Washington-Arlington-Alexandria vs St. Louis

What This Comparison Actually Tells You

The Bureau of Economic Analysis indexes Washington-Arlington-Alexandria, DC-VA-MD-WV at an overall Regional Price Parity of 108.9 and St. Louis, MO-IL at 95.1, using the U.S. national average of 100 as the reference point. That puts St. Louis 12.7% less expensive than Washington-Arlington-Alexandria on a blended basket of goods, services, and rents. The raw index gap of 13.8 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, Washington-Arlington-Alexandria indexes goods at 104.8, services at 106.7, and rents at 151.1, while St. Louis comes in at 100.0, 69.9, and 79.0 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 - Washington-Arlington-Alexandria 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 Washington-Arlington-Alexandria has the same purchasing power as $87,330 in St. Louis based on these indexes. The two metros serve populations of roughly 6,263,796 (Washington-Arlington-Alexandria) and 2,809,414 (St. Louis), and median household incomes are $123,896 versus $78,225 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.