| Overall | 86.5 | 86.1 | -0.4 |
| Goods | 94.0 | 94.2 | +0.2 |
| Services | 82.7 | 85.6 | +2.9 |
| Rents | 57.8 | 56.4 | -1.4 |
Visual Comparison
Overall
Sioux City 86.5
Cape Girardeau 86.1
Goods
Sioux City 94.0
Cape Girardeau 94.2
Services
Sioux City 82.7
Cape Girardeau 85.6
Rents
Sioux City 57.8
Cape Girardeau 56.4
Vertical line = national average (100)
Salary Equivalents
What a salary in Sioux City would need to be in Cape Girardeau for the same purchasing power:
| In Sioux City | In Cape Girardeau | Difference |
|---|---|---|
| $50,000 | $49,783 | $-217 |
| $75,000 | $74,674 | $-326 |
| $100,000 | $99,565 | $-435 |
| $150,000 | $149,348 | $-652 |
$ in Sioux City = in Cape Girardeau
Same BEA Regional Price Parity ratio as the table above (86.5 → 86.1), computed live from your number, nothing is sent anywhere.
Frequently Asked Questions
Is Cape Girardeau more expensive than Sioux City?
Cape Girardeau is 0.4% less expensive than Sioux City. The overall cost index is 86.1 vs 86.5 (national average = 100).
What salary in Cape Girardeau equals $100K in Sioux City?
A $100,000 salary in Sioux City has the same purchasing power as $99,565 in Cape Girardeau. This is based on the BEA Regional Price Parity indexes.
How do rents compare between Sioux City and Cape Girardeau?
Rents in Sioux City are indexed at 57.8 while Cape Girardeau is at 56.4 (national average = 100). Sioux City 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.