Overall
- Macon-Bibb County
- 88.5
- Decatur
- 88.4
Diff -0.1 RPP
Cost of living comparison based on BEA Regional Price Parities. Decatur is 0.1% less expensive than Macon-Bibb County.
Decatur, IL is 0.1% less expensive than Macon-Bibb County, GA on BEA Regional Price Parities (overall RPP 88.4 vs 88.5). A $100,000 salary in Macon-Bibb County buys about the same as $99,880 in Decatur; the largest component gap is rents.
RPP parity plate
Pair GA:IL 88.5→88.4
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.
Macon-Bibb County, GA and Decatur, IL are a photo finish on overall price level, only 0.1 RPP points apart. A salary conversion is therefore a fine adjustment, not evidence of a fundamentally different cost regime.
Rents creates the largest separation: Decatur is 2.7 points lower. But services 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 Macon-Bibb County corresponds to $99,880 in Decatur.
Diff -0.1 RPP
Diff -2.6 RPP
Diff +1.6 RPP
Diff -2.7 RPP
| Category | Macon-Bibb County | Decatur | Difference |
|---|---|---|---|
| Overall | 88.5 | 88.4 | -0.1 |
| Goods | 96.3 | 93.6 | -2.6 |
| Services | 89.5 | 91.1 | +1.6 |
| Rents | 58.9 | 56.2 | -2.7 |
Vertical line = national average (100)
What a salary in Macon-Bibb County would need to be in Decatur for the same purchasing power:
| In Macon-Bibb County | In Decatur | Difference |
|---|---|---|
| $50,000 | $49,940 | $-60 |
| $75,000 | $74,910 | $-90 |
| $100,000 | $99,880 | $-120 |
| $150,000 | $149,820 | $-180 |
Same BEA Regional Price Parity ratio as the table above (88.5 → 88.4), computed live from your number, nothing is sent anywhere.
Decatur is 0.1% less expensive than Macon-Bibb County. The overall cost index is 88.4 vs 88.5 (national average = 100).
A $100,000 salary in Macon-Bibb County has the same purchasing power as $99,880 in Decatur. This is based on the BEA Regional Price Parity indexes.
Rents in Macon-Bibb County are indexed at 58.9 while Decatur is at 56.2 (national average = 100). Macon-Bibb County 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.