Philadelphia-Camden-Wilmington vs Decatur

What This Comparison Actually Tells You

The Bureau of Economic Analysis indexes Philadelphia-Camden-Wilmington, PA-NJ-DE-MD at an overall Regional Price Parity of 102.6 and Decatur, IL at 88.4, using the U.S. national average of 100 as the reference point. That puts Decatur 13.8% less expensive than Philadelphia-Camden-Wilmington on a blended basket of goods, services, and rents. The raw index gap of 14.1 points matters more than the headline comparison because it flows directly into salary-equivalent math that families use for relocation, job offers, and remote-work arbitrage decisions.

Inside the breakdown, Philadelphia-Camden-Wilmington indexes goods at 96.8, services at 114.4, and rents at 113.1, while Decatur comes in at 93.6, 91.1, and 56.2 on the same three categories. The rent line carries the largest weight in the BEA methodology, so a metro with a higher rent index almost always ends up more expensive overall - Philadelphia-Camden-Wilmington carries the heavier rent load here, and that tends to dominate household budget experience on the ground.

In salary terms, a $100,000 income in Philadelphia-Camden-Wilmington has the same purchasing power as $86,220 in Decatur based on these indexes. The two metros serve populations of roughly 6,241,882 (Philadelphia-Camden-Wilmington) and 102,591 (Decatur), and median household incomes are $89,273 versus $62,449 respectively - so the right way to read this comparison is never the index alone, but the ratio of your expected local salary to the rent and services mix. For any serious relocation or remote-work decision, pair this BEA comparison with BLS occupation-specific wage data, HUD Fair Market Rent tables, and state tax treatment before committing.