How do listed and package-standardized prices for common burger components differ across U.S. ZIP markets and days? This fixed research snapshot contains 457,352 unaggregated, quality-filtered price observations across 10 burger-component categories, 12 U.S. ZIP markets, and 29 consecutive dates from July 21 through August 18, 2026. The analysis-ready CSV preserves product titles, dates… See the full description on the dataset page: https://huggingface.co/datasets/costinflation/457k-prices-build-a-burger.